Huh, I wonder why my system in particular seems to be cursed. Sometimes I wonder if I should even keep reporting these crashes as most of the time it seems the dev can't replicate them and I end up throwing them into an endless pit for no reason. But it does run with the Linux executable, so I can provide proper feedback now.
Here's a snapshot of my first run stats, without looking at any part of the description, and only knowing the genre:

1. About 6 minutes, though I've never been particularly skilled in these games. A projectile from a cultist took my final 4 hp.
2. Like old single-tower defence games, but you can move, and upgrades are random. I couldn't say the premise is particularly outstanding compared to competitors in the modern 'Survivors-like' genre, but it seems playable enough for a casual project.
3. Health goes down when something hits you. Sanity goes down when you're near the enemy or when ??? Not sure why it continued to go down - maybe related to one of the cards I took that said something about sight, but it wasn't clear what that meant.