The two that have to open to get into main room and get collection box…is it just 100% random? Been hanging around killing monsters for an hour and neither door has opened.
Kill monsters till a message says the door to the left or right room has opened then light the torch inside that room then kill more monsters till the opposite door opens then light that sides torch, that will open the main door.
It can take a while. I think I was there a couple hours.
Theres a good guide here:
Is killing monsters what unlocks it or just a way to kill time? Been here forever and neither door…
I think its timed, I just killed stuff while I was waiting.
Specifically, you need to kill mobs on the corresponding side of the door. I recommend starting on the right side, since mobs are fewer there. As for how long, it could take up to around an hour or so, if you’re the only one there.