Thief 2:The metal age

Dungeon Crawl Stone Soup - a very evil little roguelike with a very nice tileset...

Alan Wake & Batman arkinam city.

I have been playing:

Alan Wake (I'm so glad I purchased it off GOG so worth the 14.99 I spent)

Ultima VII (Again, I never played the Forge expansion originally so I'm looking forward to it)

Neverwinter Nights (mostly just online modules with random character builds)

Under a Killing Moon (I loved this game when I got it for Christmas years ago, I am happy GOG made it possible to play again).

Binding of Isaac (I swear I'm addicted to that game, I love rogue-likes and this game really does the genre proud)

The Walking Dead (I kind of lost interest in the books just before they met the gov't, but I find this game has rekindled my interest in the series).

I am so looking forward to getting going on Torchlight 2, Diablo 3, and Lolipop Chainsaw when they hit.

Might and Magic 6 - I have sworn to finally kick myself into finishing it.

On a rotating but regular basis: Guild Wars, Spellforce, Avernum: Escape From The Pit, and Legend of Grimrock.

Heroes Chronicles - basically extra campaigns for HoMM3, who can say no to that?
Diablo 2 Lord of Destruction - still a great game
Samurai Shodown Anthology - classic Neo-Geo fighting series
Resident Evil 4

Dragonshard - last chapter of The Order of the Flame - really enjoying it, might even do the Lizardfolk campaign straight after...

World of Tanks
Eschalon Book II
Botanicula
Alan Wake
Superbrothers: Sword & Sworcery LP
Borderlands

I have installed much more but these are the ones I've played this week

How's Superbrothers? Another one I've heard mixed stuff about.

I love it :)

but I also love The Path, Dear Esther and some other rather obscure games... I really like the atmosphere, absolutely adore the soundtrack (which I bought before the game and listen to almost every day :o), and even though it's rather slow game and isn't even that long, about 5-6 hours I'd say, for me it was money very well spent...

(also, I've bought the game just because of the soundtrack and some screenshots, I didn't even know what genre it was until I've started playing... perfect :D

EDIT: added a link to my favourite track from it

Does it actually have gameplay besides walking in a straight line?

Warlock Master of the Arcane
Legend of Grimrock

not really... there's walking (mostly in one direction), a sort of minigames (where you search the screen), some battles (quite hard), and tons of texts (really funny :o)

That still sounds better than most linear art games. And it's funny? That's key, imo, because that presumably means it's not pretentious.