"Till all are one"
"You reading that plaque again?"

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The war ended, and the quest to find the knights ended in chaos; yet after that journey, Cybertron was still rebuilding, and life had to go on.

A new life, a new Cybertron.

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This is an early access version.

Thanks for the 300 fans!

Here it is: the Lost Light Series RPG post.
This is an IDW-led, cross-continuity post-Lost Light AU, about 98 years after the Great War and 90 years after the Unicron Crisis.
A lot of characters survived/got their story altered for the sake of the RPG, and a lot of niche characters are taken as inspiration from their original work and made into an IDW version.
You might see RID names, Animated characters, characters that only have toys, even.

The city descriptions are mostly from my imagination, plus some TF Wiki knowledge that I have. So anything that isn't canon or out of place is my hallucination.

POV: ANY, be anything

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About Cybertron/Overall setting:

THE SIX CITIES

Iacon — the capital, up north. Beautiful, bureaucratic, and a little full of itself: government ministries, the Council Plaza, museums, and the media district all cluster here, alongside Iacon Central University and its renowned teaching hospital. It's the political and academic heart of the planet, and home to the Optimus Prime Memorial, publicly honoring a hero the world believes died in the Crisis.
Locations: The Decagon (government ministries, permit hall), CSF Headquarters (national security/major crimes), Iacon Central University (top university + teaching hospital), CBN (public broadcaster), Medicine & the Earth Quarter (civilian hospital + human neighborhood), The Galleria (luxury mall).

Rodion — the working heart of the south-central region, nicknamed "the Rust Belt" by its own proud residents. Industrial, blunt, this is police-and-racing country: home to the beloved 12th Precinct, the Grand Circuit racetrack, and dense, friendly family neighborhoods. Mayor Bumblebee runs the city from Centenary Square.

Locations: 12th Precinct (flagship police precinct, exterior), Inside the 12th Precinct (bullpen/evidence/dispatch detail), Rodion Education & Sport (Polytechnic, Grand Circuit racetrack, youth racing), Medicine in Rodion (trauma hospital + community clinic), Rodion City Hall (Mayor Bumblebee's office).

Vos — the aviation capital in the eastern highlands, built vertically because it could be. Sky-lanes, launch towers, and a flight academy dominate the skyline, though ground-level transit means nobody needs wings to get around. Mayor Starscream's "retirement" from national politics is renewed, loudly, every quarter.

Locations: Offices of the Mayor (city hall), Vos Aviation Academy (flight college), Terrace Spaceport & Sky Business (spaceport, charters, propulsion lab, rooftop bars).

Kaon — the southern industrial city that once powered the war and now powers reconstruction instead. Former Decepticon strongholds have become co-ops, adult education campuses, and regulated fighting arenas; the city carries its history openly rather than hiding from it, and its plain-spoken residents wear old faction badges the way veterans wear service ribbons.
Locations: Kaon Civic Arena/"the Pits" (regulated fighting arena), Kaon Reconstruction Medical Center (trauma/prosthetics hospital), Kaon Open University (adult/veteran education), Black Engex & Miners' Brewing (moonshine culture), Whistler's Clockwork & Three-Shift House (antique shop + found-family house).

Nyon — the eastern arts-and-entertainment capital, rebuilt around the memory of its own destruction and now the planet's stage, studio, and dance floor. Theatres, music venues, a sprawling shopping-and-entertainment complex, and a genuine gift for laughing again define the city's spirit.
Locations: The Emporium (giant mall), Firstlight (nightlife/music district), Conservatory & Auteurs' Cooperative (arts schools), Inside the Emporium (cinema/dining/arcade detail).

Praxus — the western coastal science-and-port city, obsessed with precision. Home to a major science institute, a bustling harbor, and a civic culture that treats measurement as a way of life — right down to a literal Calibration Court.
Locations: Institute for Advancement of the Sciences (science university), Measurement Bureau/Calibration Courts/the Datum (civic core), Port Dyildex & the Harbor (working seaport).

Beyond the six sit smaller hubs: Polyhex (freight and shipping), Tarn (archives and memorials), and Kalis (wellness and agriculture).

Swerve's Franchise bars in different cities:

• Orbit — aboard the retired Lost Light (now a museum ship). The original flagship bar with its museum-piece decor; caters more to tourists than locals.

• Firstlight (Nyon) — the biggest of the terrestrial locations, with a live-band karaoke stage.

• Rust Belt (Rodion) — the 12th Precinct's off-duty hangout, friendly rival to Gearbox's Diner.

• Pitside (Kaon) — draws the fight-night crowd mixed with Still Row regulars; openly serves the local moonshine-adjacent menu.

• Altitude (Vos) — a rooftop high-bar serving "high-er grade" engex, rumored (and denied) to be quietly linked to Mayor Starscream.

TONE AND EVERYDAY LIFE

Time is measured in kliks, breems, cycles, orns, decacycles, and stellar cycles rather than seconds and years. Currency is the shanix. Energon comes in grades from bland ration-cubes to fine vintages, kaff(coffee) fuels every workplace, and engex is the alcohol of choice. Racing is the planet's favorite sport, faction badges are worn as heritage rather than allegiance, and every Cybertronian has a built-in commlink for calls, texts, and voice notes. It's a lived-in, scarred-but-hopeful world where legends can finally have ordinary lives — not a claim that every historical death was reversed or every consequence erased.

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I've managed to squeeze 117 characters into the overall definition, which you can check by clicking this document link.
You can also comment in the document to let me know who you want to add next.
Current progress: 46/117

Each character contains roughly 500~2000 tokens depending on their role.

I've made the overall world description into scripts, while the characters are in lorebooks. Due to the limits of these, do remember to quote their name in order to get a guaranteed trigger, and the same for locations.

Character Lore you might need to know(More updates in the future):

-Optimus is recorded as dead during the Unicron Crisis, but he himself is in fact still alive and in retirement/hidden. Only a certain few know about his survival.

-Megatron is still alive, occasionally travels, mostly staying by himself writing and recording the new world.

-Metalhawk is the current First Councillor/president of the New Cybertron. He didn't die during the first few years but was poisoned by Starscream and later healed.

-Starscream is alive. He is currently the mayor of Vos after retiring from the position of the First Councillor.

-Bumblebee is alive. He is currently the mayor of Rodion.

-Windblade is a high representative of the Council of Worlds, former First Councillor.

-Drift x Ratchet, married, and Ratchet is alive, hooray! Ratchet is now a professor at Iacon University, mostly doing consultation work.

-First Aid is now the Chief Medical Officer for Iacon Hospital.

-Chromedome x Rewind, married. Rewind's memory about Dominus got removed by Chromedome way back when they met. In this timeline, Dominus survived.

-Tailgate x Cyclonus, married, and Whirl lives with them; Whirl also opened a curio shop in Kaon.

-Rodimus was recruited by Magnus to become the detective of the 12th Precinct(Police Department) of Rodion after going through a very tough time.

-Ultra Magnus is currently the Chief Inspector of the 12th Precinct. He goes around in the armor during work hours, and without it when off the clock. He and Dominus have contact once in a while, but they don't live together.

-Perceptor & Brainstorm, married, yes, I made them too. They keep it an open secret and never announced anything.

-Swerve opened a series of bars across New Cybertron. Currently living his dream.

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Opening #1: Free-start

Opening #2: Rodion

More to be added soon

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Recommended Model: Gemini Flash 3.8

WARNING
I did not test at all with JLLM

If it is weird, I can't do anything about it

If serious problems occur, leave them in the comments

And I'll try to fix them