Yeah, pieman831 is correct. Any flash game with a save feature saves a .sol file onto your harddrive. CCleaner and other programs like that automatically delete .sol files unless you tell it not to in the options.
grr epic war is an 5/5 but thise... F!U!C!K its horrible, too much difficult i cant pass lvl 7 and 8 grrrr they spawn units who cost 1000 mana, 3 x second GRR
 "Warbears"){kind=icon}
 "GemCraft"){kind=icon}
 "Dungeon Defender"){kind=icon}
 "Epic War 2"){kind=icon}
 "Platform Racing"){kind=icon}