Three-character codes you can set for each of your ships and planets. These have three functions:
- They serve as passwords. When two objects have the same friendly code, they appear friendly, as if they were owned by the same player. This can be used for informal alliances.
- Friendly codes define the battle order.
- Several special codes trigger some actions or modify some missions. For example, the mkt friendly code on a ship makes the ship build torpedoes from the minerals it carries.
