Quite some. Most are construction/simulation games as they are naturally endless. Even though usually, except Anno 1404, they don't track time I know for sure I've topped 100 hours in these games, possibly even up to tenfold on some like Anno 1602 and Galactic Battlegrounds. A couple are even more. If I'd guess my hours on both SimCity 4 and Rollercoaster Tycoon 2, I'd say it's probably up to about 4-5000 hours. Though those four are by far the highest. At at least a hundred hours are:
Anno 1404 (Dawn of Discovery)
Anno 1602 (1602 A.D.)
Call of Duty
Guitar Hero III
Mario Kart 64
Medieval: Total War
Pokémon Blue
Rollercoaster Tycoon 2
Rome: Total War
SimCity 3000
SimCity 4
Sim Tower
Star Wars: Galactic Battlegrounds
Theme Hospital
Plus, if you combine playthroughs or different versions, I've also got over 100 hours on these:
The Legend of Zelda: Ocarina of Time
The Legend of Zelda: Twilight Princess
Star Wars: Knights of the Old Republic
Star Wars: Knights of the Old Republic II
Super Mario 64







