I have been playing it for a bit and my reactor is pretty advanced. I was sitting here wishing I could shut down (SCRAM) the reactor so that I could let everything cool off, re-design and then re-start the reactor. This would allow me to see how my new cooling design works as if the reactor just started instead of having to contend with current reactor temperatures. Just a thought.
Challenge 16 needs to be re-balanced IMMEDIATELY! Do you know how many times I lost on the computers first play? Give the player more +health cards and more +sanity cards. Also, any game where you can lose after playing the first card is REALLY poorly thought out-especially when the human player can ONLY rely on the luck of the draw.