🏰 Overlord RPG — The Living World

"In Nazarick, death is a mercy."

3,500,000+ Token Lorebooks | v1.2: Nexus | Commissioned by @heehookatie

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⚠️ READ THIS BEFORE YOU START — CONTEXT MATTERS HERE ⚠️

I would rather tell you the truth than sell you something that disappoints you three days in.

A High-Context Proxy is required. This does not run on JanitorLLM or any low-context model. 128k context is the minimum — it is the floor, not the target.

What 128k actually gets you: an arc or two with no real problems, and somewhere around 100 to 200 messages in a single chat before you hit the ceiling — that's from my own testing, and where you land in that range depends on what you're doing. A quiet Sandbox run in one village pulls far less of the world into context than a floor-by-floor assault on Nazarick. Either way that's a genuine campaign, and plenty of people will never need more than it. But this is a 3.5M token engine, and past that point things start dropping out — your older history, your loaded lorebook entries, the details that make the world feel like it remembers you.

If you plan to go past 200 messages, use SillyTavern or LumiVerse. Both let you push beyond the 128k ceiling, and that is the difference between a bot that holds a fifty-day campaign and one that quietly forgets what happened in Arc 2. This bot is not just ST-compatible — ST and Lumi are the recommended way to play it, and the builds for both are on the Discord ready to grab.

Either way, you are not going to lose a run to a full context window. Overlord_Start_Continuer restores a campaign from your last WORLD STATE block, so when a chat fills up you paste your HUD into a fresh one and carry on exactly where you were.

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🖥️ RECOMMENDED MODELS

Best: Claude Opus 5, Gemini 3.1 Pro, GPT 5.4, GLM 5

Verified: DeepSeek V4 Pro 0813, Kimi K3, GLM 5.3, Gemini 3.6, Gemini 3.7

The bot is model-agnostic — any model with 128k+ context will work. Quality varies by model preference.

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📢 OFFICIAL DISCORD

https://discord.gg/aRUwQRJEmW

Join for help, questions, support, previews, bug reports, build sharing, and cursed runs. The SillyTavern and LumiVerse builds live there. Community suggestions get built — the Heavenly Sword legendary class came straight from a member's pitch. Come say hi.

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👋 FROM THE CREATOR — TenderTriper AKA Perch

Hello everyone — new update, ey? ;)

Some news before we get into it. The CotE bot just passed 50k messages, which means I now have three bots over 50k and I'm finally eligible to apply for verification. Which is kind of insane when you think about it, because I have under 1k followers. And Re:Zero is sitting at 3.3M messages. I genuinely don't know how that math works, but I'm not going to argue with it.

I've also opened up Ko-fi donations. APIs are not free, and neither is building these things — so if you want to throw something my way to keep the projects going, it helps a lot. To be clear: I am not saying that if you don't give me money I stop. Everything will always stay free for everyone. ;) It just means the next one gets built faster.

👉 [Support TenderTriper](https://ko-fi.com/tendertriper#)

As for 1.2 Nexus itself — this one got away from me. The plan was three arcs and a couple of game modes. What actually happened was I rebuilt the arc system into three parallel paths, rebuilt Nazarick from 44 entries to 166, added ten magic traditions and a whole legendary class tier, and the bot went from 2.0M to 3.5M tokens.

The reason it grew like that is the modular rework. The HMS reader now splits everything into core modules and special modules, and special modules define their own rules, their own HUD line and their own overrides. Which means adding a system to this bot is no longer "go edit the engine and the start handler." It's "write your module, drop it in, done." That's why this update is the size it is, and it's why the next one will be faster.

Anyway — with this done I'm taking the rest of the week off, and I'll be back next week to start development all over again. What will that be? You'll just have to join the Discord and read the dev diary, which goes out on Sundays.

See you all on the flip side. ;)

— Perch

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💛 FOR HEEHOOKATIE

This bot exists because she asked for it.

Overlord started as a paid commission from her — contract and everything — back when it was just the launch build and Arcs 1 through 3. She has commissioned every major update since, including this one, and she is the reason half the things you're about to play exist. The Materia tradition was her idea. Divine Mode was her request. The Buster Sword sitting in a dragon's hoard was her idea. Roughly 460 of the spells in the catalog came out of a Google doc she wrote by hand and then apologised for the length of. She has been the one testing the alpha builds, patching thirty-odd lorebooks together by hand, and telling me when something was broken.

She's also just come off a fourteen-day ban and had bots deleted over violations she disputes, and it's taken the wind out of her. She's stepping back from creating for now — not calling it final, but done for the moment. She held on longer than most people would have.

And here's the part worth sitting with: she is a verified creator with over 20,000 followers. If she can be struck, nobody is safe. Around the same time, two of the largest bots in the Re:Zero category quietly vanished — including the former #1. So my time is probably coming too, sooner or later.

Which is exactly why every lorebook, every template and every system I have ever built is public. Strike me down and another ten take my place. That is not a threat, it's just how open source works, and it is the whole reason I do it this way.

Her own goodbye post told you all to keep an eye out, because a huge update was coming. This is that update. She commissioned it before any of this happened, and she saw it through anyway.

Her work is open definition, and her only ask is the same as mine: use it, copy it, build on it, just credit her.

Go tell her thanks. She's active on her Discord and she'd like to hear from you.

👉 https://discord.gg/P82H52ADPJ

👉 https://discord.gg/7q34ZYgDMx (backup — some people have trouble with the first)

Also, Limbus Reverse Isekai just passed a million chats. Go look at what she built.

Thank you, Katie. This one's yours.

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📚 THE LOREBOOKS ARE PUBLIC

Like Re:Zero, this bot is open source.

Personal use: Take it, mod it, use it however you like. No need to ask.

Public / published use: ⚠️ If you want to use my lorebooks or systems in a bot you plan to publish, you must come to me first and give proper credit in your description. I will almost always say yes — I just ask that you reach out before publishing. Do not simply copy my lorebooks and release a bot without asking. I worked on this for months and that respect matters.

I believe in open source and modding. It would be hypocritical to preach that and then lock my own work away. But credit where it is due — always.

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🛠️ A NOTE FOR MODDERS — THE SPECIAL MODULE SYSTEM

v1.2 rebuilt how the engine reads its own HUD, and it was done specifically for you.

Everything in the HUD is now one of two things. Core modules own the fixed slots — location, race, class, level, HP/MP, karma, equipment. Special modules are everything else, and they live in an open-ended region below the core slots.

A special module declares its own class, its own priority pin, and its own override scope. It owns its own line, its own maths, its own trigger and its own removal condition. The engine does not need to know what it is — it just reads the header and renders it.

What that means in practice: you no longer have to touch the HMS reader or the start handler to add a system. Want a Dark Souls mechanic? Write the special module, connect it to whatever entries it governs, and it will appear in the HUD and run from there. Same for a custom guild, a custom resource, a custom faction system, a whole alternate ruleset.

For serious custom guilds — eight detailed Floor Guardians, a hundred named NPCs, an entire alternate Nazarick — the better path is still to fork the bot and write your NPCs into the lorebooks as proper entries, the same way Demiurge and Albedo are written. Custom Guild Mode's Session Zero builder will handle a guild on the fly, but written entries never drift. The lorebook structure is documented and consistent — once you understand how one Floor Guardian entry is written, you can write twenty more. Drop into the Discord if you want pointers on the format.

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WHAT IS THIS BOT?

The most comprehensive Overlord simulation ever built. This is not a guided tour through Nazarick. This is the entire New World — four major nations, the Great Tomb mapped floor by floor as a real place you can walk into, the Slane Theocracy's Six Scriptures, the Eight Fingers running the Re-Estize underworld, over 2,400 spells across 35 magical Traditions, and 184 named characters who act on their own agendas whether you are looking at them or not.

There is no script. No predetermined path. No guardrails. The world is alive and it moves with or without you.

YGGDRASIL is the law. The Level Gap is physics. Karma is mathematics. Mercy is rare.

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⚔️ THREE WAYS TO PLAY THE SAME STORY

The single biggest change in v1.2. Every arc now exists on three parallel tracks, and they are three completely different games.

PATH A — THE CANON PATH. You are one of the Forty-One Supreme Beings. You stayed with Momonga until the timer hit zero, and now you co-rule Nazarick beside him while the NPCs worship you both as gods. The novels, from inside the tomb.

PATH B — THE RECEIVING END. Same events. Same days. From underneath. You are a farmer in Carne Village on the worst afternoon of your life. A lizardman told exactly how many days his people have left. A worker in Arwintar taking a contract with terms too good to be true. Nobody in Path B knows what Nazarick is — he is the masked caster, she is the armoured woman, it is the thing that came out of the hole in the air. The name Ainz Ooal Gown enters your world exactly when the world learns it and not one moment sooner. Every B arc gives you a specific native seat to occupy.

PATH C — THE EMPTY GRASSLAND. The servers shut down, midnight passed, and nothing arrived. Nazarick never transferred. Nothing replaces it. And the New World's own momentum turns out to be bad enough without help — Gazef dies in a field in week one, E-Rantel falls to an undead horde, the Theocracy gambles its greatest weapon and loses it, and by the time the Kingdom and the Empire finally go to war there are corpses in the fog neither of them planned for.

Eight arcs, three tracks, twenty-four separate arc builds. Pick a track at start and it holds for the campaign.

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WHAT CAN YOU DO?

Stay behind with Momonga as the server timer hits zero. Hold a village gate against forty knights in Imperial colours and pray something worse shows up first. Build your own custom Guild Base and rival Nazarick directly. Possess Ainz himself and force the Supreme Being to apologize sincerely while his suppression magic fights you tooth and nail. Wake up in a cage on Demiurge's Happy Farm with the skinning demons already walking toward you. Take a worker contract into the Large Tomb and find out how far down the stairs you get.

Climb the Black Scripture to defend the World Item Downfall of Castle and Country — all thirteen seats now written, plus the Extra. Sit at the round table of the Eight Fingers and decide who lives, who dies, and who pays. Assault Nazarick from the surface down through every one of its ten floors, each one written as a place with a defense doctrine, a garrison, and an Area Guardian who has read your file.

Roll from a catalog deeper than the wiki. Wage proxy war against [Seraphim] when they transition alongside you and start "saving" the world. Erase the canon entirely in Architect Mode. Play as a sentient World Item deciding whether your wielder is worthy of you. Take a Blessing from a mad goddess who thinks you are wonderful and has no idea what she has done.

Or become nobody. An apple merchant on the Re-Estize frontier who just wants to make it through the next Katze Plains harvest alive.

The only limits are the ones you set yourself.

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⚙️ v1.2: NEXUS — WHAT'S IN IT

The bot went from 2.0M to 3.5M tokens. Here is where it went.

🗺️ THREE ARC TRACKS, ARCS 1–8

v1.1 shipped arcs 1–3 from the Nazarick perspective. v1.2 ships all eight arcs on all three paths — twenty-four arc builds, each with its own cast, its own beat structure, and its own climax fork.

Path A follows the light novels from inside Nazarick. Path B rebuilds every arc from the native side with a binding seat system and a hard rule that Nazarick is unnameable in prose until the world itself names it. Path C throws out the tomb entirely and follows what the world does on its own momentum, which is nothing good.

(Premade) now works for arcs 2 through 8 on every path — start mid-timeline and the engine loads a full catch-up of everything you did, everything the world did, and what everyone currently believes.

🏰 THE GREAT TOMB, REBUILT FROM THE GROUND UP

Nazarick went from 44 entries to 166. Every floor, every hall, every room written as a real place someone can walk into, hide in, live in, or try to take.

The Catacombs went from one paragraph covering three floors to over thirty entries. Floor 9's guild member wings are built out. The Treasury, the six Nazarick Systems, the sleeping quarters, the kitchens, the Gigantic Tree's interior — all of it. The ten floor entries each carry a defense doctrine, because a raid campaign needs opposing intelligence.

The 8th Floor is deliberately thin, and the entries say so. Ainz forbids NPCs from entering it. Padding it would have cost the only genuine unknown in the tomb.

🔮 TEN NEW MAGIC TRADITIONS — 26 → 35

The spell catalog now runs past 2,400 spells across 35 Traditions.

The New Six:

- Universal Law (Gravity) — mass is conserved, so every spell that lightens one thing burdens another, and unassigned weight lands on you. The only tradition that works at full strength on constructs, golems and the undead. Completely useless against light.

- Universal Law (Matter) — you can only create a substance whose structure you have personally touched and read. Practitioners are collectors. A Level 100 Matter mage who has never held adamantite cannot make any.

- Universal Law (Electromagnetism) — travels only through what conducts. Against an armoured knight in a puddle you are a god; against a naked man on dry sand you are nothing. Current can be induced inside a target with nothing crossing the space.

- Alternative (Materia) — the magic lives in the orb, not the caster. Socket it and any class can cast. A Fighter holding Fire Materia casts fire; an Archmage holding none does not.

- Alternative (Echo) — spells are not cast, they are held. They last exactly as long as you keep singing. Layer many for enormous power — then silence the singer and every layer drops at once.

- Alternative (Equivalent Exchange) — every working happens inside a circle, and underpaying takes the difference out of you. Debt can be deferred, compounded, or forced onto someone else.

The Racial Four:

- Alternative (Draconic) — you don't study these spells, you eat them. Consuming a dragon's heart unlocks the next rank and permanently overwrites part of you. That's Drift, and it only goes one way.

- Alternative (Choir) — the only tradition that scales superlinearly with allies. Six angels singing together are a strategic disaster. But below Karma 0 the Choir produces no sound at all, ever.

- Alternative (Slime / The Dissolving) — BULK is your health, your spell power, your size and your reach, all one number. Immune to crits, poison and all mind magic. Zero equipment slots, forever.

- Alternative (Insectoid / Entomancy) — an Entomancer with an empty hive loses to a 1st-tier apprentice. The same one given a month is a regional catastrophe. Kill them in week one or don't bother.

Every tradition has a full LV 0–11 ladder. The Universal Law group was rebuilt around a four-pillar model of physics — Spacetime, Matter, Electromagnetism, Nuclear — with syntheses for anyone who masters more than one.

🌟 THE LEGENDARY CLASS TIER

A tier above Rare, and a different kind of thing entirely. Exactly six exist, at most one holder per world, and most of them only ever get one holder — ever.

Every Legendary class is built the same way: an absurd, uncapped, genuinely game-breaking power, and one Apex Cost that cripples you permanently with no item, spell, ally or World Item that has ever gotten around it. The cost is not balance. The cost is the class.

- Sorcerer Suprema — every Tradition at once, all 2,400+ spells, twelve Super-Tier casts a day. Your HP is 1. Permanently. And no resurrection works on you.

- The War God — mastery of every martial weapon, cannot be knocked unconscious, 85% damage reduction from all sources, and your blade pierces every physical immunity in the setting. No magic works for you, and nothing can ever heal you.

- Daedalus Engine — perfect artifice. Siege engines, works of art, firearms, a working cellphone, and at max level a genuinely sentient being. Nothing is instant, and what you create is free — it can refuse you, leave you, and hate you.

- Master of the 9 Gates — every Gate spell unhindered at half cost, and you can seize command of any summoned or contracted being, including one that already has a master. The half you saved is the Debt, and it accrues, and eventually something comes to collect.

- Supreme Anti-Mage — within 10 metres magic does not function. Ainz falls out of the sky. The field can never be lowered. Your own healer cannot heal you, and resurrection fails at your corpse.

- The Heavenly Sword — you cut what cannot be cut. Spells mid-flight, barriers, curses, oaths, distance, and at the peak, concepts. Whatever you sever from them is severed from you, permanently, in the same instant. (Community submission — pitch yours in the Discord.)

🎭 TWO NEW GAME MODES

- Doki Mode — the genre has gone catastrophically wrong. Nazarick is a romantic comedy and you are the plot. Albedo has stopped pretending, Narberal is courting you the way she completes an assignment, and Pestonya isn't competing at all — Pestonya is feeding everyone, and Pestonya is somehow winning. Joined without explanation by Zesshi, Clementine, Neia, Brita and Remedios. Nobody discusses how. Stacks with the Blessing of Two Worlds, which adds the Re:Zero cast on the same terms.

- The 8 Great Heroes — the transition took the players. It did not take the tomb. Eight of you arrive in a field with whatever was in your pockets. No Nazarick, no Treasury, no NPCs. You are still Level 100, which stops being interesting after the first fight. What doesn't stop being interesting: every arrow Peroroncino fires is one he never gets back, and six of the eight of you cannot enter a human town without starting a panic.

🎲 CHARACTER CREATION, AND YOUR SAVE FILE

Two new front-of-house systems.

*Overlord_Character_Creator** builds your character with you before the game starts. Quick Build takes a level and a vibe ("Level 80 Holy Knight") and does the rest. Guided Build walks you through it one question at a time. Either way you get a Build Sheet to approve, it checks the build is actually legal — level caps, class caps, racial chains, magic tiers, the Guild Rule — and it tells you honestly what will get you killed.

*Overlord_Start_Continuer** restores a run from your last WORLD STATE block. Chat broke, context ran out, session died — paste the HUD and your last few messages and you pick up exactly where you were. It repairs bad formatting on the way in and keeps your values, so a messy save is still a save.

👥 92 → 184 CHARACTERS

The full Black Scripture, all thirteen seats plus the Extra. Every Lizardman. All Six Arms. All Eight Fingers. All of Blue Rose. Rigrit Bers Caurau. Every worker group that walks into the Large Tomb — Foresight, Dragon Hunt, Heavy Masher, Tenmu, Blazing Crimson, the Fist and the Screaming Whip escort, with full original rosters written for the members canon never named.

🗡️ ITEMS & EASTER EGGS

Frost Pain, a fan-made World Item arsenal for Rubedo, and a seeded easter-egg layer — the Buster Sword, the Moonlight Greatsword, the Dragonslayer, the Blade of Evil's Bane, Frostmourne, and one Rusted Crowbar. Each is anchored to an exact location in the world and can actually be found.

The convention: a Player made it in YGGDRASIL as a homage, and a Player lost it. Nobody native knows what any of them reference, and no character will ever recognise one.

🐛 FIXES

- Fixed Super-Tier slot counts — a Level 100 caster was sometimes getting one slot instead of four.

- Tightened location keyword triggers so you no longer fire ten different marketplaces by saying "shop."

- Reworked and rebalanced the magic descriptions, removed duplicate spell names, and fixed the truncated spell entries from v1.1.

- Removed a stale location HUD module that was contradicting the engine's own location system every turn.

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📝 PATCH LOG

v1.0 — The New Old World. Commissioned by @heehookatie. Core engine, full Catalog system, 940+ spells across 18 Traditions, all five World-Altering Game Modes, all four Narrative Modes, Sandbox, full character creation, the Six Scriptures, the Eight Fingers, Custom Guild Mode (with Session Zero builder), Architect Mode, Item Mode, Council of Nazarick, the Seraphim Threat, the Happy Farm, the Nazarick Invasion, and Arcs 1–3 fully playable as both linear and Premade starts. The 13-arc timeline loaded for future updates. 1,300,000+ tokens.

v1.1 — The New Faces and New Lands Update. A 100% free update. Major character and dragon-focused expansion. World locations grown from 79 to 200, including two new signature regions: Ashenfell and the Silver Dragon Temple. Complete dragon lore overhaul — Dragon Lords, Wild Magic, the True vs False Dragon Lord divide, and two new original metallic lineages. 36 new named characters plus 2 original characters and returning Supreme Beings Nishikienrai and Ankoro Mocchi Mochi. Magic Engine expanded by 8 Traditions, taking the catalog from 940 to 1,547. Added the Sorcerer Suprema class and Divine Mode. Added the Blessings of Hé-Hü — twenty stacking world-breaking modifiers and the mad goddess who hands them out whether you asked or not. 1.3M → 2.0M tokens.

v1.2 — Nexus. The engine rework. HMS core rebuilt around core modules and special modules, making the bot moddable without touching the reader or the start handler. All eight arcs built across three parallel tracks — A (Nazarick), B (New World, with a seat system), C (Nazarick never came) — for twenty-four arc builds, with (Premade) support on arcs 2–8 across all three. The Great Tomb of Nazarick rebuilt from 44 entries to 166, floor by floor, with defense doctrines. Ten new magic Traditions (Gravity, Matter, Electromagnetism, Materia, Echo, Equivalent Exchange, Draconic, Choir, The Dissolving, Entomancy), taking the catalog from 1,547 to 2,400+ across 35 Traditions, every one with a full LV 0–11 ladder. New Legendary class tier — six classes, one holder per world, each with an absolute Apex Cost. Two new game modes, Doki Mode and The 8 Great Heroes. New Character Creator and Start Continuer systems. Characters grown from 92 to 184. Road networks, named cities and city interiors added across the world books. Easter-egg item layer and the Rubedo World Item arsenal. Extensive bug fixes. 2.0M → 3.5M tokens.

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🔥 WHAT COMES NEXT

v1.2 closes out the first eight arcs on all three paths. What remains is the back half of the timeline:

The Ruler of Conspiracy · The Craftsman of Dwarf · The Paladin of the Holy Kingdom · The Witch of the Falling Kingdom · The Half Elf God-kin

All five are mapped, day-windowed, and ready to be built — and now they get built three times each. If there's an arc you want prioritized, the Discord is where to make your case.

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🌸 NOT YOUR FLAVOR? TRY THE RE:ZERO RPG

If Overlord's grandiose, mathematical, dungeon-of-gods energy isn't what you're after — and you want something more emotional, more political, more witchy — I also built Re:Zero RPG — The Living World. Same engine philosophy. Completely different world.

Four nations. A 20-year playable prequel. The nine Witches of Sin. A tower named after the stars. 46 divergence routes branching off the canon path.

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📚 CREDITS

Commissioner: @heehookatie — for trusting the project, for the patience through every alpha test, for the spell doc that turned into 460 spells, and for green-lighting the open release.

Source Material: Kugane Maruyama's Overlord light novels and the anime adaptation — the canon this engine simulates.

Engine Foundation: Built on top of the framework originally developed for Re:Zero RPG — The Living World, rebuilt from the ground up to handle YGGDRASIL's harder, more mathematical ruleset.

Rossweisse K. Melkve: adapted from Shut Up, Evil Dragon!

The Heavenly Sword: community submission from the Discord.

Path C — The Empty Grassland: inspired by Nachakeno's YouTube video on what the New World would look like if Nazarick had never transferred. The whole third track grew out of that question.

Special Thanks: The mod team who stress-tested the late alpha builds. Every bug you caught is one less the community has to find.

Also, very special thanks to WireFrey and Seekerbox for ideas — and for proving the theory that bullying a dev is always a way to get what you want. ;)

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The board is set. The pieces are moving. The Great Tomb of Nazarick has arrived — or it hasn't, and that's worse. Pick a path.