I just shot my game ... What I did: Had mods loaded, firetuner open and then changed the "Name" from an InGameUIAddin EntryPoint in a modinfo. This lead to immediate crash and now I can not start the game anymore (crashes after loading screen, before main menu). Tried to solve: I deleted whole cache folder, but still does not work. I also checked game files via steam, it replaced 3 files. But the game still crashes... No DLC-Modpack installed. Running Visual studio attached to civ gives me, that the callstack is in "msvcr90.dll", so maybe I somehow destroyed this dll?! Anyone as an advice how to fix this?! edit: deleted the whole civ 5 folder in MyGames folder solved the problem. Willl try to find out what exactly it was.