Did you press "enter" while on the title screen?
Viewing post in The Last Safe Room jam comments
Sure, I pressed every key on my keyboard =) The thing is that there is a title, then quick black screen blink, and once again title screen. No text about "Press enter to enter The Last Safe Room".
DebugView says: [9140] FTH: (9140): *** Fault tolerant heap shim applied to current process. This is usually due to previous crashes. ***
So, probably some Godot issue...