The Witness just starts right back off where it finished unless you figure out the secret ending.
Returnal does this with several of its “endings”, but I haven’t been spoiled on all endings so I can’t say if it strictly fits.
One of Bastion’s two endings is a global reset.
I Was a Teenage Exocolonist plays with this in some interesting ways.
Dark Souls and Dark Souls 2 both have maintain the status quo endings.
I don’t like the taste of pure water. Filtered, bottled, doesn’t matter. It tastes bitter and metallic and it always takes effort to choke down.
I keep a bottle of unsweetened juice and use a splash of that to add the bare minimum of flavor I need to be able to enjoy drinking it at home, and when I’m out and about I just drink it and suffer.
Void Stranger is a relatively recent one. It’s a Sokoban style puzzle game with layers of puzzles and a ton of hidden depth.
It took me 50 hours to feel like I beat the base game and I haven’t even touched the post-game content they added after release. I have a folder full of text files with notes and clues and puzzle attempts and one of the best puzzles involved taking several screenshots and stitching them together in an image editor.
La Mulana is another one to check out. It’s a metroidvania heavy on puzzles and exploration that’s actively hostile toward the player. It’s an exercise in frustration and every inch of progress is measured in blood. Every bit of information is important, and there’s a lot of information to untangle. I haven’t come close to beating it yet and my notes from just the first few floors are extensive.
About 42 hours. I start getting hallucinatory sparkles at roughly 40 hours and usually go to bed then.
Only done it a few times in my life, but the most memorable one was while in the middle of a 5-day LARP. We were going hard, I was NPCing, and I started seeing shadows in the middle of a fight. I took that as my cue to dip out and crash.