A door in cosmoteer is used to give crew access to a part, hence, allowing crew to supply the parts.
Doors are strategic enabler and costs 200 credits. This is a relatively high cost especially on smaller ships and or for a tight budget in a torunament. As doors allow fire to spread through them it's more so important to strategically place doors for efficiency and defense.
- Main article: Modding:Sprites#Example 2: Placing doors
When selecting doors in build mode or blueprint mode the places where doors can be place are flashing up. Simply move the move to those places and click for placement.