Ambitious idea for such a short jam! Enjoyed exploring and hiding caches, though I'm not sure how I feel about the goal being "get as far away from your caches as possible". I do like the idea of hiding them and trying to find them though. Not all games need a score/win component I guess.
Odd bug, but at some point I somehow managed to fall through the floor and found myself in an endless sky with some blocks floating in it. So there might be a cache stored at like -1000 somewhere...