By Date
heat/radiation shielding
14 comments
new cooling mechanism
4 comments
sing engine
13 comments
anti aestroid missile
16 comments
non flammable coal
45 comments
upgraded it
11 comments
early planet
9 comments
napalm bottles
5 comments
alive creature that grows
14 comments
attempt at solid uranium
12 comments
uhh don't press the button
9 comments