Spacecraft
Spacecraft is only what allows player to move and interact with the Outspace world. Every possible activity is performed through spacecraft. User can own more than one spacecraft. User can control only one spacecraft at time.
Spacecraft is completed by a line of Spacecraft Module connected in line. First is always Commander Module and last is always Engine Module.
Modules have own crew capacity, cargo capacity, energy production/consumption, berthing capacity and Crew Stations
Building
Spacecraft are created outside the gameworld for EXC. Modules can be installed or changed in Assembly Bay on Space station
Crew
Spacecraft needs a Crew on Crew Stations to be operational.
Cargo
Spacecraft have cargo capacity to carry cargo. It is only way to transport items in space.