Damn...What did I finish in 2021? Fortunate for me that Steam keeps track of what I've played otherwise this list would be much shorter.
Ashes 2063 (Doom 2 mod) 
Cool post-apocalypse mod with high quality assets. Quite fun but it turned out that standard difficulty is not very difficult, would've been a better idea to have gone one notch higher.
Clone Drone in the Danger Zone Cheap game about robots-humans fighting robot robots. I bought it for some fun arcade gameplay and got exactly that.
Synthetik:Legion Rising 
Cheap game about robots-humans fighting robot robots. Once the game gets going it's a real rush of the kind I much enjoy: bullets flying, dashing everywhere and spraying lead down range. Only 4 trolls as I find the V-reality level to be annoying and RNG weapons occasionally means I can't get any I actually like from time to time.
Risk of Rain 2 3D Rogue-lite shooter. Unlike other Rogue-lites I've played whether you win or lose seems to be determined 70% by player strategy and planning and 30% pattern recognition and reflexes which means I'm not so good at it, other games are more of a 50/50 balance. I like it though and I also enjoy Risk of Rain's melancholy kind of writing.
Monster Hunter: World Monster Hunter is a specific kind of game that you either like or you don't. Fortunately I like it so it makes me happy. Having to pay money to edit your character is a bit shitty however.
We Were Here, We Were Here Too Atmospheric, asymmetric puzzle games for 2 players. The gimmick is that the players need to communicate over a radio to solve puzzles, we used Steam's voice chat instead as it was more straightforward. The first two game's puzzles are not too complicated which is good for multiplayer I reckon, quite fun.
We Were Here Together 
The third game has several pain-in-the-ass puzzles where 80% of the difficulty is trying to figure out how the puzzles actually work. Even using a guide it still takes some time to wrap your head around. Fun sometimes, a pain other times.
Inscryption Story based rogue-lite card game kind of thing. Gently eases you into the mechanics which is nice as other card games throw you in the deep end in my experience. Being a rogue-lite the game is unbalanced by design and some people got annoyed by where the story went. Personally I like it all quite a bit except near the end where the gameplay starts dragging on.
Max Payne The game likes to keep you on your toes with ambushes aplenty and I like the silly comics. Good stuff. Would be 5 trolls but it's a bit buggy at times and the screaming baby levels are a pain.
Bad North A simple rogue-lite RTS game. It's not deep or long but it's some nice fun while it lasts.
Warhammer: Vermintide 1 & 2 Not much to say on this, my brother and I completed all the levels and had a nice time. The RNG drops are eh but don't detract too much and I enjoyed the atmosphere and the characters. We didn't stick around to play on ultra hardmode or whatever though.
Primordia I played a few point & clicks this year though they aren't quite my thing, this one I liked. I didn't get stuck often which likely means the puzzles are on the easy side.
Magicka Spam overpowered spells with friend(s), good fun.
Magicka 2 
You can no longer spam the overpowered spells, I disapprove. Still fun tho.
The Blackwell Bundle Point & click games where a ghost and an introvert girl solve crimes after everyone involved has moved on except for the dead. I got stuck on puzzles because of completely missing something or other quite a few times which is meh. It's alright otherwise, I like the chatter between ghost and girl. The ending is depressing.
Control The background lore is intriguing, the story is fucking boring and the gameplay fun enough to finish the game.
The Longing Game where you must wait 400 days before you can wake up your stone king. Runs in the background and doesn't actually take 400 days to finish, more like 2-3 months. Is alright, all you do is check in on it every now and then, do some stuff, and then close the game and do something else. Profound philosophical revelations about the nature of time and boredom not included.
Noita Another rogue-lite, in this one you're a 2D mage figure descending through caves, blowing stuff up and trying to make overpowered wands. There's arguably more content in the game that can be skipped than there is content that you need to go through to win, so there's a lot of incentive to look around. When the game gets going you're having a good time but it's very easy die and unlike some other games starting over fucking sucks, it makes me want to play something else rather than try again.
Unavowed Supernatural point & click adventure game. The puzzles are easy, the gameplay tedious and a meh story with an unvoiced protagonist. I was engaged enough while playing it but I don't think it was worthwhile in the end.
: Piss easy. Jank controls. I'm not sure why this series has fans if this is considered one of the better games. Beat in a couple of hours.
-game of the year. And probably the best Metroidvania I've played so far.
