Alternatives
Products that do what GREY DAY does
AI-built open world zombie survival game
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2019 · bot.land
- 2IM
I've posted this game here before, hopefully a repost is fine as the game has changed quite a bit (improved AI, improved mapeditor, much quicker gameplay, etc). Game is based on JavaScript/Canvas and WebSockets. On the browser side the map is pre-rendered (as a background image), just the mobile units/buildings and animations are dynamically rendered. The lobby server is made in node.js, but the game server is C++ for performance reasons (mainly the pathfinding). I found the C++ WebSocket libraries out there to be too difficult to use so I made my own based on the rfc. Overall I…
2022 · battle-of-flags.com
- 3AT
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
- 4AA
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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Jul 2026 · github.com
- 7EA
Hi all, I'm excited to share Eonfall with Hacker News Community! It's been 2-years in the making built by a 2 man team. Eonfall, is a new third-person co-op action game with rogue-lite elements built exclusively for the web! We've finally reached a release candidate state and set our official public release date for Jan 15th! The game's current version 5.0.0-beta is live and available to test play today! Unity game engine was used to develop the game along with other services to handle the backend, and Nuxt 3 + Nuxt UI to handle the front-end. We welcome any and all questions, feedback &…
2024 · eonfall.com
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Patience▲91The only mechanic is waiting. The only currency is time.
24d ago · patience.jordanshaw.com
- 19

- 20MB
Built and open-sourced in the era before AI. I’m sure you know where to find the code.
Apr 2026 · mehuleo.github.io
- 21IM
2022 · nassimslab.itch.io
- 22AN
2024 · flyingcometgames.com
- 23AS
I made an idle/clicker about running an AI startup. You start with a cat-vs-dog classifier and try to make it to AGI, but the NYT sues you for training data, Yann tweets that scaling is dead, and your fired ML engineer leaks the Slack.
May 2026 · game.trae.academy
- 24AN
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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