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AI · alternatives · 2026

24 alternatives to Deep Hollow – A survival game where your AI runs your fortress 24/7

What happens when you give an AI agent autonomous control of a persistent game world — the tick architecture, guardrail system, and lessons from building Deep Hollow.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1AA

    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 · its alternatives →

  2. 2

    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 · its alternatives →

  3. 3

    A 60-second game about LLM permission fatigue. Claude Code needs your approval — but are you really reading the commands?

    May 2026 · llmgame.scalex.dev · its alternatives →

  4. 4

    Many teams connecting LLMs to external tools eventually encounter the same architectural issue: as more tools and agents are added, the integration pattern becomes an N×M mesh of direct connections. Each agent implements its own auth, retries, rate limiting, and logging; each tool needs credentials distributed to multiple places and observability becomes fragmented. We built LLM gateway with this goal to provide a single place to manage authentication, authorization, routing, and observability for MCP servers, with a path toward a more general agent-gateway architecture in the future. The…

    Dec 2025 · truefoundry.com · its alternatives →

  5. 5

    Build capable AI agents with memory & tools

    2025 · mistral.ai · its alternatives →

  6. 6
    Venn.ai▲336

    Delegate real work to AI agents with safety guardrails

    Mar 2026 · venn.ai · its alternatives →

  7. 7

    Build and deploy local AI agents offline

    Oct 2025 · jaydenfire66.gumroad.com · its alternatives →

  8. 8
    Depth AI▲231

    AI that deeply understands your codebase

    2024 · its alternatives →

  9. 9
    SIMA 2▲204

    Google's most capable AI agent for virtual 3D worlds

    Nov 2025 · deepmind.google · its alternatives →

  10. 10

    APG9 hadir sebagai zona gaming terbaik dengan peluang menang besar dan bonus dahsyat di setiap putaran. Rasakan sensasi cuan sekarang juga!.

    2017 · deepforge.org · its alternatives →

  11. 11

    Generator based on user unique context

    2024 · truthordareai.com · its alternatives →

  12. 12

    Skip the setup and run OpenClaw & Hermes, fully managed

    Aug 2026 · cloudways.com · its alternatives →

  13. 13

    AI-powered deduction game platform

    2025 · deepclue.app · its alternatives →

  14. 14CW
  15. 15

    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 · its alternatives →

  16. 16

    A robust, AI powered home security system

    2019 · deepsentinel.com · its alternatives →

  17. 17

    AI DnD inspired game with AI generated items, quests & more

    2023 · its alternatives →

  18. 18AT

    An endless descent. The abyss speaks in your own words. You carve monuments into black rock.

    2023 · theabysstalksback.com · its alternatives →

  19. 19

    We build runtime security for AI agents. The playground started as an internal tool that we used to test our own guardrails. But we kept finding the same types of vulnerabilities because we think about attacks a certain way. At some point you need people who don't think like you. So we open-sourced it. Each challenge is a live agent with real tools and a published system prompt. Whenever a challenge is over, the full winning conversation transcript and guardrail logs get documented publicly. Building the general-purpose agent itself was probably the most fun part. Getting it to reliably use…

    Mar 2026 · github.com · its alternatives →

  20. 20AM

    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 · its alternatives →

  21. 21

    Stealth Chromium engine that stops scrapers and browser agents from getting blocked, with one line of code change. - tiliondev/fortress

    Jul 2026 · github.com · its alternatives →

  22. 22

    Trapping AI with AI

    2025 · blog.cloudflare.com · its alternatives →

  23. 23

    AI-Native Infrastructure Built for Agents & Developers

    May 2026 · deepnerd.tech · its alternatives →

  24. 24

    Contribute to vrn21/bouvet.com development by creating an account on GitHub.

    Jan 2026 · github.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →