You asked for it, here it is. The game is now available in the following languages:
Simplified Chinese
Japanese
German
Brazilian Portugese
French
I've also fixed a couple bugs:
Fixed bug where lumberjacks would cut sapling that is not the lowest base tier.
Introduced a save file backup to reduce chances of save file corruption.
Having a savefile corruption now enables a special tool to give progression back.
Finally, I had to remove the demo because it was complicated to keep two versions of the game up to date. Sorry about that.