You may enter multiple commands when appropriate, separated by a carriage return (ie. after the sacrifice command). To avoid wasting a sacrificed ship, the system requires you to explicitely pass any undesired actions. Catastrophes are still optional and no warning will be given if you fail to trigger one.
Below are the recognized commands:
* homeworld star1 star2 ship
* discover ship fromSystem newStar newName
* move ship fromSystem toSystem
* build ship inSystem
* trade oldShip newShip inSystem
* attack ship inSystem
* sacrifice ship inSystem
* catastrophe inSystem color
* pass
Stars and Ships are referred to by their colour and size (eg. R1, Y3) with the sole exception of the attack command. In this case, the ship must also be specified as belonging to a particular player by appending that player's seat designation (eg. G2S, B1E). Systems are referred to by their given names and are case insensitive.