My most played game would be Call of Duty 4, I've got 836 hours (little under 35 days) on the multiplayer side. Add the singleplayer in and it'd be higher (I can't tell you how much higher because it's been so long since I've beat the campaign I don't remember how long it took to beat it). If we're talking about singleplayer type games then it'd be Pokemon Gold at 457 hours. Truth be told I thought Diamond would be my most played Pokemon game... but I only have 418 hour on that with only 7 badges.
Can't say I have ever kept track of the exact time but I know that the game I have played most and have clocked up alot of hours on was Rainbow Six Vegas 2, played every night straight for around 6 - 8 hours and if it was a night I couldn't sleep that would clock up to around 12 hours, played that game for around 8 months every night so I must have clocked up ALOT of hours, Shame there isn't an option on R6V2 to see how many hours played as that would be great to see just out of curiosity.
I only remember my playtime on Diamond Version, and it was 999:99. If it could go any higher than that, it would probably be somewhere around 1300 hours or so. Yeah, I was pretty stuck to the game. xD;
Uhm..over 1500 hours on MW2..:P That's all in multiplayer, I used to leave it open all the time and played the heck out of it for the first three or four months I owned it. I've never been so addicted to a game haha.
I think in Pokemon Emerald Version, my playtime was around 750-800 hours. Right now in Black Version, I've reached 600 hours.
Mine would have been Pokémon Ruby Version probably, which was around 360 hours if I remember correctly before I went and lost the game. Although tbh most of that was spent sitting around in My PC thinking "hm what to train". My goal was to get a Lv 100 Milotic, but I lost the game when it was 82 or so. ;;
