Please note that these aren't in any order, just in the order I thought of them.... except AC and EVE, they are my top two favourite games of all time and always will be.
-Assassin's Creed 1, 2, B and (yes, before it's even out, because I am such a fan girl I know I will love it) R
-EVE Online (well, EVE is my mistress and I am happily her *****, my go to game. I love playing it and despite taking breaks from this game every now and then I always go crawling back.)
-Diablo 2 (the game that got me into PC gaming)
-Minecraft & Terraria (I like to build things, basically the same games (so will only count as
one), one is 1st person the other is like a platform game)
-Forza Motorsports (all of 'em, cos they're all essentially the same game, just with better physics, graphics and cars with each release)
-Spyro the Dragon (original PS1 game, the game that got me into console gaming)
-Rock Band & Guitar Hero (I like to pretend)
-Halo: Reach (If you had asked me a couple of years ago I would have said Halo 3, purely for the online multiplayer)
-Pokemon SoulSilver (only because it's the only one I've been able to play in a while, I love all of the Pokemon games, but this being the most recent one I've played at length makes it onto my list)
-Unreal Tournament 2003 (another one from when I was younger, my favourite release of the game, I still play it now, sometimes for hours at a time)