GREY DAY is a mobile open world zombie survival game built entirely with AI tools by a solo developer. Survive, loot, and fight zombies in a shared world with real players. Real multiplayer — no bots. • Open world with real players • Block-styled graphics • Unlockable character skins • Optional rewarded ads for revival & boosts • Free to play on iOS & Android 📱 iOS: https://apps.apple.com/us/app/grey-day/id6770797698 🤖 Android: https://play.google.com/store/apps/details?id=space.zday.app
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Maker
📌
Hey Product Hunt! 👋
I'm the solo developer behind GREY DAY. I built this entire mobile game using AI tools — from the game engine to the server infrastructure.
GREY DAY is a free open world zombie survival game with real multiplayer. You'll run into real players while scavenging, not bots.
Would love to hear your feedback, and happy to answer any questions about the development process or tech stack!
📱 iOS: https://apps.apple.com/us/app/gr...
🤖 Android: https://play.google.com/store/ap...