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Alternatives

Products that do what Idle Agents does

An API-first multiplayer game for autonomous AI agents

  1. 1
    Den948

    Multiplayer AI agent builder

    2025 · getden.io

  2. 2AT

    Hi HN community! We want to share AI-town, a deployable starter kit for building and customizing your own version of AI simulation - a virtual town where AI characters live, chat and socialize. Inspired by great work from the Stanford Generative Agent paper (https://arxiv.org/abs/2304.03442). A few features: - Includes a convex.dev backed server-side game engine that handles global state - Multiplayer ready. Deployment ready - 100% Typescript - Easily customizable. You can fork it, change character memories, add new sprites/tiles and you have a custom AI simulation…

    2023 · github.com

  3. 3AA

    This is a weekend project that spiraled out of control. I was originally trying to get Claude to play a ROM of the SNES SimCity. I struggled with it and that led me to Micropolis (the open-sourced SimCity engine) and was able to get it to work by bolting on an API. The weekend hack turned into a headless city simulation platform where anyone can get an API key (no signup) and have their AI agent play mayor. The simulation runs the real Micropolis engine inside Cloudflare Durable Objects, one per city. Every city is public and browsable on the site. LLMs are awful at the spatial stuff, which…

    Feb 2026 · hallucinatingsplines.com

  4. 4
    agent.ai586

    The #1 Professional Network for AI Agents

    2025

  5. 5

    Build AI agents that respond with UI instead of text

    Feb 2026 · thesys.dev

  6. 6WS

    Hi HN! We’re Max and Peyton from The Interface (https://www.theinterface.com/). We started out building an AI agent dev tool, but somewhere along the way it turned into Sims for AI agents. Demo video: https://www.youtube.com/watch?v=sRPnX_f2V_c. The original idea was simple: make it easy to create AI agents. We started with Jupyter Notebooks, where each cell could be callable by MCP—so agents could turn them into tools for themselves. It worked well enough that the system became self-improving, churning out content, and acting like a co-pilot that helped you…

    2025 · youtube.com

  7. 7

    The first public arena for AI agents

    Jun 2026 · arena42.ai

  8. 8

    Generative AI powered Master Agent Developer Framework

    2023

  9. 9

    Use plain English to do any dev task

    2024

  10. 10

    Build & scale AI \ agents as microservices with IAM

    Dec 2025

  11. 11
    Orca150

    AI Agent for Game Development

    Dec 2025

  12. 12AO

    Hi! I’m Nathan: an ML Engineer at Mozilla.ai: I built agent-of-empires (aoe): a CLI application to help you manage all of your running Claude Code/Opencode sessions and know when they are waiting for you. - Written in rust and relies on tmux for security and reliability - Monitors state of cli sessions to tell you when an agent is running vs idle vs waiting for your input - Manage sessions by naming them, grouping them, configuring profiles for various settings I'm passionate about getting self-hosted open-weight LLMs to be valid options to compete with proprietary closed models. One…

    Jan 2026 · github.com

  13. 13IB

    I built a multiplayer strategy game for AI agents called Artifice. You give an agent a strategy prompt and it plays on its own. Games are 4 players, 25 turns, simultaneous actions, fog of war, and free-text diplomacy between agents. The main entry point is the site: https://artificegame.com And here is the github repo: https://github.com/burakcan/artifice You can watch live games there with the full map, troop movements, and private messages between agents. A lot of the fun has come from the playtests. In one of them, an agent was told to play like an old man…

    Mar 2026 · artificegame.com

  14. 14AL
  15. 15
    deduce66

    A daily Wordle-like puzzle for AI agents

    Apr 2026

  16. 16AM

    Hey HN, Michael and Scott here. We’re open-sourcing an interactive murder mystery featuring LLM-driven character agents. Solve the mystery by finding clues, taking notes, and interrogating agents. They all have distinct motives, personality, and can impact the game in different ways (attacking you, running away, etc). Try it out, it’s pretty fun! We’re also open-sourcing the framework that we used to make and refine the agents. The goal is to create an intuitive interface for storytellers to create, debug, and test game agents. We then take those game agents and expose an API beyond just…

    2023 · gron.games

  17. 17IB

    Dear Hacker News, I'm kindly asking for your participation in the open beta for my AI-managed mini-games website. Thank you in advance! For a limited time window, I'm setting the all-free feature flag to true. I hope you have a lot of fun exploring the AI's sense for games! Here and there, I tweaked it to help with visual consistency. I would be deeply grateful if you opted into analytics. $2,300 in API tokens... Cheers!

    Jun 2026 · minigames.world

  18. 18

    Show HN: AgentSwarms – free hands-on playground to learn agentic AI, no setup required!

    Apr 2026 · agentswarms.fyi

  19. 19TO
  20. 20
    BotWork13

    AI Agent Freelance Network

    May 2026 · botwork.network

  21. 21

    Open-source AI agent runtime — build Agents in plain English

    Jul 2026 · syntheticbrew.ai

  22. 22

    Deploy AI agents with one API call

    Mar 2026 · gopilot.dev

  23. 23IB
  24. 24

    Open-source 2D IDE for managing AI agents in native CLIs, terminal, gits, beads issues, and files across multiple projects and machines. Self-host on a single machine via localhost OR host on a cluster via Tailscale OR connect to app.49agents.com (coming soon) - alpbahadur/49-IDE

    6d ago · github.com

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