The demo is rediculously short, just three turns for me, plus the added bonus of a runtime error if I try and start a new game immediately after the promotion page.
Had the same problem, 3-4 turns and the demo ended.
A bit disappointing really and made me a bit hesitant to buy the game.
But I took a chance and did it and it was worth it.
I’d have bought the game too but I noticed that there are bugs with buying high priced items without owning the lower price equivelents. Seems like a bit of an oversight. I’ll probably pick it up when these issues are sorted out.