Ive played quite a few (mostly at random mate's houses before or after goin out) in the past few months:

some really deep Final Fantasy game during wasting sessions after club/pub
Need for speed (the last 3 - underground 2, carbon and pro race)
The last pro evo (on on ps2, 3 AND xbox 360 ) - great with a few beers AND for solving differences between friends without stabbin people
the new GTA
new unreal tournament, etc, etc
BUT the game that is the best by far is this kinda short flash game(done in oldskool graphics style (remember c64 and Basic? ) to partially emulate 1982 hit Montezuma's Revenge (fukin quality commodore game) and the ending was most unexpected:

Its called psycosomnium and to avoid spoilers, i'll just post link to creator's website:

http://64digits.com/users/cactus/psycho1.zip

you only need arrow keys and z button for the whole game

i only have 3 clues:
1) level switch is supposed to confuse you, so use your brain and you'll feel good bout urself
2) some chracters have special clues with the z button (which also skips dialogue )
3) figure out how bees fly irl to fly the bee

have fun people

Oh and i gurantee that if you complete this game, you will love it and that shell will definetely really like this game