Avernum Escape from the Pit. I got the Geneforge series as part of some bundle, and thought it was great but I needed something more ...traditional. No nostalgia for me! I purchased Avernum EftP and Avadon The Black Fortress around the same time. For whatever reason I played Avernum first, and it really stuck with me. I wanted something more however, and recently I put in 38 hours into Avadon and decided to buy the rest of the series. After beating the Black Fortress I took a long break. I played all kinds of other RPGs, Dragon Age, Baldurs Gate, Neverwinter, ToMe, Wasteland 2, Fallout, etc. etc. etc.
....for whatever reason, Spiderweb makes the perfect games for me. Fights are fun, epic, and don't rely on a gimmicky system that rewards cheesing said system to beat encounters. I feel like my adventurers are beating epic bosses with their own skill. Not a wand of summoning that messes with the enemy AI. (Looking at you BG1. :\ ) Also, they are so dang relaxing! I never played Exile. Bg1, Daggerfall, and Pools of Radiance where my first RPGs. Avernum especially takes me back to those days. Mass Effect and Dragon Age have cool worlds, and Fallout has epic characters and ideas, but only Avernum appeals to me now that I'm getting to the ripe old age of 30. I love how open it is, I love the writing, and I love the combat.
...woops! Started rambling. Gotta get some sleep. Anyway Avernum Escape from the Pit was my first Avernum game and I LOVE it. I played Geneforge so I imagine after I beat the 3 remakes I'll just buy 4-6.