It is endless. We didn't encounter any crashes in our testing, but yeah, must have been a crash.
If you can, send us the log or post its contents here. I think it'll be at: C:\Users\<username>\AppData\LocalLow\DefaultCompany\TyperHero\output_log.txt
It actually crashed twice even. First time on floor 12, second time at last fight on floor 1. Also the getting strength back doesnt work properly. Not sure but my guess is that it works only on first game you play after starting the game, but this is merely a guess, since i recall that it did work the first time i got on third floor, but ever after that it didnt work.
Where do i send that log file?