Liked the big-pixel graphic and the atmosphere, without some bugs I encountered I'd spend lot more time with it. The bugs are the card shifting to the side when you collect lot fo things and then drop some (some cards even went off screen), and the combine method not always working (got the stones down to build a firepalce one time, then couldn't replicate it in any way in a differente play).
Without bugs and with a deep "tree" of combination, this could become a game in which to sink a good amount of time, good work