Game does not start up

[NullPointer]

When I run the game, it does not start up. Nothing happens, the game does not launch and then quit, it just does not start up at all. I have tried the following things:
1) Verifying local files integrity.
2) Uninstalling and reinstalling.
3) Installing in a new hard drive.
4) Disabling Steam Cloud and deleting Preferences folder.
5) Starting the game in troubleshooting mode.
6) Switching between beta and normal branches.

None of the above worked. The troubleshoot log only shows "TEST: 60true" and nothing else.
I have been able to run this game with no problem before but then this started happening roughly one week or so ago. Can I please get some help? I see a lot of people with similar issues in this forum and no resolution or response from devs.

[RevoNeth]

Agreed. and same issue!

[PinoyPrince]

I'm having the same issue but I never even got a chance to play it since it won't load at all. =/

[Sorunily]

Same issue

[BeavisSaves]

Same issue. I wonder whats up with the file.

[BeavisSaves]

My troubleshouter has a problem with a file called lib/rt.jar that seems to have not installed right.

[BeavisSaves]

Treid updating Java. No fix.

[BeavisSaves]

Updated Java, uninstalled and reinstalled, still getting this: rror occurred during initialization of VM
java/lang/ClassNotFoundException: error in opening JAR file <Zip file open error> F:\Steam Library \steamapps\common\SlayTheSpire\jre\lib\rt.jar


Using Windows 10..

[Ramunetic]

I have the same issue with my laptop computer. It is running windows 7 x32 and graphics are very low-end. I installed and played the game with another computer of local internet cafe. It is running window 10 x64 and graphics are very high-end due to PUBG's high demands. And I played the game without any issues the whole time. I think if your PC is not good enough(mine is very old), that could be the major problem.

[Dionysox]

Same issue, i noticed that it crash at the moment i set the game fullscreen, since that i was able to access the game menu.
But now i can't access the menu to change back my settings ...

[BeavisSaves]

Originally posted by Dionysox:

Same issue, i noticed that it crash at the moment i set the game fullscreen, since that i was able to access the game menu.
But now i can't access the menu to change back my settings ...

Slightly different issue than what we're getting. Your's boots up then crashes. Ours can't even run to boot up or crash.

[Cheelay]

I'm having the same problem. None of the troubleshooting steps in the FAQ helped. Also tried installing on different drives. Troubleshoot.bat returns "TEST: 60true" and closes.
Win 10 64bit
i7 6700k
16GB DDR4
GTX 980