Orbital Launch
Propulsion · Space Age era
Your own orbit, and three slots in it. The first thing above the weather.
Unlocks
Crew CapsuleSpace · Era 2
InterceptorSpace · Era 2
Orbital RocketSpace · Era 2
Orbital stationSpace · Era 2
Suborbital padLogistics · Era 3
Survey ProbeSpace · Era 2
Boost
Research is cheaper once you meet this condition: Build a Launch Pad.