When I demoed the game at GDex, at the end of every play session, I saved the current game to disk. I skipped out on saving the data for the people in the game, so those are all missing, so all that remains of the towers is the terrain and rooms. There were a few other bugs that resulted from that.
Every game started with a square of empty floor, an entrance, construction room, and an elevator in place, and a vast majority of the players built within that square. So many of the games came out looking nearly identical to each other. However, there was still enough variety that it was nice to see how people played the game, and what they ended up doing with it.