Nubarron: The Adventure of an Unlucky Gnome is a charming adventure platformer about a gnome cursed to be followed around by a moody cloud. The shifting moods of the cloud pose a variety of interesting challenges. Very inventive.
https://www.nintendo.com/store/products/nubarron-the-adventure-of-an-unlucky-gnome-switch/
Nubarron: The adventure of an unlucky gnome for Nintendo Switch - Nintendo Official Site

Gnome, one of the merry and lucky inhabitants of the forest, lost his lucky hat. This unfortunate event turns out to be a little bit more important than it may seem at plain sight. Gnome's hat was the source of his luckiness and with it gone an unpredict…

BADLAND is thrilling, tough, inventive, and atmospheric. Simple gameplay, but it really keeps you on your toes. Tons of levels, and extra objectives to keep you playing for a while.
https://store.steampowered.com/app/269670/BADLAND_Game_of_the_Year_Edition/
Steamで90% OFF:BADLAND: Game of the Year Edition

ゲームオブザイヤー賞を獲得した『BADLAND』の世界を飛んで、生き残って、道中で無数の予想外のトラップやパズル、障害物を発見しよう。

Yoku's Island Express is a beautiful, amazing, unique game. A pinball metroidvania on a tropical island, where you play as a bug postman. The graphics are great, the gameplay is good. This game is fantastic.
https://store.steampowered.com/app/334940/Yokus_Island_Express/
https://www.humblebundle.com/store/yokus-island-express
Steamで80% OFF:Yoku's Island Express

Meet Yoku, the pint-sized postman protagonist of Yoku's Island Express! Use a unique blend of pinball mechanics, platforming and open world exploration to unlock the secrets of Mokumana Island, help the locals, awaken ancient deities and much more in this amazing new tropical adventure!

Spirits of Xanadu is an engrossing sci-fi horror FPS that uses simple graphics to great effect. Very frightening and challenging, with a mysterious story that will draw you in.
https://store.steampowered.com/app/312230/Spirits_of_Xanadu/
Save 60% on Spirits of Xanadu on Steam

At the farthest edge of the explored universe, the research ship Xanadu slumbers in orbit around a mysterious planet. Her systems remain active but there has been no message from her crew for months. Now a lone operative has been sent to wake the Xanadu and bring her home to Earth.

Youropa is a strange, slow, engaging 3D platformer with wall-walking instead of jumping. Has interesting puzzles, twists and turns, constant re-exploration, and more.
https://store.steampowered.com/app/640120/Youropa/
Steamで85% OFF:Youropa

崩壊したYouropaを取り戻し、自分が何者なのかを知るために、君はバラバラになった不思議な都市の壁を歩いて進んで行かなければならない。これは自然の理を無視して反転する世界で型破りな思考が求められる、プラットフォームパズルペイントアドベンチャーだ。

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/
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…

Dogurai is a retro ninja action platformer that packs a lot of cool into it's very limited old-school style. Slice bullets, ride a motorcycle, perform fancy combo attacks. An amazing experience.
https://www.nintendo.com/store/products/dogurai-switch/
Dogurai for Nintendo Switch - Nintendo Official Site

In a dystopian future, where Armies and the Police were replaced by robots and machines, their creator decided to take over the world. Now, it's up to Bones, a retired dog samurai from the Special Forces, to fight against the robot menace alone. You will…

Dadish is a simple and charming platformer. It's silly, straightforward, and fun. Not really hard, not very innovative, just a good game.
https://www.nintendo.com/store/products/dadish-switch/
Dadish for Nintendo Switch - Nintendo Official Site

Explore an exciting world, face off with fast-food themed foes, and reunite Dadish with his missing children in this challenging platforming adventure. • A challenging retro platformer from the creator of Super Fowlst • Dialog that is funny, but not TO…

I haven't played it yet, but Dadish 2 is also on sale.
https://www.nintendo.com/store/products/dadish-2-switch/
Dadish 2 for Nintendo Switch - Nintendo Official Site

After an impromptu “Bring Your Kids To Work Day” goes awry, Dadish sets off to find his missing children. Along the way he’ll wade through swamps, ride rockets, climb a big tree, and even visit outer space! Help reunite Dadish with his missing kids in th…

The Long Return is a very pretty puzzle-adventure game. It's pretty easy, but still fun, and there's some nice exploration and extra stuff to find. And it just looks great.
https://www.nintendo.com/store/products/the-long-return-switch/
The Long Return for Nintendo Switch - Nintendo Official Site

The Long Return is a casual third-person puzzle adventure game telling the story of an orphaned cub that retraces his steps from the last journey he took with his mother. Along the way you will be challenged by fun and unique puzzles, explore beautiful s…

Zombie Rollerz: Pinball Heroes is an incredibly unique pinball game mashup that integrates defense and roguelite elements. Mow down zombies with your ball and a variety of heroes and powers. A lot of fun.
https://www.gog.com/en/game/zombie_rollerz_pinball_heroes
https://www.humblebundle.com/store/zombie-rollerz-pinball-heroes
Zombie Rollerz: Pinball Heroes

Zombie Rollerz: Pinball Heroes Demo is available here Zombie Rollerz: Pinball Heroes is

GOG.com
Toki Tori is a cute and clever puzzle-platformer. You're given an interesting variety of limited tools to explore levels in search of eggs. A friendly game, cheap (Cheep!)!
https://store.steampowered.com/app/38700/Toki_Tori/
Steamで86% OFF:Toki Tori

Toki Tori は二つのジャンルをブレンドしたゲームです。 一見アクションゲームのようですが、その実はパズルゲームとなっています。プレイヤーは ゲームをクリアする為に限られたツールを使い、マップ上にある全ての卵を回収しなければなりません。マップを攻略する為には「瞬間移動」「Freeze-o-Matic」「InstantRock™」等のアイテムをいかに使いこなし、どのような手順で攻略していくか良く考えなければいけません。使用可能なツールは、4 つの特色ある世界観に跨る 80 を超えるマップを攻略して行くごとに、徐々に使用可能となっていくでしょう。

EDGE is a strange, geometric, isometric platformer where you roll (no jumping) a cube. Roll fast, hang on edges for your dear life, solve puzzles. Challenging, and more exciting and surprising than you might think. Very cheap right now!
https://store.steampowered.com/app/38740/EDGE/
Steamで89% OFF:EDGE

EDGE, the award winning retro-styled platform game has been extended! Now with over 40 brand new levels, additional music and all-new races against the notorious Dark Cube!

RUSH is a path direction puzzle that has simple mechanics but tough levels. Coordinating tons of colored cubes going every direction gets complicated, but watching everything fit into place is its own reward. Very cheap right now!
https://store.steampowered.com/app/38720/RUSH/
Steamで86% OFF:RUSH

From the twisted puzzle minds behind the award winning Toki Tori comes a new game, simply called RUSH. Fortunately for fans of high quality puzzle games, RUSH is anything but simple. In the game's fully three dimensional levels, players need to guide cubes to color coded exit points using Conveyor belts, Warps, Stops Signs, Splits and...

Gato Roboto is a wonderful and silly, stylish and unique metroidvania. The story is fun, the visuals are great, and the game is a nice challenge.
https://store.steampowered.com/app/916730/Gato_Roboto/
https://www.humblebundle.com/store/gato-roboto
Steamで85% OFF:Gato Roboto

ネコでも使えるバトルスーツに乗り込んで、危険に満ちあふれた宇宙の星を探索しよう。モンスターが住みつき、危険な障害物でいっぱいのアンダーワールドに不時着してしまった宇宙船と船長を助け出さなきゃ!

BTW, the developers of Gato Roboto are working on a new game. Check out Gunbrella, it looks good!
https://store.steampowered.com/app/1580180/Gunbrella/
Steamで65% OFF:Gunbrella

この重厚なノワールパンク・アクションアドベンチャーゲームの世界で、多機能な「ガンブレラ」を駆使しながら超常現象を解き明かし、常軌を逸したカルト集団を撃ち抜こう。

SiNKR 1 & 2 are delightful minimalist puzzle games. Straightforward and very well done, the graphics and sound are simple and effective.
https://store.steampowered.com/app/676420/SiNKR/
https://store.steampowered.com/app/973220/SiNKR_2/
Save 75% on SiNKR on Steam

SiNKR is a minimalist puzzler using various contraptions to sink pucks. Responsive ambient music. No holes left behind.

There's going to be a SiNKR 3! And there's demo so you can try it out.
https://store.steampowered.com/app/1705580/SiNKR_3/
Save 25% on SiNKR 3 on Steam

SiNKR 3 is the culmination of the award winning minimalist puzzler series. SiNKR 3 offers a new slant on the familiar contraptions with new diagonal layouts and billiards-style physics. BY PLAYER DEMAND: multi-step undo.

0°N 0°W is a surreal experience. An exploration with no real objectives, just a variety of strange and wild worlds to explore. Not for people who are a looking for a "game," so to speak, but for people into art and weird stuff.
https://store.steampowered.com/app/670750/0N_0W/
Steam で 70% オフ:0°N 0°W

Enjoy a surreal vacation in a magical dimension full of audio visual stimulation!

Cheap Golf, from Pixeljam, is weird. A lot weirder than the title would suggest. The narrative is interesting and the gameplay is more fun than you might expect.
https://store.steampowered.com/app/616520/Cheap_Golf/
Steamで33% OFF:Cheap Golf

A retromodern and surreal minigolf comedy hosted by the infamous AI bot SUSAN. ...//-- Fling up and go FULL BOOP --\\...

Snowball!—also from Pixeljam—is an extremely charming pinball game. Just one big table with few interesting features, but nothing too weird or hard. Just cute wintery pinball. Delightful.
https://store.steampowered.com/app/546550/Snowball/
Save 75% on Snowball! on Steam

. . .. ... ......A homegrown, hand-cranked winter pinball adventure. Send your behemoth snow spheres through a bobsled maze of snowbanks, homemade wooden paddles, Tesla coils, igloos, railcars and more... ... .. . .

Beasts of Maravilla Island is a beautiful photography game about exploring a secret island with animals and plants that don't exist anywhere else. Observe behavior, learn, take pictures.
https://store.steampowered.com/app/1378020/Beasts_of_Maravilla_Island/
Save 70% on Beasts of Maravilla Island on Steam

Beasts of Maravilla Island is a 3D adventure game where you take on the role of a young wildlife photographer who traverses Maravilla Island's magical ecosystems to discover extraordinary creatures, learn their behaviors, and, most importantly, photograph their majesty.

Daggerhood is a solid, fun platformer. The teleporting dagger is a neat mechanic. Nothing groundbreaking, just a good game.
https://www.nintendo.com/store/products/daggerhood-switch/
Daggerhood for Nintendo Switch - Nintendo Official Site

Every man should have a skill and for Vincent S. Daggerhood, that skill was thieving. Quick with his hands, there was no loot he couldn’t plunder and no treasure chest he couldn’t escape with. For Daggerhood, life was good, until come that fateful day he…

Adventures of Chris is a nostalgic action-platformer inspired by the cartoons & games of the 90s. The bullied chubby kid saves the world! Feels like something a kid might make, because it kinda is, but with the polish of experience.
https://www.nintendo.com/store/products/adventures-of-chris-switch/
Adventures of Chris for Nintendo Switch - Nintendo Official Site

THE STORY Oh wow, I'm actually kinda surprised you scrolled down this far...that's awesome! My name's Chris, and I'm so excited to tell you about my game! It’s a ‘90s-inspired adventure platformer about the totally normal adventures I went on as a chubby…

Journey of the Broken Circle is a thoughtful, emotional, incredible platformer with a story about relationships. Amazing and surprisingly poignant. Visuals are just fine, could be more legible, but everything else is fantastic.
https://www.nintendo.com/store/products/journey-of-the-broken-circle-switch/
Journey of the Broken Circle for Nintendo Switch - Nintendo Official Site

"an experience everyone should play through at least once" - Nintendo World Report Meet fascinating characters on your quest to complete the imperfect Circle. New partners bring unique abilities and their own personality to roll with... In this 3-5 hours…

Sparklite is a nifty Zelda-esque roguelite. There's a variety of interesting items and a crafting system. Good graphics, solid gameplay.
https://www.nintendo.com/store/products/sparklite-switch/
Sparklite for Nintendo Switch - Nintendo Official Site

Sparklite is an action-adventure set in the whimsical and ever-changing land of Geodia. Battle foes in top-down action using an arsenal of gadgets, guns, and gear. Explore dangerous corners of the procedurally generated world, take down titans of the min…

Blossom Tales: The Sleeping King is a near perfect Zelda-like. The story-telling framing is fun, and everything is so polished and delightful. Nothing groundbreaking, but it's still fantastic. Essential for Zelda fans.
https://www.nintendo.com/store/products/blossom-tales-the-sleeping-king-switch/
Blossom Tales: The Sleeping King for Nintendo Switch - Nintendo Official Site

Explore a vast open game world in classic action-adventure fashion as Lily, Knight of the Rose! Slash your way through monster-infested dungeons to save the Kingdom of Blossom from eternal darkness. Collect unique weapons, spells and items during your j…

There's gonna be a sequel!!!! Blossom Tales 2: The Minotaur Prince looks so good!
https://store.steampowered.com/app/1747830/Blossom_Tales_2_The_Minotaur_Prince/
Blossom Tales 2: The Minotaur Prince on Steam

The Minotaur King has returned...and it's all your fault! Lily's back for a new "classic" action-adventure set hundreds of years after The Sleeping King!

Horace is a thoughtful but also somewhat silly platformer adventure with story-telling emphasis. Partially a game about video games, but also about life and purpose, Horace is engaging and fun.
https://www.gog.com/game/horace
https://www.humblebundle.com/store/horace
Horace

Dieses Meisterwerk von Paul Helman und Sean Scapelhorn ist ein klassisches Plattformspiel

GOG.com
Evan's Remains is an enthralling puzzle platformer with a heavy emphasis on story. In fact, you can skip the puzzles if you only want the story. And it's a really good story. An engaging mystery of secrets and science fiction.
https://store.steampowered.com/app/1110050/Evans_Remains/
https://www.humblebundle.com/store/evans-remains
Steamで80% OFF:Evan's Remains

突然消えた天才少年を探しに行くミステリースリラー。

Sentimental K is a fun action roguelite very much in the vein of Hades. Gameplay is solid, if not very innovative. And the visuals are kinda cool and cheesy with a few rough edges. It's nothing grand but I like it.
https://store.steampowered.com/app/1256530/Sentimental_K
Steam で 69% オフ:Sentimental K

「Sentimental K」は、ミステリアスな美少女Kが繰り広げる3Dアクションローグライクゲームです。武器、スキル、アーティファクト、ボス、ダンジョン構成など、すべての要素がプレイごとにランダムで変化します。これらを駆使してシナジーを見つけ、常に新しく挑戦的なプレイをお楽しみください!

Slice of Sea is a strangely beautiful, wordless point-and-click adventure. You play as a sea creature lost in a weird desert with filled with wrecks, ruins, and remains. Absolutely stunning presentation and interesting puzzles. Gives me Machinarium vibes.
https://store.steampowered.com/app/750290/Slice_of_Sea/
Save 90% on Slice of Sea on Steam

Slice of Sea is a peaceful adventure and puzzle game. You play as Seaweed, a sea creature clearly out of their element. Explore desolate world of dust, all hand-drawn on paper in unique art style. Collect items, solve puzzles and lead Seaweed back home to the sea.

An Airport for Aliens Currently Run by Dogs is a delightful comedy adventure game. Explore airports run by stock photos of dogs; talk to them, help them, pet them. Wonderfully absurd and very funny.
https://store.steampowered.com/app/1246250/An_Airport_for_Aliens_Currently_Run_by_Dogs/
Steamで50% OFF:An Airport for Aliens Currently Run by Dogs

「奇妙キテレツ宇宙人エアポート(運営は犬!?)」は1人称視点のオープンワールド・コメディー・アドベンチャーゲームです。タイトルが示す通り、この空港を管理・運営しているのは犬達。まるでストックフォトをそのまま流用したかのような犬達と話し、彼らが抱える問題を解決し、その上で離陸間際の飛行機に飛び乗らねばなりません。「ゲーム名が長すぎだ」とお考えのあなた!まさに仰る通り。ぐうの音も出ません。面倒なので、作者自身も3ヶ月ほど前から「犬のエアポートゲーム」と略しています。

Super Hiking League is a retro, arcade-style platformer where you race up a mountain. Has very interesting and challenging mechanics. Exhilarating and exciting.
https://www.humblebundle.com/store/super-hiking-league-dx
https://store.steampowered.com/app/915850/Super_Hiking_League_DX/ (more expensive here for some reason)
Buy Super Hiking League DX from the Humble Store

Who's the best 2D platformer in the world? Find out in Super Hiking League DX! New major features in Super Hiking League DX: - Easy difficulty added to Arcade mode! - Brand new 27 stages, unlockable by completing arcade mode in different difficulty settings! - 2 new easier rope modes: Automatic and Mixed! - Watch your own replays or the Hike Master's in Time Attack mode! Other improvements: - Fairer AI for the easier difficulty settings. - Reworked rope bending code. - Alternate character col...

Humble Bundle
BOXNIGMA is a minimalist sliding block puzzle. Conventional, straightforward, and to-the-point. Lots of great puzzles.
https://store.steampowered.com/app/1818250/BOXNIGMA/
Save 20% on BOXNIGMA on Steam

Move the boxes from each level correctly and simultaneously to move to the next challenge in this minimalist and retro 2D puzzle game!

Bonbon is an interesting horror game where you play as a toddler. Amazing level of detail, from the toy interaction to the difficulty walking and carrying things at the same time. Unsettling and scary, but also janky and buggy.
https://store.steampowered.com/app/734120/Bonbon/
Save 66% on Bonbon on Steam

A thirty-minute childhood-horror walking-sim about toys and a giant rat. A short, single-sitting experience.

stikir is a cute and quirky... platformer?... game. Well, whatever you wanna call it it's good. Short, meta, inventive, funny, clever, creative. Very cheap.
https://store.steampowered.com/app/952200/stikir/
Steamで30% OFF:stikir

This game is about making this game.

Spy Chameleon is somewhat silly and fun stealth game. The color-changing mechanic is interesting and works well, even if it isn't groundbreaking or wholly original. Lots of level variety and extra challenges and such.
https://store.steampowered.com/app/297490/Spy_Chameleon__RGB_Agent/
Save 60% on Spy Chameleon - RGB Agent on Steam

Spy Chameleon RGB Agent is a challenging arcade-puzzle game where the player needs to avoid being spotted thanks to the color-changing mechanisms of the main character.

The Sun and Moon is a tight, challenging, elegant platformer. Reverse gravity while playing in negative space. Paying close attention to your momentum is crucial. Cheap right now.
https://store.steampowered.com/app/321560/The_Sun_and_Moon/
https://www.humblebundle.com/store/the-sun-and-moon
Save 85% on The Sun and Moon on Steam

The Sun and Moon, the winner of Ludum Dare 29, is a platformer with a unique mechanic: you can dive into the ground. Momentum is conserved but gravity is reversed, letting you fling yourself high into the air or deep beneath the surface.

INFERNIUM is an amazing game, so unlike anything else I've played. Sometimes frustrating and repetitive, but also incredible and breathtaking. An amazing and unique rendition of hell.
https://store.steampowered.com/app/789950/INFERNIUM/
Save 90% on INFERNIUM on Steam

Infernium, a survival horror approach to Pac-Man. Dive in a non-linear beautiful portrait of hell, die in a prison without bars and overcome a brutal penitence. Also available on Switch and PS4!

HORROR TALES: The Wine is a unique and frightening horror game. A deadly pandemic has swept the land, and the only cure is a bottle of wine from a not-so-abandoned estate. Incredible and breathtaking.
https://store.steampowered.com/app/1340640/HORROR_TALES_The_Wine/
Steam:HORROR TALES: The Wine

パンデミック後の地中海の架空の島を探索し自身の恐怖に立ち向かおう!見捨てられたように見える都市に身を委ね、大切な人々を治療するために必要な貴重なBanydeboscの赤ワインのボトルを見つけるために奮闘しよう。ただし、あなたを監視するNemesisにはお気をつけあれ。

Devolver Bootleg is a fun and somewhat silly collection of 8 retro games based off popular Devolver Digital titles. Many of them are arcade style high-score type things, some take the original ideas in weird directions. A really good collection of games.
https://store.steampowered.com/app/1066260/Devolver_Bootleg/
Save 70% on Devolver Bootleg on Steam

Devolver Bootleg contains eight original rip-offs of Devolver Digital games. Pay money for it now.

NOT A HERO is a wry, silly, cynical action game where you clean up the city—violently—at the behest of mayoral candidate BunnyLord. The gameplay is incredibly good, challenging, and thrilling.
https://store.steampowered.com/app/274270/NOT_A_HERO/
https://www.humblebundle.com/store/not-a-hero-global-megalord-edition
Save 80% on NOT A HERO on Steam

Professional assassin turned amateur campaign manager Steve is charged with cleaning up the city by an anthropomorphic rabbit and mayoral candidate from the future named BunnyLord.

The King's Bird is an incredible and exhilarating platformer with momentum-based gliding. Very neat and challenging...sometimes to a frustrating degree. Not for everyone, but still very good.
https://www.nintendo.com/store/products/the-kings-bird-switch/
The King's Bird for Nintendo Switch - Nintendo Official Site

Escape into a world kept secret by a tyrant, and discover the truth about your freedom. The King’s Bird is an artistic, momentum-based game that seamlessly combines precision-platforming with physics-based gliding. • New yet easily accessible take on the…

Double Cross is a fun action-platformer with lively graphics, solid gameplay, lots of great characters, and an engaging story.
https://www.nintendo.com/store/products/double-cross-switch/
Double Cross for Nintendo Switch - Nintendo Official Site

Developed by 13AM Games, the studio behind award-winning Runbow, Double Cross is an exciting action adventure game that has players take on the role of Zahra, an agent of R.I.F.T. (Regulators of Interdimensional Frontiers and Technology) whose job it is …

Cyber Hook is an exhilarating, hardcore, first person grappling platformer. Intense and fast-paced, even the time-slowdown may not be enough for you to beat these levels.
https://www.nintendo.com/store/products/cyber-hook-switch
Cyber Hook for Nintendo Switch - Nintendo Official Site

Hardcore Parkour! Cyber Hook is a fast-paced, 3D platformer that has you using parkour skills and a grappling hook to scale and ride walls, while fighting enemies and blasting blocks with a finger laser gun. Hurtle forward in a vibrant retrowave enviro…

Paratopic is a short, strange, creepy, fascinating horror game. A confusing but compelling non-linear story. Low-poly graphics to give it retro feel. Fantastic.
https://www.nintendo.com/store/products/paratopic-switch/
Paratopic for Nintendo Switch - Nintendo Official Site

You got caught smuggling VHS tapes across the border, and now there's hell to pay. You want to find an elusive rare bird in the forest and snap its picture. You have to kill a man in the back room of a shady diner. This is Paratopic, an experimental firs…

Virginia is an engaging, cinematic detective story. Very linear with no puzzles, it's more like an interactive movie than a typical adventure game. But it's very engrossing, and told all with no dialog.
https://www.gog.com/game/virginia
https://www.humblebundle.com/store/virginia
Virginia

Virginia is a single-player first-person thriller set in a small town with a secret. Expe

GOG.com
Ghostrunner is AWESOME. A cyberpunk ninja Mirror's Edge. Incredible gameplay, fluid movement, tense combat, every moment just a hairsbreadth away from death.
https://www.gog.com/game/ghostrunner
https://www.humblebundle.com/store/ghostrunner
Ghostrunner

Wow! Check the GOGalicious deals inside The GOG Sale! Ghostrunner ist ein Hardcore-F

GOG.com
Headspun is an incredibly unique adventure game/business sim inside the human brain. Theo is in a coma; it's up to the CEO of Cortex, Ted, to fix things and figure out what happened. Features an interesting mix of great illustrated visuals and FMV with surprisingly good acting.
https://store.steampowered.com/app/808770/Headspun/
https://store.playstation.com/en-us/product/UP4459-CUSA16991_00-HEADSPUNPS400000/
Save 85% on Headspun on Steam

Headspun is a FMV/Adventure hybrid set in Cortex; the world of Theo Kavinsky's broken brain - a game about recovery, discovery, and the ongoing battle between logic and emotion.

Ageless is an incredible and difficult puzzle-platformer like nothing else. The aging mechanic is so unique and creative. A little awkward at times, and the visuals could be better, but it's still amazing.
https://store.steampowered.com/app/1210150/Ageless/
https://www.humblebundle.com/store/ageless
Ageless on Steam

Ageless is a story driven puzzle platformer where you must alter the age of animals and plant life around you to progress. Play as Kiara, a young girl who braves through heartache and loss as she journeys across a mysterious world to discovers its secrets and herself.

Streets of Red : Devil's Dare Deluxe is a hardcore beat'em up mishmash of various classic video games and horror movies. There's a lot of love and style here, but this a seriously hard game made for fans of the classic beat'em ups.
https://store.steampowered.com/app/946650/Streets_of_Red__Devils_Dare_Deluxe/
Streets of Red : Devil's Dare Deluxe on Steam

Welcome to Streets of Red: Devil's Dare Deluxe, the permadeath multiplayer horror beat'em up that bestows players with the skills of retro gaming heroes in a fight against a legion of undead monstrosities. The chills, thrills, bills, and opportunity to learn new skills won't stop until every street runs red with blood!

Fugue in Void is a short, artistic walking sim. There's no story here, no real gameplay, but the worlds you explore are beautiful and striking.
https://moshelinke.itch.io/fugue-in-void (free!)
https://store.steampowered.com/app/883220/Fugue_in_Void/ (very cheap!)
Fugue in Void by Moshe Linke

experimental exploration game

itch.io
Gravity Badgers is a neat, physics action game in space(!). It's over the top and kinda silly in style, and the gameplay... well, it's basically golf. Does some interesting things with gravity and warps and such.
https://store.steampowered.com/app/267060/Gravity_Badgers/
https://www.humblebundle.com/store/gravity-badgers
Save 75% on Gravity Badgers on Steam

Step into the space suit of valiant gravity badger Captain T Bayback as he ventures into the deadly depths of deep space to save his friends, family and the universe itself from the threat of the deadly Evil Honey Badgers, aka the Hellsett.

This Strange Realm of Mine is a retro Doom-like FPS blended with a psychological horror adventure game. A strange and surreal exploration of the afterlife that will frequently surprise.
https://store.steampowered.com/app/655730/This_Strange_Realm_Of_Mine/
Steamで90% OFF:This Strange Realm Of Mine

This Strange Realm Of Mine is a First Person Shooter mixed with poetry and psychological horror. Graphic style is 3D mixed with pixel art.

Greak: Memories of Azur is a gorgeous action-adventure of three siblings. Luscious visuals and polished gameplay, with interesting (but sometimes awkward) mechanics built around the three playable characters.
https://store.steampowered.com/app/1311070/Greak_Memories_of_Azur/
https://www.humblebundle.com/store/greak-memories-of-azur
Steamで80% OFF:Greak: Memories of Azur

『Greak: Memories of Azur』は、シングルプレイヤーのパズルプラットフォーマーアドベンチャー。Azurは、土地にはびこる奇妙なクリーチャーを操作する敵の脅威に晒されている。三人兄妹のGreak、Adara、Rayderとなって、彼らのユニークなアビリティを使い、共に侵略から逃げ出そう。

Goetia is a haunting game with a unique approach to traditional point-and-click mechanics and a very interesting story. You're the ghost of a girl exploring your cursed home. Quite good.
https://store.steampowered.com/app/421740/Goetia/
Save 90% on Goetia on Steam

Goetia is a point & click adventure where you play the ghost of a young lady. You are Abigail. Abigail Blackwood.

Neon Abyss is a weird and wild roguelite action-platformer. A wonderful variety of weapons and tool and bunch of bizarre enemies to kill. Crazy fun.
https://store.steampowered.com/app/788100/Neon_Abyss/
https://store.playstation.com/en-us/product/UP4064-CUSA18917_00-NEONABYSS0000000
https://www.humblebundle.com/store/neon-abyss
Steamで75% OFF:Neon Abyss

Neon Abyssは、ヘデスが編成した「グリム分隊」として、奈落の底へとダッシュする、スピード感あふれるローグライクなアクションプラットフォームゲームです。無限アイテム相乗効果とユニークなダンジョン進化システムを特徴とし、走るたびに新しいチャレンジがあること間違いなし。地獄を解き放つ覚悟を決めよう!

Monster Sanctuary is a monster training RPG with Metroidvania-style exploration. It looks great and plays well, very polished. A creative and fun game.
https://store.steampowered.com/app/814370/Monster_Sanctuary/
https://www.humblebundle.com/store/monster-sanctuary
Steamで75% OFF:Monster Sanctuary

メトロイドヴァニア風のステージでモンスターを育成しよう。サイドビューのかわいいピクセルワールドでモンスターを集めて育成し、バトルさせよう。

Neverending Nightmares is terrifying! Mechanically, this is a straightforward game, but the presentation is astounding and unique and breathtaking.
https://store.steampowered.com/app/253330/Neverending_Nightmares/
https://www.humblebundle.com/store/neverending-nightmares
Neverending Nightmares on Steam

Experience true psychological horror as you explore nightmares inspired by the creator's struggles with depression and OCD. The defenseless protagonist must avoid monstrous manifestations of what haunts his subconscious in his quest to wake up into reality.