It's great to hear you were able to use the jam as an opportunity to refine the mechanics in Lucky Falls. In its current state, it's a good voxel-based builder sim. I like the idea of building the world with gacha-like random tiles that are purchased with resources, which unlock over time. Once you get the hang of the game, the gameplay loop makes sense and remains challenging. The game's visual presentation is simple and effective, and the pads used for the soundtrack are excellent and really add to the game's vibe. All in all, it's shaping up to be a very engrossing and addictive game.
In terms of feedback, I think some greater information for the player about the tile purchases could help provide context to what category of tiles are being purchased - maybe through a tooltip. The inclusion of a combat system is neat, but a little random. I could never quite defend my island's inhabitants from the packs of wolves over time! The game does require you to quickly set up the infrastructure to sustain and defend itself, otherwise it can be a quick trip to starting all over again.
Thanks for submitting Lucky Falls to the screamless jam!