Sludge (FOC)
| The name or term "Sludge" refers to more than one character or idea. For a list of other meanings, see Sludge (disambiguation). |
- Sludge is an Autobot from the Fall of Cybertron portion of the Aligned continuity family.

The hapless Sludge is a member of the Lightning Strike Coalition, serving under the command of Grimlock.
Fiction
Fall of Cybertron comics

Shortly before the Great Exodus, Sludge was a member of the Lightning Strike Coalition, a brutal subgroup of Autobots under the leadership of Grimlock, who reluctantly followed Optimus Prime's more cautious brand of warfare... when ordered. Swoop was sent to investigate Shockwave's energon sources but he worryingly disappeared. When the other four coalition members learned that Swoop had been captured by Shockwave, they disobeyed orders and went after him themselves. Good Intentions Sludge and the others followed Grimlock, secure in his arrogance, who was glad that the fate of Cybertron rested in their hands. Secrets Although the group attempted to rescue Swoop from Shockwave's experiments, they were overwhelmed by Insecticons. Siege Mentality
Games
Transformers: Fall of Cybertron

Sludge and the rest of the Lightning Strike Coalition deserted their posts defending the Ark to look into some mysterious energy readings. He helped steal an Autobot drop ship and together the team traveled to the Sea of Rust. Unfortunately the energy readings related to Shockwave's recent activities near the energon lake, particularly his efforts on the space bridge and the creation of the Insecticons. The Lightning Strike Coalition battled the Insecticons, but while the others were captured for Shockwave's continued experiments, Sludge was seemingly killed. His body was found by Jazz, partially dismembered and grafted to the wall of an Insecticon hive. Jazz stated that he was in stasis lock. Jazz removed Sludge's memory core while attempting to find out what had happened in the tunnels. Jazz later flooded the tunnels with a highly toxic fluid, quite possibly destroying Sludge's body in the process.
After escaping from captivity, the newly christened Dinobots found a hologramatic datacore which projected the body Shockwave had originally planned to give Sludge. Fall of Cybertron
Notes

- Sludge is the only member of the Lightning Strike Coalition to appear in Fall of Cybertron in his original, pre-Dinobot body.
- And yet in Rage of the Dinobots, he is alive and well AND has aquired a dinosaur mode. Maybe he wasn't dead like everyone thought...?
- Sludge is currently the only Dinobot that isn't playable in Fall of Cybertron's multiplayer.
Foreign names
- Russian: Slush (Слякоть Slyakot)



