io.github.opengameapp/browser-game

opengame-browser-game-mcp

Is the io.github.opengameapp/browser-game MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-31.

Local tools for planning and validating focused browser-game prototypes.

alive probed 2026-11-14 · unchanged since 2026-10-31

4tools

1.1ktokens in Claude Opus 5.5

0.5 %of Claude's 200k window

0.4×the median server

154 msto initialize

23 msto list tools

Run it: npx -y opengame-browser-game-mcp@0.1.3 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: opengame-browser-game-mcp 0.1.3
Capabilities: tools
Instructions: none
Of a 1M window: 0.1 % of a 1M context window
Count: 1.1k tokens in Claude Opus 5.5, exact, measured 2026-10-17. With the Claude Code prefix mcp__…__ on each tool name: 1.1k. The o200k_base estimate is 565. Counted again when the tool definitions change. Method.
Repository: https://github.com/opengameapp/OpenGame-showcases
Website: https://opengame.app/
Registry: active, updated 2026-07-28 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.86×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
opengame_create_game_blueprint	415	223	39 %
opengame_recommend_browser_runtime	305	164	29 %
opengame_validate_game_brief	179	96	17 %
opengame_list_showcases	153	82	15 %

Other registry entries on npmjs.com, the ones next to this name; all of them.

Servers that mention browser.

The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.

Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.