in no particular order:

• a dark souls: yeah they have a rep for being really unfriendly, but I think that's partly because you kind of need to learn how to enjoy them, but if you do "get" them, they're really satisfying. I'd recommend 2 because it's the most accessible (and it's the best, forget the haters) but I've heard bloodborne is also very good. Probably a try before you buy situation though because if you don't get them, you don't get them. Each one usually lasts about 20-30 hours in my experience.

• Dead Cells: it's just a really fast and fun 2d action platformer with really slick combat, lovely art and just a general good time. It's one of those "roguelikes" the kids have nowadays so no real "completion", but you can play it in very short bursts or for longer. I'd also probably suggest Risk of Rain and Enter the Gungeon for similar feelings, they're all very very good, but Dead Cells is probably my fave and I'd be doubling up on games that fill a very similar role.

• Shadowrun: Dragonfall is the best single player story based videogame in existence. Shadowrun is one of my favourite settings, and it's one of the very few RPGs I've come across that does difficult moral choices correctly: a lot of the time it's whether you want to do a shady thing or not get paid, but it works well. And a lot of the time doing the nice thing makes your job a lot harder. Takes maybe 15 - 20 hours? Idk because when I finished it the first time I immediately started a new save and began playing again.

• Gotcha Force: this is a rare 2003-ish gamecube game and there's a reason it commands pretty high prices on places like ebay. It's a really fun and cute arena shooty type game where you collect toy-sized robots and have them fight. I love it! Takes about 12-16 hours to finish a playthrough, there are 8 different playthroughs with slightly different story bits and pieces, and the collection aspect can keep you going for years if you fancy.

• Audiosurf: I prefer the original over 2, but it's just a fun and relaxing game that I play a lot when I want to listen to music more than just background noise but also do something at the same time. No playthrough time, you use your own songs. It's great and I've been playing it for like a decade at this point.

• battlerite: just, the best videogame ever made. it's a top down 2v2 or 3v3 arena game with vaguely moba-esque gameplay stripped right down to just fights. I love it.

• dawngate: rip :(