The Order 66 (O66) 'Jedi betrayal'-themed expansion for the Star Wars PocketModel TCG (Trading Card Game) was released on March 5, 2008. This expansion included new ground units and airborne units, such as Republic and Droid Gunships and the AT-OT, and new rules for the use of discard objectives. The expansion consisted of 60 cards and 18 units, making this the beginning of a series of smaller expansions for 2008.