Big things are happening on TV Tropes! New admins, new designs, fewer ads, mobile versions, beta testing opportunities, thematic discovery engine, fun trope tools and toys, and much more - Learn how to help here and discuss here.
What Could Have Been: The original concept prototype of the game was a tongue-in-cheek Steam Punk setting, in which the player's "mobile factory" defended a stationary "steam factory" by producing a variety of crazy contraptions. The enemies attacking were clockwork automatons which were destroyed in a previous Robot War, only to be possessed by evil spirits and come back as Steam-powered Zombie Clockwork Robots which could only come out at night. Since a massive explosion in that war put the Earth into a rapid spin, day and night cycled very quickly, thus justifying the downtime the player gets between waves of attackers.