Patient Gamers

Superliminal.

The Stanley Parable.

Hyper Light Drifter would be my personal recommendation. My playthrough lengths ranged from like six hours on my first run to like, an hour and a half when I decided to try and beat it quickly? But the game is really gorgeous, and a lot of fun to play

I think Cocoon will fit in 10 hours. It did for me.

Ratchet and Clank (into the) nexus on ps3 is like a 5 hour game. It also nicely ties into the latest game if you've yet to play that

Most point and click adventures take about 6-10 hours in my experience. My favorites are the Monkey Island and Deponia games.

Digital - A Love Story and its not so close successor Hate Plus. These are digital novels. The former is a story set in a cozy 80s BBS network and the other in an archeological space ship retelling stories related to old Korea. Both touched me very much.

If you wanna have some nostalgia for 2000s era AOL chatrooms you ahould try Emily is Away Too

Resident Evil 7 & 8. Seven sets a new protagonist in a series reboot sort of way, so you might miss some Easter eggs and callbacks but playing the previous games AT ALL. Its meant to be an entry point in the series.

A bit old, but gold: Fate (the dungeon crawler one). It's a bit low-poly by today's standards, but it's so fun and has killer music, lots of spells and weapons, tons of interesting enemies and can be beaten in like 6 hours.

Ori

Neon beats is a really short that can be finished in much under 10 hours. I love it and replay it every now and then

Portal, Hyperbolica

Been a while since I’ve last played but I wanna say Earthbound.

I finished Capcom's Remember Me in just under 10 hours. I actually played through the whole thing in one sitting. It was a really fun game. I think about it a lot