WSIB if I'm just feeling burned out from competitive gaming/games? Details inside

Portal 2 was a great game

planetside 2

One person said to read a book, i reccomend it. I'd reccomend the name of the wind by patrick rothfuss :) And its sequel. Its fantasy setting, the writer pretty much made it big on his first book "the name of the wind" so that should credit how good it is :)

You should buy FTL!

It's a really fun game, I've been playing it a lot lately.

Alice Madness Returns

It's just such a great game from an audiovisual standpoint. (And otherwise too)
Same goes for Prince of Persia 2008

These are strickly single player.

Games I've found soothing/relaxing: Portal 1/2, Sol Survivor, Trine 1/2, RUSH (or really, any Two Tribes title on Steam), QUBE, Dear Esther

Games I've found extremely immersive but aren't necessarily competitive: Mass Effect 1/2, Portal 1/2, Terraria

Also, Civilization can be pretty relaxing to play, but it can also be competitive if you let it be. Same goes for both capybara Steam games which I found very relaxing. So long as you play single player there should be real no sense of competitiveness

Portals, Half-Lives, Postal 2 (not portal), Battlefield 2/3, GTA IV Multiplayer, GTA SA Multiplayer

I think the most relaxing games, or at least those who lack pressure and a competitive edge, are puzzle and adventure games. I personally really like point-and-click games because they combine both elements with a fun story.

The Broken Sword series, Toki Tori and perhaps Orcs Must Die. The latter is a lot of fun (tower defense/shooter fusion). A RPG can be good too, like Thief or Mass Effect, etc. You could also go for one of the Total War games. But I think the most relaxing and games that don't demand you give it your all, are puzzles and adventure style games.

Play adventure games, Nozzle. You're your own enemy on those games. And if the game is really, really good, you'll end up having an awesome experience. It's like an interactive movie.

Actual games, I'd recommend you LA Noire as being of the best games I've ever played in my life. Every single goddamn location of the game is unique. The level of detail of LA Noire is so high I sometimes just stopped played to admire it. The story would be a blockbuster if carried to a movie. It portrays the grim reality.
I miss playing as Cole Phelps, a LOT. I was so happy when Team Bondi announced Whore of Orient...

Other actual games you can get, are the Wadjet Eye's Resonance or Gemini Rue.

And if you want to go old, you can't be wrong with the Lucasarts Adventure Pack: http://store.steampowered.com/sub/2102/

From the games you already own and haven't played:

• Tropico 4
• Rome Total War
• Mount & Blade Warband (don't touch the multiplayer)
• Jolly Rover
• Gratuitous Space Battles
• GTA III, Vice City, San Andreas
• Deus Ex
• And Yet It Moves

If competing against the AI doesn't bother you, I can also recommend Depths of Peril.

Outside of your games list, I'd recommend SimCity 4. Though I would appreciate it if you didn't give any money to EA as a result of this.

From your library I'd suggest giving Deus Ex a try, in addition to Painkiller, Fractal (surprisingly relaxing), GTA San Andreas or Vice City, Cave Story and maybe Psychonauts (but personally I don't think it's THAT much of a classic and pure awesome as a lot of other people). From Steam you should give KOTOR or Jedi Outcast a try, but Jedi Academy's multiplayer is more like an interactive chatbox, it's so much fun and it's only competitive if you want it to be. Outside Steam, and this is what you should probably do before all, play Carmageddon 1 or 2. Not TDR 2000, and God forbid any of the trash ports and versions that they shat out for consoles. The first 2 PC games are something I can hardly get enough of.

Chrono Trigger, Monkey Island series.

Motherload or any of its copies,
like Utopian Mining or Mars Miner.

The Space Game and The Space Game: Missions

Anything Creeper World! And at Kongregate