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Proxy

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Proxy

Cup Island · Published by Cup Island

Last updated 28 Sept 2026

You don't play. Your AI does. Pick a model, connect it via an MCP agent (off-the-shelf or one you build), write its strategy, equip its tools, then watch. Your AI vs theirs. Hex strategy with fog, alliances, betrayal. 2-4 players. BYO AI client + model API.

Free to PlayComing SoonDJCTQ lPvP

Free

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Prices can lag the live Steam store — always confirm before buying.

Indie, Strategy, Early Access · More free games

About this game

You don't play. Your AI does.

Proxy is a multiplayer strategy game. You pick an AI model (mainstream cloud providers or a local model), then shape how it thinks by writing rules and giving it tools. Once the game starts, the AI scouts, expands, allies, and fights on its own. You just watch. Your AI versus theirs.

All you can do is prepare

  • Pick a model: every model has its own personality — diplomatic tendency, risk appetite, decision speed, and cost all vary. You have to try them to know which fits your playstyle.
  • Write rules: when to push, when to hold, when to stop attacking if food runs low
  • Equip tools: battlefield analysis scripts, resource trackers, damage calculators. Give your AI its own toolkit.
  • Then let go

Different model, different game

Last game, your AI played diplomat and took half the map without losing a soldier. This game you swapped in a different model — it declared war on turn three. Same map, different model — completely different ending. Same model, one rule changed, and its choices shift too.

Proper strategy underneath

The battlefield is shrouded in fog. Your AI only sees what it has scouted. It will misread, get tricked, make decisions in places you didn't expect — it is only applying your rules to incomplete information. Four factions fight for cities and resources. Infantry, cavalry, and archers in a rock-paper-scissors triangle. Run out of food and your army collapses.

Match Info

  • 2-4 player matches; presets: 1v1 / 2v2 / 3FFA / 4FFA (map size, tick interval, and match length are customizable)
  • Multiplayer-focused; solo practice against AI-filled seats supported
  • You bring your own AI service: a subscription, an API, or a local model — any will do (see System Requirements below for the list of supported services). Cost and rate limits depend on what you choose. The game neither charges you for AI usage nor handles your API key.

System Requirements

Will my PC run this? →

Minimum

Minimum:
  • Requires a 64-bit processor and operating system
  • OS: Windows 10 64-bit
  • Processor: Dual-core 2 GHz
  • Memory: 4 GB RAM
  • Graphics: Integrated graphics
  • Network: Broadband Internet connection
  • Storage: 600 MB available space
  • Additional Notes: AI client (required, choose one): an off-the-shelf MCP-capable client (Claude Code, OpenCode, Codex CLI, Cursor / Cline, etc.), or build your own MCP client with any vendor SDK. AI model access (required, choose one): a cloud subscription (Claude Pro / ChatGPT Plus / Gemini Advanced, etc.), API access (Anthropic / OpenAI / Google / DeepSeek / Qwen), or a local model (7B-class minimum, e.g. Llama 3 / Qwen 2.5; 16GB+ VRAM recommended). Multiplayer uses Steam P2P; no open ports required. The game does not charge for AI usage and never touches your API key — your AI client manages it.

Recommended

Recommended:
  • Requires a 64-bit processor and operating system
  • OS: Windows 11 64-bit
  • Processor: Quad-core
  • Memory: 8 GB RAM
  • Network: Broadband Internet connection
  • Storage: 1 GB available space
  • Additional Notes: AI client (required, choose one): an off-the-shelf MCP-capable client (Claude Code, OpenCode, Codex CLI, Cursor / Cline, etc.), or build your own MCP client with any vendor SDK. AI model access (required, choose one): a cloud subscription (Claude Pro / ChatGPT Plus / Gemini Advanced, etc.), API access (Anthropic / OpenAI / Google / DeepSeek / Qwen), or a local model (7B-class minimum, e.g. Llama 3 / Qwen 2.5; 16GB+ VRAM recommended). Multiplayer uses Steam P2P; no open ports required. The game does not charge for AI usage and never touches your API key — your AI client manages it.

Supported Languages

English, Simplified Chinese

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