Yoooo can someone help me? I dont want to play through the game 10 times on Old-School without it unlocking.

I will try to reinstall the game and see if I can clear the save files. It seems you cant delete your saved games and I have a small idea to what might have gone wrong because of this.

Just FYI I am very aware that I am not supposed to pick level select. I did not do that. I picked the Campaign and played through every level twice. (Got the achievement for it.) Only the third time did I try level select (Even though I am aware that this should not even work.)

So what do I do? Is it possible that you haft to play through the campaign without dying at all and never reloading any check points at all? I only died a single time in my second playthrough and reloaded the checkpoint. Could that cause me to not unlock Hellmare?

Is it possible that me trying the Demo of Hellbound a long time ago could cause problems?

Edit: After getting help from dev it is clear my game was somehow broken right when I installed it. I had all the survival arenas unlocked litteraly right when starting the game, even though I never even played it at all before, which is not normal. Clearing the save data completely and whiping the whole folder restricts me from survival mode, so now I can play through the game for like the 5th fkn time to unlock Hellmare hopefully. If it works this time then im like 90 percent certain that this bug was caused by having played the demo earlier. Will update later on. If anyone else experienced having all arenas and level select unlocked right from the start without having played the game at all, this is likely your issue.

So it finaly unlocked after clearing the save data and playing through the game again..... And im pretty convinced playing the demo is what caused this bug. Game was messed right when I installed it.