Minecraft wiki entry for 0x10c, associated text: Cooling systems and fires.[7]
Crashing into planets and having to scavenge for parts to repair your ship. [52]
Landing gear, which may break if a ship lands too hard. [53]
Crashing into asteroids would damage onboard systems.
Devices could be overclocked, which may cause them to catch fire.
You would be able to use other people’s programs on your ship’s computer by using floppy discs.
Gravity generators. When a ship’s gravity generator is unpowered, objects inside the ship would be subject to the same physical forces as the ship itself.
Wires and other attachments that hang from the ceiling.
Automated turrets.
Refrigerators. [54]
Laser guns.
A ship editor. Players would first build the external part, and then go into a room mode with a cutaway view of the ship, in which players would be able to carve out rooms with custom dimensions.
Specialized rooms such as medical bays.
Hull breaches, which would cause air to leak out.
A monthly subscription fee would have been required to access a global multiplayer server called the multiverse, due to the computational cost of simulating the trajectories and computers of all the player's ships, even when the players piloting those ships weren't logged in.
Each player would only be able to have one generator at a time, but multiple players would be able to place their generators on a single ship to give it more power, encouraging cooperation between players.
Sensors. [55]
3D printers.
Devices would have their own inventory, into which interior components could be placed. The devices themselves would be craftable from various materials using 3D printers, but the interior components would have to be scavenged from abandoned ships. Each of these components would come in many variants with different attributes.
Mining for gold and other metals. Terrain was not planned to be modifiable, in order to reduce world file sizes.
A leveling system in which players would level up in specialized skills. Dying would reset the player’s levels.
Players would keep their ships after respawning.
VR support. [56]
Wires running electricity from the generator to other devices. [37]