→Publications: + wiki link
* ''[[Interstellar Operations]]'', advanced rules to allow playing on a grand strategic scale, playing an interstellar empire instead of individual combat units. This is similar to a previous FASA game named ''[[Succession Wars (Board Game)|Succession Wars]]'' and rules from the ''[[Combat Operations]]'' sourcebook
* ''[[A Time of War]]'', the role-playing game rules for the BattleTech universe
* ''Universe Book'', which provides background and details on the game's fictional universe
Catalyst has continued this line of rulebooks that was begun by FanPro.