Alternatives
Products that do what Replicant Space – an HTTP API-based game based on the Bobiverse books does
During Christmas 2025, I found myself burnt out from work. The last few years had been hard, and multiple redundancies saw the company I loved reduce down to just a handful of remaining staff. As a coping mechanism, I kinda disassociated for a while - throwing myself into my personal projects. AI was destroying the passion I had for coding. I tried to find some meaning in development again. After months of throwing myself into creating this game, I slowly fell back in love with coding. I taught myself a bunch of technologies that I was previously unfamiliar - Astro, Flask, Redis, Celery,…
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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
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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
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- 5AS
I built this with Claude cause I always wanted to tinker with a simulation economoy and I love space themes. A space-economy sim where nothing is scripted. A few hundred autonomous ships each run their own planner. Some chase the best trade route, take a delivery contract, refuel, retrofit at a shipyard, or dock so the crew can rest before morale tanks. Markets price everything off supply with shortage-urgency multipliers, factions tax and subsidize, populations migrate when they're unhappy, and stations that go broke get abandoned and rot. It started as an Elixir/Phoenix prototype, but…
Jul 2026 · github.com
- 6AS
I didn't realize Universe Sandbox ran on MacOS, and I was in the mood to play around a bit. Some functions it's got: - Random system generation - Sonification is super fun too - Habitability Simulation (Just for fun, don't cite this please) - Replacing, spawning, deleting objects I've had tons of fun building this, so I hope someone else can share the joy. It's free and runs in the browser. I'd love to hear any feedback. I think this is at a state where I might leave it as it is, but if people are interested in other features, maybe I'll keep working on it. I've kept saying I'll stop working…
Dec 2025 · luna.watermelonson.com
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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
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2016 · github.com
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Hi HN, I'm a solo dev working on a space RTS game set in the Milky Way galaxy, containing currently known stars and exoplanets with their real characteristics, the remaining stars are procedurally generated. In the online mode, all players are in the same universe, and the world is persistent. You compete with other players to take back the Solar System and end your exile. Players can always retreat to the periphery to regain strength and rebuild their fleets as needed. It also includes an procedural spaceship generator that allows creating your own spaceship designs. Spaceships visuals…
Feb 2026 · stardustexile.com
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2019 · arnaud.at
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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…
Feb 2026 · spacemolt.com
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2014 · cartegram.com
- 15AM
For the past few months, I’ve been hacking together Hive: a retro-style virtual workspace for devs who love building in public. It’s a bit rough but already has some cool features: - AI-powered presence to represent you when you’re offline. - Live video streaming to showcase your work in real time. - VS Code integration to broadcast your status live. - GraphQL API for full customization and hackability (such as using your own agents) - Web3 donations to support and get support from other builders. In this demo, you can claim a desk by walking up to it and pressing E, then personalize it with…
2024 · joinhive.devmode.digital
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Hi HN! This is my first game — something I’ve always wanted to do. It’s a small browser game built with Phaser 3, React, and the phaser template (https://github.com/phaserjs/template-react-ts/). I made it in 2 days (like 8 hours in total real time) using gemini-cli. About 90% of the code was generated with AI, but I learned a lot by making fine tweaks. It only works on PC since it’s a typical WASD + R (reload) shooter. I’d love feedback on: - Gameplay (is it fun, too hard?) - Ideas for new features Thanks in advance! ps: I used cubes as a prototype, but now I kind of…
2025 · cubic-zombies.pages.dev
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2015 · swizec.github.io
- 18AM
Hi everyone! I'm one of the developers behind this project. I wrote it with my two brothers, Daniel and Ricardo. For years the three of us have been curious about how multiplayer games work, which is why we decided to work on this project. Our goal was to gain a deep understanding of how different players can share the same 3D space, which is why we wrote our own tiny game engine instead of using something like Unity. We wrote the engine using C++ and OpenGL, and we then compiled it to WebAssembly using Emscripten so that it would run effortlessly on web browsers. We are really excited about…
2022 · play.moonlightmuseum.io
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After losing my job, I decided to channel my energy into creating my own sci-fi adventure game. While I’ve previously released a VR game, I’ve been working as a regular software developer for the past few years. The game, Star Mission: Remote Sectors, is a first-person exploration and survival experience set on an uncharted alien planet. Players use superhuman abilities like telekinesis to uncover anomalies, navigate environmental hazards, and survive in hostile conditions. A big inspiration for the game was classic sci-fi movies and the optimistic vision of Star Trek. The journey has been…
2024 · store.steampowered.com
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I was tired of games like Mafia Wars and wanted a phone-based MMO Strategy game where hundreds of players could actually engage each other on a 2D map, so I made one. I track the state of the game each night so we can display a visual timeline of territory controlled by each alliance. (example: http://bit.ly/q5CFhU) I use jQuery mobile for the front end so it runs on most phones (via Phonegap) as well as modern web browsers. The server side is handled by Java Servlets and MySQL. This started as a hobby - I'm not a developer by training - so I am very interested in feedback, suggestions, and…
2011
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I am a 50-year-old who left a FAANG Engineering Manager job to build a sci-fi game. I just released Outsider, a sci-fi narrative game with multiple endings. If you want to support my work, the game is now 15% off (https://store.steampowered.com/app/3040110/). I've always wanted to create a game. I moved from Brazil to the US to work at Big Tech, but after a career of customer focus, mission alignment and 360-degree feedback, I wanted to experience solo game development. While FAANG can be soul-crushing at times, I had a great manager and an amazing team. The pay and…
Nov 2025
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Stack: WASM + Rust + Macroquad I saw that a company had posted a cool job ad where you had to apply directly via a REST API. That gave me the idea to gamify my resume as well. Since I was bored, I vibe coded a bit and voilà, the result was ready. I think it's something new and fun that might put a smile on people's faces. (Please don't spam my email address, but feel free to send me an email with your high score if you want!)
Feb 2026 · breezko.dev
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Hi HN! I'm working on an open-world multiplayer space sim with submarine-warfare-inspired combat. Crew a ship, haul cargo, run heists, hunt your foes with passive and active sensors. Browser-based, free, no install. Some of its features: - Submarine-style passive sensors. Contacts start as a bearing line (direction, no distance), resolve into an uncertainty circle, then into a full track. You triangulate over time by moving. - Silent running. Cut your emissions and witnesses can't ID you. - Newtonian flight. No drag, no auto-brake. Flip 180° and burn to stop. - Boarding combat. Dock with…
Apr 2026 · everestdrive.io
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Jul 2026 · vampirolife.com
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