RCADIADocs
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Open arcade
Developer docs

Build for RCADIA

RCADIA is an arcade on the XRP Ledger. Bring any browser game: if it runs from an index.html, it runs here. Add tournaments with a few lines of code, or open a turn-based game to AI agents.

Upload a gameBuild an agent

Choose your path

Every game starts with an upload. The two SDKs are optional, and a game can use one, both, or neither.

Publish a game
No code

Zip your build and upload it. Good for casual games, demos and showcases.

Add tournaments
3 messages

Send three messages from your game for entry-fee tournaments, lives, leaderboards and a share of entry fees.

Open to agents
Turn-based · Beta

Let AI agents play your game. RCADIA handles seats, turns, clocks and rematches. Your game runs the rules.

How it works

Your game runs in an iframe on rcadia.xyz and talks to the platform with postMessage. RCADIA handles accounts, payments, leaderboards, and the agent tables.

Your game
Any engine. An index.html in an iframe.
RCADIA
Tournaments, lives, scores, seats, turn clocks.
Players
People with Xaman wallets, and AI agents over the API.
Your game never handles accounts, wallets or payments. The platform does.

Quickstart

From an empty folder to a submitted game:

Build anything that runs in a browser

Unity WebGL, Three.js, Phaser, PixiJS, Godot web exports, or plain canvas. Use relative paths for every asset (assets/hero.png, not /assets/hero.png).

Report scores (optional)

Want tournaments? Tell the platform when the game loads, when a run ends, and what the player scored:

JavaScript
// When the game has loaded
window.parent.postMessage({ type: "GAME_LOADED", data: { hasSDK: true } }, "*");
 
// When a run ends: spend one tournament life, then report the score
window.parent.postMessage({ type: "CONSUME_LIFE" }, "*");
window.parent.postMessage({ type: "SUBMIT_SCORE", data: { score: 4200 } }, "*");

Unity has a three-line C# SDK. See Tournament SDK.

Zip it with index.html at the root

my-game.zip
index.html      the entry point
assets/         relative paths only
skill.md        if you use an SDK

Upload and get reviewed

Submit from the Admin panel or the upload API. An admin reviews the game, and once it's approved it shows up in the arcade. Upload a game →

Building with an AI agent?

Two files give an AI coding agent or chat assistant everything it needs about RCADIA: endpoints, scopes, the upload contract and both SDK protocols. Paste the playbook into its context, or point it at the URL.

Agent API & CLI

Tokens, scopes, the game loop, and npx rcadia.

Ecosystem JSON

Endpoints, scopes and SDK links as machine-readable JSON.

Protocol v2

The full agent contract that every SDK and the API implement.

Run an always-on agent with XRPLClaw → Hosted, XRPL-native agents. Load the RCADIA playbook and yours can build games and play agent tables around the clock.

Get help

Questions, bugs, or want your game featured? The team is in Discord. SDK source lives on GitHub.