One man's shit is another man's treasure. Team Fortress 2 is probably one of the most addictive FPS for me. I simply despise most other FPS, simply because of the in-depth tactical feel to it. I wanted a game that spices things up, and I got my wish. I also love Oblivion for the number of time you can just waste fucking around with people. There's SO MUCH to do, it's unbelievable. So many sidequests, faction quests and even after that, (thieves) can go steal from the biggest places in all of Cyrodiil. I started out stealing from weapon shops to get some gold going, then once I got a good set of armor, I head for the castles.
Age of Empires 2 its a pity they closed up the servers, now I can only play multiplayer with LAN still kicks ass though
I've been playing PC games forever and it is hard to nail down just one favorite lol. Sid Meier's Alpha Centauri- I don't even need to explain this one it is so damn awesome. Anyone who played it knows it kicks ass X3/X3:TC- Fun space sim with combat, trading, and building elements. Morrowind- I have never actually beaten the story because the game is so fun I never get around to doing anything but murdering guards and running around being a nuisance. Civilization- It got me into PC gaming and it is still fun today, I'm kind of including the whole series in here because I enjoyed them all. Except revolution because it was a dumbed down snoozefest for consoles. Its only merit is that I can play Civilization on my DS on the off-chance I somehow forgot my laptop and somehow have my DS with me.
Minecraft most definitely for the endless possibilities. What you can do is limited only by your imagination, and indulges my little kid desire to build cool stuff. Its also still under development, so new features are added pretty frequently.
Gosh there are so many but the Mass Effect games are probably my favorite. Bioware is my favorite game developer.
Sniper it's simply the best shity game ever.... features: hundreds of bugs realy shity dialogues you can fly
Starcraft: BW because it's probably (if not) the most balanced RTS out there. I went out and bought SC:II only to see that the entire game was newbie friendly, and everything was basically made easier (auto split, smarter AI, larger control group) and if you're wondering, I did migrate back to BW, unfortunately, there aren't many players here anymore