The "Jedi betrayal" themed expansion, known as Order 66 (O66), for the Star Wars PocketModel TCG (Trading Card Game) was launched on March the 5th in the year 2008. This release brought forth fresh ground and air units, including the AT-OT alongside Republic and Droid Gunships, and introduced updated rules governing the use of discard objectives. Comprising 60 cards and 18 units, this expansion marked the inception of a series of smaller releases throughout 2008.
Products associated with this expansion featured a starter set called the Elite Assault Theme Deck (EA), which presented a pre-set 30-card deck focused on the events surrounding Supreme Chancellor Palpatine's issuance of Order 66, and a set of units including two pre-constructed Jedi Starfighter PocketModels, priced at $19.99 (MSRP). Each Order 66 expansion pack, with an MSRP of $4.99, included 2 styrene cards (containing 4-8 PocketModels), 6 regular cards, 2 black micro dice, and an instruction sheet.
The Order 66 expansion introduced new gameplay mechanics and concepts, which included:
- Objectives that are discarded
- Cards with targeting abilities specific to Jedi
- New icons for Elite and Airborne units
- Decals for PocketModels
- Aggressive Reconnaissance
- Armored Division
- Big Guns
- Crack Shot
- Elite Detachment
- Faithful Ally
- Fancy Flying
- Flyby
- GH-7 Medical Droid
- Home Guard
- Hover
- Security Records
- Shot Down
- Tactical Deployment
- Teamwork
- Birth of an Empire
- Younglings
- Zett Jukassa
- Combat Drop
- DD-13 Medical Droid
- Escape Pod
- Escape Tunnel
- Hate Leads to Suffering
- Homing Missile
- Imperial Might
- Jedi Determination
- No Escape
- Peacekeepers
- Sabotage
- Safe Haven
- Search and Destroy
- Strafing Run
- Tailgunner
- Unlikely Escape
- Urban Warfare
- Luminara Unduli
- Mace Windu
- Stass Allie
- 501st Legion
- Air Superiority
- Captain Jag
- Commander Bly
- Commander Cody
- Commander Gree
- Commander Neyo
- Commander Thire
- Obi-Wan Kenobi
- Order 66
- Captured Jedi Temple
- Plo Koon
- Bail Organa
- Commander Cody
- Darth Vader
- Emperor Palpatine
- Padmé Amidala
- Aayla Secura
- Ki-Adi-Mundi
- Yoda
- 01A 442nd Siege Battalion AT-RT
- 01B 76th Regiment AT-RT
- 01C 91st Recon Corps AT-RT
- 02A 41st Elite Corps BARC Speeders
- 02B 91st Recon Corps BARC Speeders
- 02C 442nd Siege Battalion Swamp Speeder
- 03A 127th Gunship Wing ARC-170
- 03B Wing 76 Droid Tri-Fighter
- 03C Wing 91 Droid Tri-Fighter
- 04A C78 Division Droid Gunship
- 04B H33 Division Droid Gunship
- 05A Kit Fisto's Jedi Starfighter
- 05B Aayla Secura's Jedi Starfighter
- 05C Barriss Offee's Jedi Starfighter
- 05D Luminara Unduli's Jedi Starfighter
- 06A Stass Allie's Jedi Interceptor
- 06B Ki-Adi-Mundi's Jedi Interceptor
- 06C 12th Group Geonosian Fighter
- 06D 15th Group Geonosian Fighter
- 07 21st Nova Corps AT-OT
- 08 21st Nova Corps UT-AT
- 09 127th Gunship Wing Republic Gunship
- 10A 212th Attack Battalion AT-AP
- 10B 91st Recon Corps AT-AP
- 11A Ki-Adi-Mundi's Jedi Fighter Tank
- 11B Stass Allie's Jedi Fighter Tank
- 12A Mace Windu's Jedi interceptor
- 12B Aayla Secura's Jedi interceptor
- 12C 1st Group Geonosian Fighter
- 12D 2nd Group Geonosian Fighter
- 13A 212th Attack Battalion AT-RT
- 13B 21st Nova Corps AT-RT
- 13C 41st Elite Corps AT-RT
- 14 212th Attack Battalion AT-TE
- 15 Tantive IV Corellian Corvette
- 16 212th Attack Battalion Republic Gunship
- 17 Prosecutor Acclamator-class Transport
- 18A Ki-Adi-Mundi's Jedi Starfighter
- 18B Stass Allie's Jedi Starfighter
- 18C Plo Koon's Jedi Starfighter
- 18D Obi-Wan Kenobi's Jedi Starfighter
Beyond the units within this collection, a supplementary oversize unit, identified as a Mega Model, was presented as an award during April of 2009 for one of the tournaments arranged that month. It is a replication of a unit sharing the same designation from the collection (possessing identical statistics and markings), yet imprinted on a 1/4" styrene sheet. While standing taller than a 12 fl. oz. (355 mL) aluminum can by a third, the unit is deemed permissible for competitive play and can be utilized in both games and tournaments.
- 127th Gunship Wing Republic Gunship

The EATD, or Elite Assault Theme Deck, was a starter pack originating from the Order 66 expansion. It featured a predetermined 30-card deck, a fixed assortment of units, a pair of micro dice, and comprehensive rules accompanied by a strategy guide.
Units
- 1x 41st Elite Corps BARC Speeder
- 1x 91st Recon Corps BARC Speeder
- 1x 442nd Siege Battalion Swamp Speeder
- 1x Mace Windu's Jedi Interceptor (Pre-built)
- 1x Aayla Secura's Jedi Interceptor (Pre-built)
- 1x 1st Group Geonosian Fighter
- 1x 2nd Group Geonosian Fighter
- 1x 212th Attack Battalion AT-TE