I wanted to echo what nawel and knightsofalbion are saying. For me, most of the time when it tries to load it ends up with a black screen. On rare occasions it seems to load successfully, but you can't navigate the game (going to town, inventory, etc just gets stuck on loading).
Either crafting times need to all be a few seconds, or the wooden plank requirements need to be reduced for the upgrades. The player already spends time gathering requirements for crafting, so there is no need for long craft times. The wooden plank requirements get ridiculous, getting to 40+ for an upgrade after a while. That is needlessly tedious when combined with the crafting time.
Great game Raius. It has a happy ending (the "true" ending), but isn't cheesy, because you wrote the dialogue so we could get to know the characters as the story progressed, that way the player actually cares what happens to them.