Structure Deck: Machina Mayhem
- Game: Yu-Gi-Oh!
- Series: 2010
- Cards: 37
- Released: 2010-02-19
Cards
- Machina Fortress (SDMM-EN001)
- Machina Gearframe (SDMM-EN002)
- Machina Peacekeeper (SDMM-EN003)
- Scrap Recycler (SDMM-EN004)
- Commander Covington (SDMM-EN005)
- Machina Soldier (SDMM-EN006)
- Machina Sniper (SDMM-EN007)
- Machina Defender (SDMM-EN008)
- Machina Force (SDMM-EN009)
- Kinetic Soldier (SDMM-EN010)
- Blast Sphere (SDMM-EN011)
- Heavy Mech Support Platform (SDMM-EN012)
- Cyber Dragon (SDMM-EN013)
- Proto-Cyber Dragon (SDMM-EN014)
- Green Gadget (SDMM-EN015)
- Red Gadget (SDMM-EN016)
- Yellow Gadget (SDMM-EN017)
- Armored Cybern (SDMM-EN018)
- Cyber Valley (SDMM-EN019)
- The Big Saturn (SDMM-EN020)
- Machina Armored Unit (SDMM-EN021)
- Prohibition (SDMM-EN022)
- Swords of Revealing Light (SDMM-EN023)
- Shrink (SDMM-EN024)
- Frontline Base (SDMM-EN025)
- Machine Duplication (SDMM-EN026)
- Inferno Reckless Summon (SDMM-EN027)
- Hand Destruction (SDMM-EN028)
- Card Trader (SDMM-EN029)
- Solidarity (SDMM-EN030)
- Time Machine (SDMM-EN031)
- Dimensional Prison (SDMM-EN032)
- Metalmorph (SDMM-EN033)
- Rare Metalmorph (SDMM-EN034)
- Ceasefire (SDMM-EN035)
- Compulsory Evacuation Device (SDMM-EN036)
- Roll Out! (SDMM-EN037)