Haven't beaten any game yet, played a bunch of Thief fan missions, Fallout New Vegas with mods, and Dirt2 online on PS3.

Finished:

Sunset Overdrive - PC

Sonic CD - PC - Savior of the Planet run.

Shadow of the Tomb Raider - PC

The Messenger - NS - Picnic Panic DLC

Tangle Tower - NS

Detective Grimoire - PC

Disney Princess: My Fairytale Adventure - PC

Jet Set Radio - PC

The King of Fighters '97 - NS

+ Real Bout Fatal Fury - NS

+ Samurai Shodown III - NS

+ Waku Waku 7 - NS

Finished Games: 

• Nier: Automata (PS4) (9.5/10) One of the best stories I've ever experienced in video games with wonderfully written characters, combined with a huge amount of gameplay variety and a fun and fast-paced combat system, which had been the weak point in Yoko Taro's earlier works. Easily going to make my top 50 games of all time list this year.
• GRIS (PC) (8/10) An absolutely gorgeous 2D platformer, easily one of the best looking games I've ever played, with a beautiful soundtrack layered on top of it all. The actual gameplay is quite simple, but solid, and there are some very satisfying moments of platforming in the game, even if none of it is all that challenging. It is a very short game, but every moment I spent with GRIS was thoroughly enjoyable.
• Middle-Earth: Shadow of War (PS4) (8/10) A solid open world game made better by the nemesis system that did the same for Shadow of Mordor. The gameplay is fun, the world has a lot of nice variety to it, and although the story is kinda silly in the context of the books, but as a kind of non-canon side thing it's fine enough. Gets a bit grindy at the end, which soured me a little towards it, but it wasn't too bad. If the epilogue had been like in the original release before the balance changes and the removal of lootboxes I probably would have not been nearly as kind towards the game, but as it stands now I do recommend Shadow of War. 

Currently Playing:

• The Banner Saga 2 (PC)
• The Witcher (PC)

+ Nier (Xbox 360) - Ending B

first update:

Games I've finished in 2020:

• The Banner Saga (Game Pass)
  
• The Banner Saga 2 (Game Pass / GwG)
• Rage 2 (Game Pass)
• Battlefield V (EA Access)
• Batman: The Telltale Series (GwG)
• Sea of Solitude (EA Access)
• FIFA 20 (EA Access)
• Zombieland: Double Tap - Road Trip (Free Play Days)
• DYING: Reborn
• Your Toy
• Wandersong (Game Pass)
• Assassin's Creed Odyssey
• Shaq Fu: A Legend Reborn

Currently working on:

• Assassin's Creed Odyssey DLCs
• A Plague Tale: Innocence (Game Pass)

Already spent 75 hours on Odyssey this year which is why I couldn't complete more games. There's not much left to do though.
Also completed the Shadow of the Tomb Raider DLCs but I'm not going to list it here.

Code of Princess EX - NS

In Progress:

1. Shenmue I (PC)

StarCrossed - PC

Beaten:

1. Iconoclasts (Switch) - This game is kind of billed as a metroidvania, even though it only barely meets that requirement. Still, a great, mostly linear, action platformer with a killer story. We're talking RPG quality story. Almost straight out of a mid to late 90s JRPG, with its deeply political and religious overtones.

2. Phantasy Star (Switch) - Great old school JRPG.  I never had Sega systems growing up, so I never really got into these.  But I have the other 3 games on Steam, so I'll start working my way through the others soon.

3. Shenmue I (PC) - Had a great time with this one. I know it's pretty archaic to you new schoolers, but it was a lot of fun.  Felt like this cheesy kung fu movie with terrible voice acting.  It was glorious. Looking forward to the second one.

In progress:

1. Blaster Master Zero 2 (Switch)

2. Either Blasphemous (PC) or Nioh (PC)

An update:

Beaten:

Kirby Star Allies: Second time playing through this game with my daughter, but this time we got everything in the main adventure mode.

Jamestown+: Playing a shmup with a 6 year old is more of an encumbrance than anything else, so after trying the final level dozens of times and only coming close once or twice, I decided to just play the level solo just to be done with it. Really enjoyed this one. :)

CodeVein Demo: lol, but I technically did finish the demo for this game. If it wasn't full price, I would think about picking it up, as the demo was a lot of fun.

Currently Playing:

Death Stranding: I played this a ton during the first couple weeks after release, but then I fell off the wagon and didn't get back to it for a month or so. Recently, however, I've found myself putting quite a lot of time into it, despite barely progressing the main quest at all since the new year.

What I like most about this game are the surprises along the way. Very high quality content, and putting the extra effort in to do side missions pays off well (oftentimes in the form of new items or equipment that you wouldn't have gotten otherwise). Given that I haven't exposed myself to very much information about this game, I have little knowledge of how far I am compared to how much is left (and I don't really want to know either). There are also several mechanics that I'm unsure about as well, but I imagine that at some point I will make sense of it.

TemTem: Made it to the second island.

Control: Haven't really played at all since, but I should really pick this back up again, as I was enjoying it immensely.

Same with CrossCode.