Why do we have 2 copies of the game?

[bongodriver]

But it's not 2 copies of the game, the main game directory is in the steamapps, and the 1Csoftclub folder just contains some configuration files and file dumps (cache) and save files, not uncommon in most games to have the saves and configs in a folder in my docs.

[adonys]

the il2 folder from the steam app contains the default files the game is using to generate user's customized settings, which are saved in user's folder, on C drive.