It's called
The Gestalt Games
The Autobots and Decepticons were too caught up in their war. They never planned to have to defend themselves, as a united front, against another race intent on taking them over as slaves. They thought themselves too strong, too superior, too technologically advanced. So when a race of techno-organics storms the universe and enslaves or kills most of them, they are unprepared to say the least.
Intrigued by the unique energy fluctuations and ties of the gestalt teams, these techno-organics create a gladiatorial maze ring for entertainment. The Gestalt Games.
Now these teams must survive the mindless games they've been pitied against, all while learning the true meaning of being a gestalt. Which for some, is harder than it seems.
The race of techno-organics that I had in mind is actually my technomages from Wish You Were Here. (cue the horribly self-indulgent part) It's an AU where the technomages win the war, Eorin survives to lead a still fractured council, and Haverick dies in the assault on the city. And I'd probably pull in a dual plot of both the gestalts in the games, and the technomage council attempting another coup out of the games. It would be very complex. But I love this idea so ♥