The game was a great and fresh experience, the only problem is that it froze and crashed before the music part of the last culture. It's a shame though as I really wanted to see the end. Great Job and keep it up, there's a lot of potential here!
By the way Olaf, i thought I should mention I found that bug that ended your game, thanks for informing me about it, it was EXACTLY where you said it was, specifically I missed a piece of info in the JSON file that was being parsed. I'll upload the new version shortly.
Don't worry I don't expect you to slog through the whole thing again xD. The ending is simply a speech you give at the end where you can fix some of your mistakes before each culture declaring if they like you or not.
Thanks again for playing.