By Date
fusion reactor 2.0
0 comments
Fusion power plant
0 comments
one hell of a nuke
0 comments
basic plutonium reactor
4 comments
Proxima B base
0 comments
demon core
1 comments
Plutonium rocket
0 comments
silicon based life
0 comments
realistic rocket
0 comments
wind turbine
0 comments
basic uranium power station
0 comments