By Date
10^1076 year
2 comments
ultra safe plutonium reactor
4 comments
monofuel
0 comments
low power isoz laser
1 comments
neutron electron fusion reactor
0 comments
helium star surface test
0 comments
dest ignited helium star
0 comments
micro fusion reactor
1 comments
improved fusion bomb
0 comments
interstellar probe
0 comments
dyson sphere CRACKER MOD
13 comments