What games did you finish multiple times?

Parasite Eve II on PsOne. 32 times

Mass Effect series, 4-5 times each...yup

Mass Effect 1 and 2, Dragon age Origins, The Batman Arkham games, Lego Batman 2, Borderlands 1 and 2, Torchlight 2, Dishonored, Thief, Splinter Cell: Chaos Theory, Skyrim, Fallout 3, Fallout New Vegas, Bioshock 1 and 2, Fear, Doom 3, Hitman: Silent Assassin, Portal 1 and 2, Half life 1 and 2 and episodes, Vampire: The Masquerade- Bloodlines, Crysis and Warhead, Resident Evil 5, GTA 4, Return to Castle Wolfenstein, Tomb Raider: Legend, Goldeneye 64, Duke Nukem 64, Halo 1, Ocarina of Time and all of the NES Mario games. Probably more, that I can't remember right now.

MW2

Uncharted series

Halo CE PC
Halo 2 PC
Half life series .

• Star Wars Kotor (1 & 2)
• Mass Effect (1 & 2 several times, 3 like twice)
• Batman Arkham Asylum/City
• Borderlands 2
• Bioshock
• ALL THE HALF LIFES
• Halo
• Fallout
• Timesplitters
• Portals
• Dead Rising
• Jedi Knight
  and probably many more.

too many to count xD but most of them where on the ps2 :P

I finished the good old Tony Hawk games multiple times.
Prince of Persia: The Sand of Time 2 times on PS2, one on PC.
Half-Life², Portal 1, Portal 2, Batman: Arkham Asylum, The Inner World, DLC Quest, LEGO Lord of the Rings, LEGO MARVEL Super Heroes, Botanicula, Mark of the Ninja, Dust: An Elysian Tail & Guacamelee each 2 times (second time for the achievements).

Chrono Trigger (SNES) x4
Dragon Force (Sega Saturn) x3
Gothic 2 (PC) x2

Infamous, LA Noire, Prince of Persia T2T, GTA SA, GTA4, Mafia 2,COD MW1 and 2, BF3, Portal, Crysis, and L4D/2

assassin's creed brotherhood - played it the whole like 6 times
also portal 2

Call of Duty (& United Offensive & 2).
S.T.A.L.K.E.R. Shadow of Chernobyl (& Clear Sky & Call of Pripyat).
Command & Conquer: Red Alert 2 (& Generals & Zero Hour).

MGS1 is the one I've finished the most times. I lost count after 30

Dishonored ( Finished 4 times, easy, medium, hard, very hard, all no kills. ) Portal 2 ( Finished 3 times of campaign, 2 times of multiplayer ) Borderlands 2 ( Finished 2 times ) aand that's about all the games I thought were worth replaying.

The list of computer games I've replayed multiple times is too long to post here. (You can do a lot of gaming in 35 years.) Unlike many of today's games (and gamers), the main focus of any game used to be on its replay value. It was expected that you would "beat" the game more than once. Even the stand-up arcade games had an end which, if you were really good, could be reached on a single quarter.

But times have changed.

Anyhow, one of the games I replayed most was Diablo II LOD. I played it from launch day up until Diablo 3 came out and must have "finished" it hundreds of times. Another is Neverwinter Nights, a game with hundreds of mods, each one of them a different game. I still expect to replay my games when I buy them, so I steer clear of those which are only good for one playthrough. Old habits die hard, it seems....

Not the only one, but I want to say that I've beaten Onimusha 3 several times, this game is awesome!

Castlevania: Symphony of the Night

Half Life

Metal Gear Solid 1 and 2

Diablo

Manhunt

Hotline Miami

Populous 3 the beginning finish it like 30times:D

Deus Ex HR and multiple playthroughs of the STALKER series

I just cant seem to play a game after beating it unless its really good. So Ocarina of time about 20 times.

Resident evil 3 in the ps1(I have all the epilogues in my memory card).

Bastion

Resident evil 3 and final fantasy 7/8/tatics

Just about every fighting, shoot 'em up, beat 'em up, strategy, and puzzle game that I've finished once I've continued to beat multiple times.

It's a very long list. A few would be Max Payne 1-2, Half Life 1-2-Espisodes, MOHAA, Portal 1-2, CoD 1-UO-2-4, Mass Effect 1-2-3. But as I said, there are many, many others. Those listed here are the first few I could think of.

minesweeper