What this is

World of ClaudeCraft is a complete classic-era MMO you can play right now in your browser, host yourself with one command, and even train AI agents to play. It is free, open source, and live at worldofclaudecraft.com.

One shared world runs in three places, all from the same game core:

• the authoritative multiplayer server, the live world you play at worldofclaudecraft.com, where Postgres-backed accounts share one persistent realm,
• the offline browser world, a local single-player Sim you get from the dev server, useful for development and for reading the game core end to end,
• the headless RL env, where Python drives the real game through a Gym interface.

Same seed, same world, everywhere. Much of what you see is still drawn from code at runtime, and the rest is a curated asset set that ships with the project, so a fork runs out of the box.

Highlights

• Nine classic classes, each with a full classic-era-style kit that gains ranks as you level, plus a full talent system (three specs per class).
• An open world with a second act: the classic climb from Eastbrook Vale through Mirefen Marsh to Thornpeak Heights, the besieged Farshore starter island off the vale's coast, and, through a thinned seal beneath the northern mountains, the Veiled Hollow and the realms beyond it, from the Drakelands dunes to the level-cap frontiers. One connected quest storyline starts with the Gravecaller conspiracy and marches on into the new lands.
• Instanced dungeons at every stage of the climb, from five-player elite runs to a solo crypt, with elite scaling, AoE boss mechanics, class-archetype loot that collects into tier sets, and a Heroic difficulty tier with richer rewards, plus open-world world bosses and a ten-player raid finale.
• Rift portals, the procedural endgame: ranked portals tear open across the world and lead into seed-generated rift floors, capped by the hand-authored Infernal Citadel set piece, with rare, epic, and legendary loot riding on the rank of the clear.
• Scalable delves, a small-group mode for one or two players plus an AI companion, rebuilt from randomized chambers each run across Normal and Heroic tiers.
• Rideable mounts across rarity tiers, from the stablemaster's Valorsteed to heroic-boss reins and a saddle-broken brood raptor, with a show-jumping race course at the stables.
• The Reliquary, a collection journal whose shelves (Conquerors, Professions, Horizons) track the boss trophies, masterwork marks, mounts, skins, and titles you bring home.
• Prestige ranks past the level cap: XP keeps counting at max level and converts into a leaderboard-visible prestige rank.
• Ranked PvP across two arena maps: 1v1 and 2v2 ladders, a livelier 2v2 Fiesta mode, and Protect Yumi, a 3v3 and 5v5 objective mode. Ranked play pays Honor, which buys a PvP-only gear set that never out-scales dungeon loot in PvE.
• Card Duel, a quick head-to-head card game hosted in town.
• A Book of Deeds: an achievement journal of cosmetic titles, badge borders, and Renown, with per-zone Chronicles kept by in-world Chronicler NPCs and a lifetime leaderboard.
• A deep professions economy: four gathering trades feed ten crafts, from cooking and alchemy to jewelcrafting, weaponcrafting, and enchanting, with tiered tools, town workstations, masterwork quality, and commissions, all feeding a player-driven World Market and the Ravenpost mail service.
• Real multiplayer: parties and raids, guilds, trading, duels, tap rights, party-split XP, whispers, away status, and a Dungeon Finder with role queues and premade listings.
• Authored in code, not in a 3D editor: terrain, water, weather, town layouts, real-time shadows, and effects are generated at runtime, and the models that do ship are built by procedural factories and a curated asset library rather than hand-sculpted.
• Localized into 22 locales through a deterministic, sim-emits-keys pipeline.
• A companion wiki at /wiki, generated straight from live game content so it cannot drift from the world it documents.
• Native apps on every platform: signed desktop installers for Windows, Linux, and macOS with automatic updates and optional Steam achievement mirroring, plus iOS and Android builds, all sharing the browser client and the same online world.
• Scales to the machine you have: graphics presets and an automatic frame-rate governor trade visual richness for smoothness, and are held to a fairness rule that keeps them from ever hiding something a player reacts to.
• Headless RL environment with Gymnasium bindings, reward shaping, and a benchmark mode.
• $WOC utility, fully optional: wallet linking for holder flair, Daily Rewards, the cosmetic WOC Store, and a player-to-player item marketplace (built, ships disabled), all non-custodial; the game never sells power. The details live in Web3 below.

Screenshots

Lantern-light in Mirefen Marsh at night	A dungeon pull goes loud under the green torches
A crowded hour on the live world	Every leaf burns gold on the Amberfall road
Rift warnings roll in on the Palmreach road	Snowbound lamplight in the Frostveil Reach

Weather is biome-driven and render-only, so it never touches the deterministic sim:

Clear over the Vale	![Rain over Mirefen Marsh](https://raw.githubusercontent.com/levy-street/world-of-claudecraft/HEAD