As the title says, how can I get my game version to 1.2.4? My current game version is 1.2.0 and I'm in PC. Or am I out of luck that it only updates online? Or does it even update while online?
As it is a Steam game on PC, it will be (by default) automatically updated when you are online on Steam. If you have turned automatic updates off, you can update it manually by verifying the integrity of game cache.