[2020] Game not loading on Steam version?

Sorry about this! I’ve done some testing on my end with launching the game from a hard drive (rather than an SSD), and found that the “Not Responding” window only comes up in certain situations.

Are you clicking on or interacting with any other apps while the game is launching? I found this could cause the game to stop responding, but waiting longer let the game open.

In your case, the game’s log file would be most helpful thing for us to look into this. Sorry about the trouble!