Well, hello~

First, BG2 has a very good storyline with extremely well-developed characters, meaningful choices, and excellent writing. Second, the combat is extremely tactical, and despite being difficult, the startling amount of options you have tactically makes each battle loads of fun to not only prepare for, but fight. BG2 is Bioware's opus, and it's a shame that Mass Effect gets all the love when it couldn't hold a candle to BG2's greatness.

BG2 is a masterpiece of atmosphere. The soundtrack, visuals, and voice acting are top-notch, and this game can be pretty damn dark, even gruesome, at times. Plus, you get to be a god. Get it.

Other great games are Deus Ex, System Shock 2, X-COM: Enemy Unknown, Planescape: Torment, Fallout: New Vegas, The Witcher, and Vampire: The Masquerade-Bloodlines.

I heard nothing but good things about Spec Ops: The Line, To The Moon, Tomb Raider, and The Walking Dead too.