Thank you for playing and for the comment! Yeah, the buffer overflow comment was a last minute addition. In the original story I had in mind, there were supposed to be 2-3 more biomes, and the main character procrastinated so much that he circumnavigated the globe. The actual end of the current game is when you talk to the NPC to the left of the castle, but you essentially finished the game.
Also, the drop amount of copper was supposed to be 2-3 per deposit, but I forgot to change it before time ran out. For wood, you can kind of skip the last upgrade, which I didn't really explain very well.
Nice job finding the crystal!