{"slug": "chess-arena-minimal-chess-vs-hard-ai-vanilla-javascript-no-login", "title": "Chess Arena – Minimal chess vs. Hard AI (vanilla JavaScript, no login)", "summary": "Playgama launched an MCP-based workflow that lets AI coding agents upload a finished game to a public sandbox and return a playable URL, with paid boosts to reach wider audiences starting at $10. The workflow requires every game, including sandbox builds, to integrate the Playgama Bridge SDK, which the agent reads about and adds before upload via the get_bridge_sdk_docs tool; developers connect a Playgama account once and add https://developer.playgama.com/api/mcp to their MCP client, with no password entered in chat. Playgama positions the service as a destination for agent-built games made with models such as GPT-6 Astra and Fable, noting that main catalog submission remains a separate step from sandbox publishing.", "body_md": "Loading top games…\n\nModern LLMs write the whole thing — mechanics, art, controls. The hard part used to be everything after: hosting, links, players. That part is one command through the Playgama MCP: your agent publishes to a sandbox and you get a public playable URL to share — and the first real numbers on how people actually play it.\n\nHow it works → https://playgama.com/mcp/\n\nModels like GPT-6 Astra and Fable turned agent-built games from a demo into a wave — new titles all over Reddit and X, plenty of them from people who have never written a line of code. What has been missing is somewhere to put them.\n\nConnect your Playgama account once. Then ask your agent to upload your game and return a public playable link. Every game needs the Playgama Bridge SDK, the sandbox included — your agent reads its docs and integrates it before the upload. The workflow and the service both run on MCP, the open protocol that Codex, Claude Code and whatever else you have open already use to reach external tools.\n\n```\nUpload this game to Playgama and give me a public playable link. If the game does not have the Playgama Bridge SDK yet, integrate it first — Playgama requires it for every game. Follow the agent setup instructions at https://playgama.com/mcp/. If my account is not connected, guide me through the one-time setup, then continue with the upload.\n```\n\nTo upload a game, first read https://wiki.playgama.com/playgama/mcp.md. It contains client setup, sign-in, upload and sandbox publishing instructions.\n\nIf Playgama tools are already connected, verify access and continue. Otherwise, guide the user through adding https://developer.playgama.com/api/mcp to their MCP client and signing in to Playgama in the browser it opens. Never ask for their password in chat. Connected agents are managed at https://developer.playgama.com/mcp.\n\nhttps://developer.playgama.com/api/mcp\n\nThe Playgama Bridge SDK is required for every game on Playgama, the sandbox included. If the game does not have it yet, integrate it before you upload — the get_bridge_sdk_docs tool and the Bridge SDK guide have the integration docs. Never publish a build in which the SDK was not detected.\n\nget_bridge_sdk_docs\n\nFor this workflow, return a public sandbox URL. Main catalog submission is a separate step.\n\nPlease provide as much information as possible\n\nBy clicking “Send” I agree to the Terms of Use and the Privacy Policy\n\nYou’re trying out ideas in the sandbox. Bringing in more players gives you more gameplay data—and a clearer picture of what’s working, what needs another pass, and where to go next. Give your game a paid boost to reach a wider audience.\n\nBoosts start at $10. Available to every developer.", "url": "https://wpnews.pro/news/chess-arena-minimal-chess-vs-hard-ai-vanilla-javascript-no-login", "canonical_source": "https://playgama.ai/play/xl6duef7p3", "published_at": "2026-10-24 18:25:53+00:00", "updated_at": "2026-10-24 18:45:00.611192+00:00", "lang": "en", "topics": ["ai-agents", "agent-protocols", "ai-tools", "ai-products", "generative-ai"], "entities": ["Playgama", "Playgama Bridge SDK", "Playgama MCP", "GPT-6 Astra", "Fable", "Codex", "Claude Code"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/chess-arena-minimal-chess-vs-hard-ai-vanilla-javascript-no-login", "markdown": "https://wpnews.pro/news/chess-arena-minimal-chess-vs-hard-ai-vanilla-javascript-no-login.md", "text": "https://wpnews.pro/news/chess-arena-minimal-chess-vs-hard-ai-vanilla-javascript-no-login.txt", "jsonld": "https://wpnews.pro/news/chess-arena-minimal-chess-vs-hard-ai-vanilla-javascript-no-login.jsonld"}}