Fun concept but whether you win is completely dependent on whether a gatherer happens to get stuck between a tree and a house, nothing else matters. Because of the randomness it is a bit frustrating to play. If you find a way to make the gameplay more reliable that would improve the game a lot. Maybe add a second house that is specific for woodcutters. And then have the units move towards tiles that matter and back to houses when necessary instead of 100% randomly.