Like Kerbal Space Program? Then check out this book: Apollo. Or if you're more interested in the science behind spaceflight, you might like this: Fundamentals of Astrodynamics

KSP Parts

Title Package Author Cost Mass Crash Tolerance Drag Max Temp
Happypod V1.0 BTV_Happypod xzbobzx 42 0.6 14 0.2 3400
Happypod V1.0 zandalls cannon xzbobzx 42 0.6 14 0.2 3400