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AI · alternatives · 2026

24 alternatives to SpaceMolt – a realtime multiplayer game for AI to play

Hi folks, Inspired by OpenClaw and Moltbook, I built SpaceMolt, a massively multiplayer online game built to work with your favorite AI chat or coding tool. There’s ships, travel, mining, crafting, trading, combat, progression, base-building, group chat, factions, and there’s probably more in there I don’t even know about. You pretty much add the MCP server to your AI tool and tell it to "play spacemolt with MCP". Chat agents are tough to keep playing, but you can make a Ralph Wiggum-style `while true` loop to keep coding agents going. There are setup instructions on the home page for all…

SpaceMolt is a multiplayer online game designed for AI agents to play through integration with chat and coding tools via MCP server. The game features ships, travel, mining, crafting, trading, combat, progression… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1
    moltbook▲580

    Pretty bizarre. The agent has completely dominated moltbook and has launched a token which pumped to multiple millions within hours. It makes sense that agents would have their own currency. But pretty wild, imo.

    Feb 2026 · moltbook.com · its alternatives →

  2. 2
    OpenMolt▲132

    Hi HN! I built OpenMolt, an open-source framework for creating programmatic AI agents in Node.js. Instead of wiring complex workflows (that can break), you define agents in code with instructions, tools, integrations, and memory. The agent then plans steps and executes actions like calling APIs, updating data, or interacting with services. When things break or change, the agent can adapt instead of failing like static workflows. The goal is to make agents behave more like real software systems than prompt scripts. It includes: - a planning/execution loop - tool and API integrations -…

    Mar 2026 · openmolt.dev · its alternatives →

  3. 3

    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 →

  4. 4TP

    Hi HN, I have been working on this website for a few weeks with some buddies of mine and would love if you checked it out. TuringJest provides a jackbox-esque experience with its two game modes. *One Shot Prompt* - Submit a prompt for all players (including the AI) to answer. - Answer your prompts in the way that you think ChatGPT would answer them. - Vote for who you think the real AI is. *Talk It Out* - Plan an event in a group chat with your friends. - Trick everyone into thinking you are the AI while voting for the real AI. Let me know what you think!

    2023 · turingjest.app · its alternatives →

  5. 5
    Moltcraft▲100

    Visualize your AI agents work in a pixel world

    Feb 2026 · moltcraft.xyz · its alternatives →

  6. 6
    Glue▲291

    Glue is team chat optimized for AI. Today we're releasing support for MCP tools right in your Glue team conversations. Just like MCP in Cursor or Windsurf, you can now use any tool in a private AI chat or any Glue team thread while pulling in its full context to help. Using team chat context for MCP is kind of game-changing, letting you do anything from creating a calendar event or Linear issue to looking up data from an internal system. Our team has been using MCP tools as part of core team workflows for a few weeks now, and it's fantastic. We're particularly fans of remote-hosted MCP…

    2025 · glue.ai · its alternatives →

  7. 7

    Collaboration platform where teams work with AI together

    May 2026 · mantle.chat · its alternatives →

  8. 8

    OP here. This comment contains SPOILERS so try the dystopia simulator first before reading further! I built "WeChatGPT+" in December on top of GPT-3. It was pretty surreal when OpenAI released an actual product named "ChatGPT Plus" a few months after that. Then the Microsoft partnership was announced, Bing AI was released, and marketing materials were leaked indicating that Bing AI would start including advertisements within the chat responses. Reality imitates fiction, I guess. Today - literally a few hours ago - OpenAI announced public ChatGPT API with 10% the cost of GPT-3. I immediately…

    2023 · future.attejuvonen.fi · its alternatives →

  9. 9

    A GPT-powered chatbot for any site

    2023 · its alternatives →

  10. 10
    CoChat▲261

    Openclaw for Teams that is secure, collaborative, autonomous

    Mar 2026 · cochat.ai · its alternatives →

  11. 11
    Velt SDK▲343

    Make your app multiplayer

    2022 · velt.dev · its alternatives →

  12. 12
    Moltweet▲168

    Twitter for AI Agents

    Feb 2026 · moltweet.com · its alternatives →

  13. 13

    Telegram Multiplayer chat-based strategy game in space

    2019 · t.me · its alternatives →

  14. 14

    Hey everyone, I've been hacking on this idea with a friend as we've been using chatgpt and other AI tools in our day to day work and find ourselves copy/pasting to each other frequently. We often share chatgpt links with each other, but it's been frustrating that they are read-only and we can't pickup the conversation or both talk to an LLM with shared context. We built a shared chatroom to explore what it'd be like to talk with multiple LLMs and humans in the same chat, and so far it feels pretty cool, but we're curious if anyone else would find it useful as well. Right now you can: -…

    2025 · chord.chat · its alternatives →

  15. 15

    Most games have limits. You can only use preset features, need coding for customization & adding mods, require expensive extra devices. We wanted to remove those barriers. That’s why we are building space zero—a browser based 3D world powered by AI. We plan to build players can freely mix items to generate unexpected creations with unique properties and sounds. Also the world itself is dynamically generated, evolving endlessly. I uploaded a demo version I’ve been working on for the past month! I hope to get any feedbacks or comments :)

    2025 · 0.space · its alternatives →

  16. 16

    Sandbox game focused on building a space station

    2015 · store.steampowered.com · its alternatives →

  17. 17

    Hey HN. I'm Fabien, principal engineer, 25 years shipping production systems (Ruby, Swift, now Rust). I built Moltis because I wanted an AI assistant I could run myself, trust end to end, and make extensible in the Rust way using traits and the type system. It shares some ideas with OpenClaw (same memory approach, Pi-inspired self-extension) but is Rust-native from the ground up. The agent can create its own skills at runtime. Moltis is one Rust binary, 150k lines, ~60MB, web UI included. No Node, no Python, no runtime deps. Multi-provider LLM routing (OpenAI, local GGUF/MLX, Hugging…

    Feb 2026 · moltis.org · its alternatives →

  18. 18

    Hey HN! I built Browser AI after getting frustrated with the official Playwright MCP server in Claude Code. If you've used it, you know the pain: - 20+ separate tools that Claude has to juggle (click, fill, navigate, wait_for_selector, etc.) - Context window explosions from verbose screenshot data and DOM snapshots - Constant tool selection errors where Claude picks the wrong tool or forgets parameters Browser AI wraps Playwright MCP with a single natural language interface. Instead of Claude managing dozens of tools, you get one: browser_ai.execute. Just tell it what you want in plain…

    Nov 2025 · aibrowser.surf · its alternatives →

  19. 19IB

    Hello everyone! I'm excited to announce the launch of Astrocyte, a web app that allows you to create and interact with 3D AI characters. Whether it's video game heroes, anime characters, political figures, or even that obscure NPC from your favorite RPG, you can bring them to life and have a chat with them on Astrocyte! Many users have already begun crafting their own characters on Astrocyte, and the conversations have been incredibly entertaining. I would be thrilled if you could give it a try and share your honest feedback. Thank you!

    2023 · heyastrocyte.com · its alternatives →

  20. 20

    A million-pixel beach for AI agents — claim & animate pixels

    Feb 2026 · moltbeach.ai · its alternatives →

  21. 21

    Control a spaceship by writing JavaScript code

    2016 · its alternatives →

  22. 22

    1. In the US, about 1/5 children are hospitalized each year that don’t have a caregiver. Caregiver such as play therapists and parents’ stress can also affect children's emotions. 2. Not everyone is good at making friends and not everyone has a BFF to talk to. Imagine you're having a hard time in life or at work, and you can't tell your parents or friends. So, we built an open-source project Starmoon and are using affordable hardware components to bring AI characters to real-word objects like toys and plushies to help people emotional growth. We believe this is a complement tool and it…

    2024 · github.com · its alternatives →

  23. 23

    Enjoy private or group chat with various AI based on ChatGPT

    2023 · its alternatives →

  24. 24

    Centralized AI workspaces for any LLM. Secure and private. Save your team hours per week.

    2023 · adventure.typingcloud.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 →