When you constructed the key, nothing happened?
Sorry for the bug, I'll try to see if I can reproduce it.
Oh, and I'm working on a building to generate population. Thanks for your feedback!
I don't know why but the key doesn't seem to work for me... I've thirteen temples now and over a 100 deep ones plus almost everything is level 8... did I go too far?
Playing on the easiest mode of course, maybe that impacts?
Anyway, great little game which seems like it'd be even better but for the frustration of not being able to finish! ;)