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
2m Poseidoid Habitation Module Gabyalufix's quick and dirty miscellania Sam Lewis, mod by Gabyalufix 2690 3.5 12 0.2 4200