BEYOND GODLIKE TIER
Dota 2 (even if I am currently in the middle of taking a break from it after consuming too much sodium)
GODLIKE TIER
Fallout: New Vegas (quite possibly the best RPG ever)
The Elder Scrolls V: Skyrim (288 hours and counting)
Team Fortress 2 (only good at Engineer and sorta okay at Soldier)
Bioshock Infinite (just an all-around great single-player experience)
XCOM: Enemy Unknown (what Fire Emblem should aspire to)
MONSTER KILL TIER
Mass Effect 2 (an actually good space RPG that fixed everything I hated about the original)
Fallout 3 (a pretty good RPG that New Vegas is superior to in every way. make sure to play this first or otherwise you won't be able to go back)
The Stanley Parable (I can't really talk about this without messing up the experience in some way)
WICKED SICK TIER
Civilzation V (aka "whoops the sun is rising i accidentally played this all night". also, gandhi is the WORST)
Metal Gear Rising: Revengeance (story was pretty stupid and had no idea how to hold a tone, but boss fights and general combat were great)
Counter-Strike: Global Offensive (even though I am really, really awful at this game)
Star Wars: Republic Commando (wow, allies that aren't complete idiots)
GOOD GAME TIER
Star Wars: Empire at War (modded with Thrawn's Revenge)
Star Wars: Battlefront II (rip LucasArts)
Portal (fun but not really the BEST THING EVER)
Portal 2 (fun but not as fun as Portal)
GOOD GAME SO FAR, BUT I ONLY STARTED AND CAN'T REALLY JUDGE TIER
Deus Ex: Human Revolution
Divinity: Dragon Commander
Planetary Annihilation
Company of Heroes 2
EH TIER
Awesomenauts (its a fun game just has a bunch of things that bother me)
Poker Night at the Inventory (it's alright. i don't really want my time back i just don't really have a reason to play it anymore. taught me poker though so that's cool)
Alien Swarm (i forget what even happened in this game)
I SHOULD PROBABLY GET AROUND TO PLAYING THIS TIER
Half Life 2
Bioshock 2 (actually on second thought, maybe I shouldn't play this)
Batman: Arkham City
Garry's Mod
The Elder Scrolls IV: Oblivion
Left 4 Dead 2
NEVER AGAIN TIER
Bioshock (my list of grievances with this game is just too long)
Mass Effect (only fun thing in the game was garrus, and he's in the sequel)
Supreme Commander 2 (okay, it's not actually a bad game, but i hate how it killed Supreme Commander's legacy)