Most guides about "AI + game development" stop at generating code. The part that actually takes time is everything after: packaging, testing on a phone, fixing the white screen nobody saw locally, writing the store page, releasing a fix without creating a duplicate listing.
We built that part as an MCP server for Klyo Games, a free browser-game portal. Here is the workflow, and what we learned about letting an assistant near a release button.
The server is remote, so there is nothing to install. In VS Code, add an HTTP server with https://panel.klyo.pl/mcp?profil=gry and sign in. The same endpoint works in Claude and other clients that support remote MCP with OAuth.
The first prompt we recommend is boring on purpose:
Check my Klyo connection and list my games. Do not change files or publish anything.
Two tools answer it: klyo_status (who you are, what you may do) and klyo_my_games.
klyo_game_requirements returns the production contract: what a game must contain to be accepted.klyo_game_scaffold returns a two-file skeleton on Klyo Kit: game loop, touch/mouse/keyboard/gamepad input, responsive canvas, sound without files, light and dark theme, saves, leaderboard, and solo, local or online-by-link modes. You write only the gameplay.klyo_upload_package uploads the ZIP and returns a preview address.klyo_game_diagnostics reports browser errors, missing assets and the quality-gate result. When the server cannot verify something (3D without a GPU), it says "unverified" instead of pretending.klyo_game_play plays the game on the owner's own device, after they click "Allow", and returns screenshots and game state.klyo_publish_game does For fixes, klyo_game_files + klyo_game_patch edit files of a version players do not have yet, guarded by file hashes, and klyo_release_version ships it under the same address. One game, one page, scores kept.
Full tool reference with the effect of each call: https://github.com/krastranseu-lang/klyo-games-mcp/blob/main/docs/tool-reference.md
Try the portal: https://games.klyo.pl/ · Developer studio: https://dev.klyo.pl/ · GitHub: https://github.com/Klyo-Games