It's a fun game. The rebirth mechanic seems a little underdeveloped at the moment. Each rebirth cycle is essentially the same, making it a little tedious to complete. Also, it's a little strange that the curse log buffs don't stack. In later rebirths, curse trees can spawn in quick succession. Being unable to take advantage of this is a little frustrating.
Thanks for playing.
The rebirth is more or less just a reset. I agree that the game could have had more of a progression system to it, like unlocking more tree tiers and such.
Stacking of curses could be fun, it would probably be quite overpowered, but fun nonetheless.
Thanks for the suggestions, as mentioned in other posts, I'm not actively working on this any more, but there might be some small updates here and there. I've added your suggestion to the backlog.