Most addicting game of all time

[The Summoner of Leviathan]

Civ IV when I play steals my soul. I will play hours on end without rest or food. x-x;

I also am surprised to say that on one save file for FFXII I have almost 90 hours. Which might not be a lot for some of you, but for me it is. I more often than not play a game several times over than play one save file continuously. With that, I'd say KHII. Both the game play for those games are addictive. I actually sometimes just play KHII to go around and kill heartless for fun.

[Necronopticous]

Dwarf Fortress.

[Randgris]

The SIMS Collection...

[Dragonsoul]

For me it was Warcraft 2, the only other game that came close was Starcraft and I did play a ton of Starcraft. I would often play Starcraft for many hours a day but I remember spending the entire night playing Warcraft 2, it was my first real-time strategy game. I'm currently playing Warcraft 3 but don't like it as much as those ones, although it's great.

[Aerith's Knight]

AoE, Warcraft original, SoF2, dune 2, mario kart[SNES], zelda[NES], C&Cenerals MP

[Spuuky]

Defense of the Ancients (a Warcraft 3 mod) is unequivocally the most addicting game. I addict to games easily, frequently playing them pretty indefinitely, but that game... everyone who plays it can't stop playing it. The world is fortunate that it isn't really that well-known, because I can't imagine what would happen.

[Breine]

The Sims 2. It eats my soul.

Yeah, every time I start a new file in that game I'm playing it for hours on end. Also, when playing through Final Fantasy IX for the first time I was very addicted to it.

[Gilghamut]

Oblivion comes close, imo, but however, I feel the most addicting game of all time hasn't been created yet.

[KoShiatar]

To me, it is Bust-A-Move 3 (arcade version) and Diablo II. I reinstalled it just recently and it's like a drug. O_O

[Bakamut]

I think that World of Warcraft is notoriously addictive, likewise lots of mmorpgs... I found Final Fantasy games to be incredibly addictive, I couldn't take my eyes off the screen for days except to eat and sleep a little.

[I Took the Red Pill]

Civilization IV.

[Lone Wolf Leonhart]

The Legend of Zelda:Ocarina of Time (N64)

Final Fantasy IX (PS1)

The Legend of Dragoon (PS1)

[Flying Mullet]

Diablo 2, hands down. I could play it for days. DAYS!

D2 has my vote too. Not only can it addict me for days but I'll find myself coming back to it again after a couple of months away from it and getting addicted all over again.

[Nominus Experse]

Diablo II

This game makes divorces happen.

[Moon Rabbits]

Dwarf Fortress.

So I've heard! I've yet to try this game out yet, though.