Thank you again for these precious feedbacks. It's really constructive. The level of information is key and thanks to you I understood that some things that I thought were intuitive were actually unclear.
You're also right about the type. i hesitated categorizing it as a puzzle but I didn't to give to many tags. I taggued it as roguelike because of the permanent death od adevnturers and the fact that you get knowledge and items for your future expeditions to go further. But since it's not really your adventurers that progess it's a bit awkward. I'll change it.
Thanks again for all the feedbacks. I'm sorry I cannot try your game until a few hours from the end of the jam, I don't have access to anything able to run a game right now but I'll definitely credit you for the help.