Before I get this game, I would like to know how long it takes to complete or just about how much time I could possibly spend in the game? Is it short? Or is it long and always had something to explore?

I am trying to press E to go in the door down the first set of stairs after you spawn but it doesn't open. I don't see a key anywhere either and you can't jump down to the other stairs. What to do? Maybe I missed something as I don't speak anything but English....

I got past the first one after getting the trash and the key, but I don't understand how to unlock the second door

So I am stuck in the classrooms. There is a door that needs a 2 digit code. I found nothing. Then I found a key, but it works on none of the two doors. I am confused. Anyone know a solution?

LowLevelFatalError [File:D:\build\++UE5\Sync\Engine\Source\Runtime\RHI\Private\PipelineStateCache.cpp] [Line: 546] Shader compilation failures are Fatal. 0x00007ff636470382 StrangeDream-Win64-Ship!UnknownFunction 0x00007ff636475815 StrangeDream-Win64-Ship!UnknownFunction 0x00007ff634910df1 StrangeDream-Win64-Ship!UnknownFunction 0x00007ff6348fddef StrangeDream-Win64-Ship!UnknownFunction 0x00007ff6349006fe StrangeDream-Win64-Ship!UnknownFunction 0x00007ff634912a23 StrangeDream-Win64-Ship!U...