Last game that pleasantly surprised you

Thomas was alone for me. I was surprised how much I enjoyed that game.

"Lily looking through" pleasantly surprised me.

Remember Me. I got it from a trade and had no idea that it existed before that point. The game was actually pretty fun to an extent.

Long Live The Queen. even bought it after trying non-steam version after that great TB research video :)

Im going to say RUST. Not because it pleasantly surprised me but because it shocked me on how HORRIBLE the community is.
Before you bash me, I've punched over 30 hrs until I finally gave up. One of the worst gaming experiences ever.

A Virus Named Tom, from the Humble Indie Bundle 9, I saw some bad reviews about it before I got it, but after playing it I find the puzzles rather interesting and am liking the game so far.

Bastion, I was amazed by its amazingness.

GRID 2. I missed some solid racing game for a really long time and now we got GRID 2. That's how NFS should've been done.

Super mario galaxy 2, Super mario 3d suck since it was too ez. I thought galaxy will be the same, I was pleasantly surprised that it is hard

Bulletstorm, looked pretty interesting so I picked it up and spent 2 weeks playing through it 5 times, super fun game, definitely would recommend.
Bioshock 2 I had heard nothing but bad about, and I ended up liking it more than the first, not sure about the PC version though, it could be worse.

Max Payne 3 and Deus Ex HR didnt expect them to be as good as they turned out to be, especially Dues Ex

Journey of a Roach.

Got it from the Daedalic Entertainment HB. It's really cute, and I loved it. The gameplay too. The only downside is that's it's too short. :)

Coin Crypt , i just wanted to play a bit only to get my cards and... god damned this game just sucked me into it :)

Not a PC game, but I bought Animal Crossing: New Leaf after being told repeatedly how good it was. Even with the hype, it's better than I thought it would be.

As far as PC games go, I had the same experience with Starbound. I was never super into Terraria (more of a Minecraft gal) and I figured it would turn out to be overhyped but man, it's really fun.

Pinball FX2. I've never really been a pinball person but was surprised by just how well it is done and consequently how much fun it is.

A New Beginning - Final Cut. I play it on a friend's account, and when i come back to my house i bought it..
I loved, thought it was a game more, but its HISTORY, puzzles, really, I loved it.

Aliens: Colonial Marines

Playing it right now. People were saying it's terrible but it's a good shooter lol, seriously. I have no idea what's wrong with it. It's pleasant.

Magicka.

Tomb Raider. I never really enjoyed a TR game before, I always thought the story and physics were lacking or overblown. I finished TR at 95% and enjoyed it immensely. The characters were very human and the game play not too repetitive.

Hotline Miami. I knew it's quite a cool game, but I wouldn't have expected it to be THAT cool. Definitely in my top 10 video games list from '97 until now.

Enslaved got a PC Port!?! This game definitely surprised me when I bought it second hand at a flea market, 4$ for xbox. Had never heard of it and it was incredibly good. Definitely going to purchase it for steam when I get the chance!

Dota 2.

Legendary.

I'd say the last game to pleasantly surprise me was either Thomas Was Alone or Enclave... Though Enclave also unpleasantly surprised me after a certain point as the difficulty jumped up ridiculously for what seems like no reason.

For Steam/PC it would be Little Inferno, it proved to be hilarious and super fun, with a somewhat surprisingly touching ending. I game on a lot of platforms so, I have to include Tear Away for the PS Vita, as it was a beautiful game. For my 3DS I'd have to say LoZ -Link Between Two Worlds surprised me, mostly because it surpassed anything I expected. I knew it would be good, great even, but I was not expecting it to be as spectacular as it ended up being.