Verlet Ascend is a challenging roguelike action-platformer. Leap, run, swing, climb, ascend, survive as long as you can. Rope physics, fully destructable terrain, upgrades, and enemies. Visuals aren't great, but they are interesting and distinctive.
https://store.steampowered.com/app/2113120/Verlet_Ascend/
Steamで75% OFF:Verlet Ascend

Verlet Ascend is a physics based, action platformer with roguelike mechanics, a fully destructable procedurally generated environment, and rope swing physics. Fight creatures, loot enemies, upgrade your character, and climb your way up in an endless parkour.

Meet me at NooN is a mind-bending puzzle game of time-loops. Control two spirits and synchronize their movements to reach the goals. Brilliant and challenging, with neat visual style.
https://store.steampowered.com/app/1880490/Meet_me_at_NooN/
https://www.humblebundle.com/store/meet-me-at-noon
https://pandaroointeractive.itch.io/meet-me-at-noon
Steamで50% OFF:Meet me at NooN

Meet me at NooN はタイムループのギミックが特徴で、心地よくもやり甲斐のがある難しさのパズルゲームです。タイムループを作る2つの精霊を操作し、プレイの中でキャラクター間の行動や性質の違いを理解し、互いのタイムループにどう影響するのかをマスターします。

Terror of Hemasaurus is fun, retro action-arcade game in the vein of the classic Rampage. But this game surpasses it's inspiration; it's bigger, better, with lots of new stuff, and a silly satirical story.
https://store.steampowered.com/app/1016180/Terror_of_Hemasaurus/
https://www.nintendo.com/store/products/terror-of-hemasaurus-switch/
Terror of Hemasaurus on Steam

A retro city smash 'em up with satisfying destruction physics. Play as a Giant Monster unleashing terror upon mankind in this modern arcade experience with the action turned up to eleven.

INCISION is just a really good old-school FPS, nothing more, nothing less. A pretty standard selection of weapons, a variety of monsters, lots of blood and gore. Challenging and intense. Early Access
https://store.steampowered.com/app/1734680/INCISION/
INCISION on Steam

All old-school FPS action. No Bullshit. Lots of blood & gore. Slaughter your way through nightmarish industrial mazes, transformed cityscapes and surreal alien structures to cut down the Growth in this ultraviolent, fast-paced, and merciless retro-styled first person shooter.

Grapple Dog is a pure delight. Some of the smoothest platforming ever, incredible polish, fantastic level design, charming visuals. Friendly and challenging. Wonderful.
https://store.steampowered.com/app/1345860/Grapple_Dog/
Steamで75% OFF:Grapple Dog

Jump, Swing and Zip your way through colourful worlds and exciting challenges in this unique 2D action-platformer! Master the power of the Grapple on your adventure to save the world!

Koala Kids is a charming, straightforward puzzle-platformer. Rescue your fellow koalas with a variety of interesting tools. Includes a level editor. Very cheap.
https://store.steampowered.com/app/381870/Koala_Kids
Save 75% on Koala Kids on Steam

Koala Kids is a puzzle-platformer game, in the style of retro games like Lode Runner. Includes Hot-seat Coop and Level Editor.

By the way, you should check out Koala Kids Golf, the upcoming follow-up. Golf, but your ball is a Koala, and your goal is not a hole, but treasure spread out across a big course. Simple, but playful and fun. Demo available.
https://store.steampowered.com/app/1803220/Koala_Kids_Golf/
Save 10% on Koala Kids Golf on Steam

Control your Koala and collect treasure while avoiding dangers in this non-traditional Golf Game. Play through Challenges or with friends, Local or Online!

Clash Force is a very solid run-and-gun action platformer. 8-bit and 80s inspired. Nothing new, but fun and challenging.
https://store.steampowered.com/app/703620/Clash_Force/
Steam で 80% オフ:Clash Force

A bite-sized, 8-bit style run-and-gun inspired by Saturday morning cartoons of the 80s!

Panic Porcupine, from the same developer, is a seriously hardcore Sonic-style platformer, where everything can kill you in one hit. And there are collectables and timers for extra challenge.
https://store.steampowered.com/app/1820570/Panic_Porcupine/
Panic Porcupine on Steam

A Meat-Like/Hedge-Like Mashup! Dr. Proventriculus is snatching up the Chickabirbs! Help Panic blast through over 50 stages of topsy-turvy, spike-laced, slime-drenched, buzzsaw-filled deathtraps to rescue them! And remember, there are no rings...

Bleep Bloop is neat co-op tilt maze puzzle game. Making this classic puzzle genre co-operative adds something interesting, and there are some other neat mechanics. Fun and charming.
https://www.nintendo.com/store/products/bleep-bloop-switch
https://store.playstation.com/en-us/product/UP4480-CUSA16341_00-0000000000000000
Bleep Bloop for Nintendo Switch - Nintendo Official Site

Meet Bleep and Bloop as they help each other overcome all the challenges that stand in their way. A light-hearted and playful puzzle game about working together. Play alone controlling both characters or share the experience with a friend. Bleep Bloop is…

Mail Mole is an incredibly charming 3D platformer. It's just slightly different from other games in the genre, but that's enough to be fresh, and the level design and graphics are great.
https://www.nintendo.com/store/products/mail-mole-plus-xpress-deliveries-switch/
Mail Mole + 'Xpress Deliveries for Nintendo Switch - Nintendo Official Site

Running through the underground, climbing walls and soaring the skies, there's no place our hero can't reach! Traveling with Cannon Lines, Molty will take on the most demanding and varied platforming challenges to reach Carrotland's furthest and oldest M…

Room to Grow is a charming and challenging puzzle game about a cactus pushing plants around. The mechanics are very unique and the puzzles are interesting, and the visuals are nice and complement the gameplay well.
https://store.steampowered.com/app/1471960/Room_to_Grow/
Steamで75% OFF:Room to Grow

サボテンが主役の新感覚パズルゲーム。他の植物を咲かせながら、ぐんぐん成長して砂漠を目指そう!

Sqroma is a clever and challenging dodging-only action puzzle game of fine movement, color matching, and strategic death. Become immune to the colored hazards or disrupt and destroy enemies by dying. Pay careful attention to how things interact.
https://store.steampowered.com/app/1730000/Sqroma
Steamで70% OFF:Sqroma

Your destruction isn't the end you think; if it's a projectile, it is removed from the puzzle and you are instantly respawned. Consequence? It disrupts the level's balance! Exploit this to defeat enemies and open new paths! Playing the disruptive kamikaze is the key to your success!

Figment is an amazing, gorgeous, surreal, action-adventure in the mind. This game shines with fantastic art and music and writing. Fight the nightmares, who will sing in battle. Free on Steam, cheap in the eShop.
https://store.steampowered.com/app/493540/Figment/
https://www.nintendo.com/store/products/figment-switch/
Save 80% on Figment on Steam

Figment is an action-adventure game that invites you to explore a unique surreal universe filled with music, humor and multi layered narrative. Join Dusty and his ever-optimistic friend, Piper, on an adventure through the different sides of the mind seeking to restore the courage that's been lost.

Figment 2: Creed Valley is out in four days! A stunning sequel with a brand new adventure, with new puzzles and songs and enemies, and greatly improved combat. There's a free prologue you can play now.
https://store.steampowered.com/app/1085220/Figment_2_Creed_Valley/
https://store.steampowered.com/app/1502260/Figment_2_Creed_Valley__Prologue/
Save 80% on Figment 2: Creed Valley on Steam

Figment 2: Creed Valley is an action-adventure game set in the human mind. Face bosses in musical showdowns, make your way through puzzles, and explore unique environments.

Tinykin is a delightful Pikmin-inspired 3D platformer where you're shrunk and must explore a house with the help of littler creatures. Despite the inspiration, it plays more like Mario so even if you don't like Pikmin you should still give this a chance, it's a great game.
https://store.steampowered.com/app/1599020/Tinykin/
https://www.nintendo.com/store/products/tinykin-switch/
Steamで80% OFF:Tinykin

何百匹ものタイニーキンを捕まえてそのユニークな力を駆使し、マイロを故郷の惑星まで送り届けて、元の大きさに戻らせよう!

Moo Lander is an incredibly bizarre twin-stick shooter metroidvania. You're an alien in search of your civilization's greatest resource: milk. But these cows are not coming quietly. Interesting and challenging gameplay. Sometimes frustrating. Still good.
https://www.gog.com/en/game/moo_lander
Moo Lander

Scour the unknown in search for the source of infinite milk with your civilization’s last

GOG.com
What Lies in the Multiverse is a fun, reality-shifting puzzle platformer. The mechanics aren't unique, but the puzzles are inventive & interesting. Also has an engaging story that can be both silly & serious.
https://www.nintendo.com/store/products/what-lies-in-the-multiverse-switch/
https://store.playstation.com/en-us/product/UP6963-CUSA30765_00-WLIM0000000PS4US
https://store.epicgames.com/en-US/p/what-lies-in-the-multiverse-f604fa
What Lies in the Multiverse for Nintendo Switch - Nintendo Official Site

What Lies in the Multiverse is a story-driven 2D adventure that one could call a dramatic comedy. Filled to the brim with hilarious, cartoonish hijinks, the narrative also presents the player with mature and deep themes like death, envy, and obsession. …

Knightin'+ is a very unserious, fun, dungeon-only Zelda-esque action-adventure. Retro graphics, solid gameplay, gets quite challenging.
https://www.nintendo.com/store/products/knightin-plus-switch/
Knightin'+ for Nintendo Switch - Nintendo Official Site

Join brave Sir Lootalot on his epic quest in this little adventure. Explore and fight your way through the four dangerous dungeons filled with dangerous traps, devious puzzles and magical artifacts. Survive all four dungeons by unlocking new abilities an…

Naught is a challenging, twisty-turny, gravity-shifting platformer. Everything this game does has been done before, and yet it still feels very unique. An amazing game.
https://www.nintendo.com/store/products/naught-switch/
https://store.playstation.com/en-us/product/UP4035-CUSA20090_00-NAUGHTBASEGAME00
Naught for Nintendo Switch - Nintendo Official Site

Naught is a platform videogame with a unique control where you rotate the environment to change gravity and guide the main character, Naught, through labyrinth levels full of challenges, hidden places and secrets. Featuring varied, dynamic gameplay, Nau…

Steamroll is a creative, mini-golf-inspired puzzle adventure. Exploration, danger, and different tools add interesting depth to a classic game genre. And the steampunk aesthetic and humor are nice touches.
https://www.nintendo.com/store/products/steamroll-rustless-edition-switch/
https://store.playstation.com/en-us/product/UP3876-CUSA23815_00-9584021902306448
Steamroll: Rustless Edition for Nintendo Switch - Nintendo Official Site

In this steampunk setting, you will play as a young engineer on his first day of work. A young man finding a job? As you can see, everything is possible in video games! The problem is that the mine you work on is about to collapse. Luckily, this budding …

SOLAS 128 is an engaging path direction puzzle. Redirect pulses of light to repair a grand machine. Solving one puzzle activates the next puzzle, making the whole game one giant puzzle. Fun, with dazzling visuals.
https://www.humblebundle.com/store/solas-128
Buy SOLAS 128 from the Humble Store

At its heart, SOLAS is a beam deflection game. Rotate and reposition mirrors to connect light sources and unlock adjacent puzzles. Every pulse is moving to the beat at all times, and each puzzle is connected to the next. Explore this strange interconnected space, learn its rules, and discover the surprises that dwell within. Rather than ordinary light beams, however, these pulses can and will collide with each other. Create new colours, deflect them in new directions, and pay attention to the...

Humble Bundle
Mezmeratu is an incredibly bizarre platformer with Roguelite elements. There are checkpoints, but every time you die, the world changes just a little bit, and if you game over, you'll have to start over. A strange and surreal assault on the senses.
https://store.steampowered.com/app/1325520/Mezmeratu/
Save 50% on Mezmeratu on Steam

A Platform-Hell adventure but with some ROGUE stuff!Discover a new world from the creator of Baobabs Mausoleum, full of surrealistic horror villages, stinky talking characters, impossible rogue platforms and...and a giant fish kidnapped inside an owl's beak. WELCOME TO PROSCIUTTO MISA!

Yin Yang is a minimalist tilt maze puzzle game. Bring Yin and Yang together in interesting puzzles. Multiple pieces and teleportation adds a little to conventional mechanics, but this game is mostly straightforward. Still good, interesting puzzles.
https://store.steampowered.com/app/1501090/Yin_Yang
Save 41% on Yin Yang on Steam

It is a minimalist puzzle game in which you have to join the two opposing forces in the universe: Yin and Yang.

Gravity Den is a hardcore platformer with no jumping, but gravity manipulation. You can freely switch gravity in mid-air, meaning you can practically fly, but momentum makes it tough to maneuver around a variety of obstacles. Exhilarating and fun.
https://store.steampowered.com/app/454970/Gravity_Den/
Steam で 90% オフ:Gravity Den

Den is a one-eyed alien who is grounded after the terrible crash of a spaceship. On this planet, one can control the gravity around him to walk in space. Lucky Dan is also able to change the gravity on the ground. Help him to reach the lost ship.

Hole in the Clouds is a neat, challenging 2D golf game with some unique features. You have to pop the clouds before entering the hole, and there are a variety of obstacles. But also you have special powers and mid-air shots.
https://store.steampowered.com/app/1821340/Hole_in_the_Clouds
Save 61% on Hole in the Clouds on Steam

Pop all the clouds and then sink your shot! Hole in the Clouds is a nonstop minigolf game with puzzle and platforming elements. Swing through the trees, block cannon balls, and let off sprinkle bombs on your way to the hole.

JUSTICE SUCKS is an incredibly unique, violent and silly stealth game. A robot vacuum will go on an epic quest of revenge and rescue it's family. Hack devices, tackle enemies, and vacuum up blood to power special attacks. Crazy fun.
https://store.steampowered.com/app/856890/JUSTICE_SUCKS_Tactical_Vacuum_Action/
https://www.nintendo.com/store/products/justice-sucks-switch/
Steamで80% OFF:JUSTICE SUCKS: Tactical Vacuum Action

JUSTICE SUCKSは、90年代のテレビの世界を舞台に、殺人ロボット掃除機が復讐のために活躍するステルス/アクションゲームです。獲物を追跡し、スマートデバイスをハッキングして致命的なトラップに変え、敵の血を摂取して壊滅的な力を解き放ちましょう。

Chook & Sosig: Walk the Plank is a delightfully silly point-and-click adventure about a group of weird friends playing a pirate TTRPG. The interplay between the pirate game world and the "real" world is really fun and clever.
https://www.humblebundle.com/store/chook-sosig-walk-the-plank
Buy Chook & Sosig: Walk the Plank from the Humble Store

Chook & Sosig: Walk the Plank is a mischievous, charming and character-driven adventure.Along with a few friends, Chook & Sosig get creative while roleplaying as pirates. When you need to hunt for fabled treasure, you need some weird pals to join your quest! Join a ghostly chicken and a wobbly spaghetti cat as they seek fabled treasures, solve puzzles, wear dashing hats, and who knows what else!Through point and click gameplay and hilarious dialogue with oddball characters, the world of Chook...

Humble Bundle
Recursed is amazing, ingenious, and challenging. Incredibly unique mechanics built around recursion. This game broke my brain. Visuals are only serviceable, but who cares with puzzles this good.
https://store.steampowered.com/app/497780/Recursed/
Save 75% on Recursed on Steam

A puzzle game where the rooms are items and the items are rooms. Get to the goal by moving, rearranging and duplicating rooms and altering the structure of the world.

Severed Steel is an exhilarating hardcore FPS. Jump, slide, dive, wall-run all over to avoid a storm of bullets and take down enemies in a number of ways. Amazing game with tons of options.
https://store.steampowered.com/app/1227690/Severed_Steel/
https://www.nintendo.com/store/products/severed-steel-switch/
Steamで90% OFF:Severed Steel

流れるようなスタントシステム、破壊可能なボクセル環境、多数のバレットタイム、個性あふれる片腕の主人公、そしてダークなエレクトロニックサウンドトラックを特徴とする、スタイリッシュで直感的なシングルプレイFPS。

Patrick's Parabox is a delightful and mind-bending Sokoban-like where you can go inside some blocks, even recursively. Has a nice difficulty curve, so you'll have plenty of fun before the game breaks your brain. Brilliant!
https://store.steampowered.com/app/1260520/Patricks_Parabox/
Steamで50% OFF:Patrick's Parabox

箱の中で箱を運んだら、その箱の中でまた箱運び… 無限の繰り返しを利用しながら、洗練されたディープなシステムを楽しみましょう。常識をひっくり返す、めくるめくパズルゲームです。

Moncage is a creative puzzle game where lining up panoramas viewed on the sides of a cube can change things. Puzzles are challenging, but it has a good hint system. There's also a story, told slowly and obtusely. Very interesting and engaging.
https://store.steampowered.com/app/1195290/Moncage/
Steamで30% OFF:Moncage -箱庭ノ夢-

それぞれの面の中には、一見無関係に見えて実は絡み合っている、全く別の世界が広がっている不思議なキューブ。 繋がりを見つけ、謎を解き明かし、新しい世界を切り開き、その背後にある真実を発見してください。

Captain Backwater is a tilt block puzzle game where you must crash matching items together to collect the treasure. Unusual mechanics, if not completely unique. Lots of puzzles. (btw, it's free on PC)
https://www.nintendo.com/store/products/captain-backwater-switch/
Captain Backwater for Nintendo Switch - Nintendo Official Site

Play Captain Backwater today and get ready for one of the greatest pirate puzzle adventures of all time. Meet Captain Backwater, the 'scariest' pirate in the Caribbean, and help him plunder 100 treasure caves. Each cave is a puzzle that demands everythin…

Trash Quest is a nice, small, fun Metroidvania with no checkpoints or save points, just a central hub and shortcuts. Good, challenging gameplay and cute presentation. And you're a raccoon with a gun, that's neat.
https://www.nintendo.com/store/products/trash-quest-switch/
Trash Quest for Nintendo Switch - Nintendo Official Site

SPACE VOYAGE Trash Quest is set on the space station Deliverance. The crew has just begun preparations for the long voyage to Tau Ceti. The AI has been activated, and it's performing a quick system check. FEARLESS RACCOON You play as a raccoon that has n…

Mekabolt is a nifty and fun pixel art puzzle-platformer. The puzzles are easy, but the platforming is tricky, and the variety of robots and the way they are used is very interesting.
https://www.nintendo.com/store/products/mekabolt-switch/
Mekabolt for Nintendo Switch - Nintendo Official Site

Players take the role of a theme park technician that needs to collect batteries to repair the haywire robots. With your handy Mekabolt, use the out of control robots to your advantage to overcome obstacles and obtain the batteries across 100 puzzle plat…

Islets is a charming, quirky metroidvania with wonderful visuals, solid combat, challenging platforming, and some neat mechanics. Bring the fragmented sky islands back together, and help out wherever you can. Fantastic game.
https://www.humblebundle.com/store/islets
Buy Islets from the Humble Store

Iko is an aspiring yet hopeful warrior exploring the land and sky to reunite a series of floating islands. With his rickety airship, he must travel from island to island in order to reignite each one’s magnetic core while fighting off the many adversaries standing in his way. Islets is a surprisingly wholesome metroidvania about making connections with the people around you. By reuniting the islands and befriending a cast of charming characters, the world expands and reveals new parts of each...

Humble Bundle
The Spirit and the Mouse is a charming 3D adventure platformer about a mouse tasked with doing good deeds. An accident gives a humble mouse the electric powers of a guardian spirit and she has to do it's work. Adorable and fun.
https://www.humblebundle.com/store/the-spirit-and-the-mouse
Buy The Spirit and the Mouse from the Humble Store

After a shocking thunderstorm brings them together, unlikely allies Lila the mouse and Lumion the Spirit guardian must work in tandem to restore balance to their quaint village. Thankfully, Lila has her big heart and electrifying new powers to aid her on this journey. Guide her through a heartwarming adventure across Sainte-et-Claire to befriend playful electric spirits called Kibblins and illuminate this village once more. The Spirit and the Mouse is a narrative-focused adventure game that h...

Humble Bundle
Relicta is an engaging first-person puzzle adventure with interesting (if not very original) gameplay and story. Stunning visuals, an incredible level of detail and really good writing.
https://store.steampowered.com/app/941570/Relicta/
https://store.playstation.com/en-us/product/UP2047-CUSA17538_00-ARELICTA00000000/
https://www.gog.com/game/relicta
https://www.nintendo.com/store/products/relicta-switch/
Save 90% on Relicta on Steam

Relicta is a first-person physics-based puzzle game where you need to creatively combine magnetism and gravity to unravel the secrets of Chandra Base.

SkateBIRD... really isn't my kind of game. I'm pretty bad at it. But I'm happy it exists, because it's delightful. A wonderful, charming, creative skateboarding game.
https://www.nintendo.com/store/products/skatebird-switch/
SkateBIRD for Nintendo Switch - Nintendo Official Site

Grind on bendy straws, kick-flip over staplers, and carve killer lines through cardboard and sticky tape parks, in SKATEBIRD®! You're a lonely lil' bird, and your Big Friend has hung up their board for good. Their job sucks, and lately, they're barely ev…

Papertris is a good but misleadingly named action arcade puzzle game. It's not Tetris, it's Match 3. Kinda like Puyo Puyo, but with a few interesting wrinkles. Not particularly outstanding or groundbreaking, but good and cheap.
https://store.steampowered.com/app/1633640/Papertris/
Save 30% on Papertris on Steam

Papertris is a fast and exciting arcade puzzle game that combines classic gameplay with fresh new features

Icemaze Cave: Skate Escape is a very straightforward tilt maze puzzle game. Slide on the ice, reach the goal, pick up gold. There are no new ideas here, mechanics are very basic. But it's fine, and there's lots of puzzles. And they get tough.
https://store.steampowered.com/app/1834120/Icemaze_Cave_Skate_Escape/
Icemaze Cave: Skate Escape on Steam

Icemaze Cave: Skate Escape is a 2D puzzle game about path planning with exploration and collection elements. Skate through the icy and labyrinthine depths of Icemaze Cave. Explore the increasingly complex cave rooms and find your way across the icy floors to the exit.

Pippu - Bauble Quest is a short, charming, Mario-esque platformer. More challenging than it looks, but not by much. Simple and fun.
https://store.steampowered.com/app/1604110/Pippu__Bauble_Quest/
Save 90% on Pippu - Bauble Quest on Steam

Take Pippu on an epic platforming adventure to defeat the nefarious Obkins and retrieve the stolen Baubles!

Revolver and Co is a quirky and silly trivia game where you're given a very weird and wasteful gun to shoot robots with. Answer questions to shoot, the further you are from the answer, the more bullets you waste. Don't run out!
https://store.steampowered.com/app/1604100/Revolver_and_Co/
Save 90% on Revolver and Co on Steam

Take control of a revolver that asks trivia questions, and discharges its own ammo the more wrong your answers are!

Gyro Boss DX is an exciting, challenging, endless dodge-em-up, bullet-hell arcade game. Face a terrifying space pirate with a bunch of different attacks he uses randomly. Last as long as you can. Includes a multiplayer mode.
https://store.steampowered.com/app/971610/Gyro_Boss_DX
Save 90% on Gyro Boss DX on Steam

Dodge an endless assault of weapons as you orbit around the boss on a fixed circle, it's not as easy as it looks. Can you secure bragging rights as the best space pilot to bite the dust against the alien menace?

Nakawak is a short, cool, retro Metroidvania. The gameplay is pretty conventional, but good enough. The visuals, though, are weird and incredible and unique.
https://store.steampowered.com/app/716150/Nakawak_Expanded_Color_Edition/
https://anxious-neck-games.itch.io/nakawak
Save 81% on Nakawak: Expanded Color Edition on Steam

Nakawak is a handheld style Metroidvania. Explore! Power Up! Escape! This is a retro game displaced in time. Now features expanded content!

FutureGrind is a wild, challenging, and completely unique sports game. Wonderful style, quick to learn, hard to master, and really fun. Also features an interesting sci-fi story.
https://store.steampowered.com/app/355820/FutureGrind/
Save 50% on FutureGrind on Steam

Nail the perfect line in the future's most challenging stunt sport! Grab your bike and hit the rails in this stylish stunt-racer all about tricks, skill, and speed. Chain together huge combos on tracks made of floating rails, but watch out: touch the rail of the wrong color and you'll explode!

Button Button Up! is a cute and unique platformer. While the single-player campaign is solid, the multiplayer modes shine. Very fun and creative, interesting mechanics.
https://store.steampowered.com/app/623320/Button_Button_Up/
https://www.nintendo.com/store/products/button-button-up-switch/
Steam で 61% オフ:Button Button Up!

"Button Button Up!" is a platformer party game. Players need to use limited resources to help their partner passing different laser obstacles. The bros are going share their weal and woe to complete a fantastic adventure by the lead of Mr. Bunny.

Donut Dodo is a fun retro arcade single-screen platformer in the vein of Mario Bros or Bubble Bobble. Grab all the donuts you can, including the giant one protected by a Dodo bird. Cartoony, with a very authentic 80s look and feel.
https://store.steampowered.com/app/1779560/Donut_Dodo/
Save 20% on Donut Dodo on Steam

If a long lost arcade game from 1983 resurfaced today, it would be Donut Dodo - a classic 2D platformer from the golden era, tough as nails and challenging for the whole family! Ready to top the high score table?

Röki, by Polygon Treehouse, is a wonderful adventure game inspired by Scandinavian folklore. Kinda spooky, especially at the beginning, but more than that it's thoughtful and emotional.
https://www.nintendo.com/store/products/roki-switch/
Röki for Nintendo Switch - Nintendo Official Site

Rediscover magic and chart your adventure through this forgotten northern world of mystery and monsters. Find your courage, discover hidden paths, solve ancient puzzles and travel deeper through the icy land to learn the truth. We join Tove on a fantas…

By the way, Polygon Treehouse is working on a new game, Mythwrecked. Shipwrecked on a magical island, Alex must befriend the Greek Gods, help them find their treasures, their memories, and ultimately their identity. Looks interesting.
https://store.steampowered.com/app/2000210/Mythwrecked_Ambrosia_Island
Steamで40% OFF:Mythwrecked: Ambrosia Island

あなたが流れ着いた場所、それは失われた神話の島。あなたはバックパッカーのアレックスとして、忘れられたギリシャ神話の神々と友だちになり、彼らの記憶を取り戻してあげよう。新たな友情を築き、秘められた謎を解き明かし、そして神々を救うため、力の溢れるこの島を冒険し、そこで紡がれる物語の箱庭を体験しよう。

UnMetal is a hilarious and fun Metal Gear parody. Polished gameplay that emulates the classics but is as solid as anything you can play today, and wonderfully funny writing. Fantastic, creative game.
https://www.nintendo.com/store/products/unmetal-switch/
UnMetal for Nintendo Switch - Nintendo Official Site

You play as Jesse Fox who finds himself imprisoned in a covert military base where he was arrested for a crime he didn't commit. Jesse must now escape using his dry wits, quick words, improvised skills, arsenal of warfare, violent explosives, MacGuyvered…

Love is Dead is goofy and inventive. A simple and easy but fun puzzle game with heart and humor. It's got zombies and pancakes!
https://www.humblebundle.com/store/love-is-dead
Buy Love is Dead from the Humble Store

i saw her standing there...Love is Dead is an action/puzzle game about love, death, and pancakes. Control two freshly dead zombies, moving them independently, and reunite them safely at the end of each level as you scour the globe in search of the only thing that matters after the apocalypse... your beloved pets. You and your love are on a world-spanning adventure through graveyards, cities, an art gallery, a volcano, and beyond in a world filled with danger and surprises alike. With the abil...

Humble Bundle
Wings of Glass, from SayuriArtsy, is a strangely beautiful but also frightening 3D platformer adventure. It's kinda janky, but charming, creative, and compelling. Escape and survive in a weird and hostile world.
https://store.steampowered.com/app/1010780/Wings_of_Glass/
Save 70% on Wings of Glass 玻璃の羽 on Steam

Mayfly, a girl with glass wings, is kidnapped by Ferace, a giant demon. Ferace rips off the wings that define her, but loses Mayfly to a cave. She is weak and scared. Dangers lie before and ahead of her. Be careful, stealthy, and smart to survive. She'll need to find her wings to get home.

Feathery Ears is another somewhat janky but still great 3D platformer from SayuriArtsy. Less horror, more dreamy action/adventure. Use your fire sword to slay enemies and save the stars!
https://store.steampowered.com/app/992200/Feathery_Ears/
Save 70% on Feathery Ears 羽耳 on Steam

Below the planet's core, Misa wakes up on a pink beach to learn that Gembugs have pulled the stars out of the sky. Her friend Coral gives her a Fire Sword to defeat them. It's up to her to bring the stars back up where they belong.

Spinch is a challenging and visually stunning platformer. The graphics are wild and intense. Gameplay is mostly straightforward but very polished. Just incredible.
https://store.steampowered.com/app/794240/Spinch/
Save 45% on Spinch on Steam

Transcend the material realm and assume your true form as Spinch, a hyper-agile organism consumed by the quest to rescue a litter of its missing offspring, in this side-scrolling, psychedelic platformer from the mind of award-winning Canadian cartoonist, Jesse Jacobs.

Arietta of Spirits is a short, emotional, Zelda-esque action-adventure. Solid but not very remarkable gameplay wise, but with an engaging story and gorgeous visuals.
https://store.steampowered.com/app/1140170/Arietta_of_Spirits/
Arietta of Spirits on Steam

Arietta of Spirits is a story-driven action-adventure game, with easy to approach game mechanics. Follow Arietta on her journey to unveil the mysteries of the Spirit Realm and immerse yourself in a story filled with emotion and surprising turns.

Shiro is kinda like Celeste crossed with Momodora. Hardcore platformer with one hit death but frequent checkpoints, and also combat. Distinctive playfeel that will take time to get used to, but is very engaging.
https://store.steampowered.com/app/1290710/Shiro/
Steamで90% OFF:Shiro

Shiro is an adventure platformer in which you have to find your missing sister

Gibbon: Beyond the Trees is incredible. Fantastic, fluid movement and great visuals. Is it possible for a video game to be effective environmental activism? If it is, this game is doing it. Impossible to play and not feel something.
https://store.steampowered.com/app/1837330/Gibbon_Beyond_the_Trees/
Gibbon: Beyond the Trees on Steam

Master the gibbon’s art of movement with a unique moveset that lets you swing, slide and somersault through a lush jungle canopy, and experience a free-flowing story of family and survival as you search for a home that may be lost forever.

Diaries of a Spaceport Janitor is .... an experience. And not an entirely pleasant one. But that's clearly intentional. It's also amazing, and features a city teeming with life, with loads of intricate detail. Feels very...real.
https://store.steampowered.com/app/436500/Diaries_of_a_Spaceport_Janitor/
Steam:Diaries of a Spaceport Janitor

Diaries of a Spaceport Janitor is an anti-adventure game about picking up trash in an alien bazaar. Play as the Janitor, an Alaensee girlbeast with a municipally-subsidized trash incineration job and dreams of leaving the planet of Xabran's Rock far behind her.

Sizeable is wonderful puzzle game about resizing things. The mechanics are fun and unique, the visuals are nice, and the puzzles are interesting. Utterly delightful.
https://store.steampowered.com/app/1333910/Sizeable/
Save 91% on Sizeable on Steam

Sizeable is a relaxing and peacefull puzzle/exploration game! Shrink and grow your way through small dioramas in search of hidden objects!

OK/NORMAL is NOT normal. An extremely surreal 3D adventure (sometimes platformer?) horror game. Sometimes more bewildering than scary, but occasionally very frightening. A strange, amazing, unique experience. Cheap!
https://store.steampowered.com/app/862580/OKNORMAL/
Save 72% on OK/NORMAL on Steam

OK/NORMAL is a short, experimental third-person horror experience, inspired by early 3D console games of the 90's. Journey through a dark, disjointed, dreamlike dimension with your cloud companion! Remember a good diet, take your medicine, and you should be fine!