To the Moon for me
although, I'll admit its the only "indie" game I have played. Still enjoyed it immensely however
Oh god, FTL was digital crack for a while when I started playing it.
Same thing happened when I started playing Dungeons of Dredmor, too. Maybe Roguelike games just have a habit of doing that to me, even though I'm usually not that much into the genre.
Legend Of Grimrock- Its like being back on my Commodore Amiga 500 playing Dungeon Master, Eye Of The Beholder, Black Crypt etc. Retro never felt so fresh and new.
Avernum and Geneforge series- Very detailed old school rpg games with excellent writing and intricate gameplay which goes very smoothly thanks to some excellent design mechanics. Reminds me of Realms Of Arkania and Star Trail but with a much more well paced system.
Arena Wars 2- Has that old school indie sci-fi strategy game feel like alot of similar games i played on the Amiga 500 such as Battle Isle and Front Lines. Wish i could control a bigger army though at the moment it feels a bit like the first Command And Conquer.
Picked up all of these over the holidays on STEAM during their holiday sales.