I enjoyed playing this a tremendous amount. I am curious about the ratios used in the heat generation/dispersion. What I mean is that without any upgrades it only takes 8.8 Super Heat Vents to theoretically remove the heat generated in one tick by one Quad Thorium Cell which is possible to achieve with the Super Heat Exchanger. In order to do the same it would require 397.4 Ultimate Heat Vents to vent the heat generated by a single Quad Nefastium Cell in a single tick. There just aren't enough spaces to even imagine that happening. While it takes 9600 ticks for the Quad Nefastium Cell to produce enough heat to destroy one Ultimate Coolant Cell it only takes 2400 ticks for the Quad Dolorium Cell to generate enough heat to destroy a Wondrous Coolant Cell. The different tiers of items scale much differently than the different tiers of fuels, and the effective methods of heat management seem to change from manageable dispersal/removal of heat to wanton sacrifice of coolant cells.
Meanwhile at British High Command...
Messenger: Sir I've got the latest scrap reports from the front lines. They ships the Axis have designed are markedly more up-to-date than our own. I wonder if we can retro fit any of this to our planes...
Churchill: Nonsense! We're going to fly the same planes that won the battles in 1907, no point in fixing what isn't broken.
I must say in all my years of game-play I've never encountered a game so true to itself and it's players. Truly a revolution is game design. Bravo Mazapan! Side note your end/credit song is just... AWESOME!
 "Reactor Incremental"){kind=icon}
 "SteamBirds"){kind=icon}
 "You Have To Burn The Rope"){kind=icon}
 "oO"){kind=icon}
 "loops of zen"){kind=icon}