AI-Made Simulation Games on itch.io

A short incremental game about little workers gathering resources on different planets.

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Mow lawns in the hills west of Tokyo in the summer of 1973, in a quiet job sim where the sun drains you and the shade recharges you.

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Rise from a workshop to the mayor's chair in a German free city around 1400.

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A Chinese-language pixel life sim with branching timelines, mostly coded with Codex.

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A dark-comedy household management game on a fake retro family computer: feed the family, chase reward points, outrun the debt.

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A 3D life sim about surviving on the streets of Kyrgyzstan, coded with ChatGPT.

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Care for a cat and merge materials into beds and toys for a small cottage.

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A stick-figure town life sim whose page says an AI agent designed and coded it.

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A browser simulation game whose code was largely written with AI tools such as Claude Code and Codex.

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Found a murim sect on an unclaimed mountain, raise its disciples and step into a hand-controlled ink-drawn arena fighter yourself.

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One kitchen torch, one very hungry critic: caramelize crème brûlées in a tiny Paris bistro without burning them, before the critic torches you.

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A real Famicom/NES game about running a chip fab from 1971 to AI superintelligence, wrapped for phone browsers. The developer says it was built entirely inside the Codex app, and lists Codex on the team.

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You are the dungeon: dig deeper, fill your halls with monsters and traps, and outlast the adventurers who come for your Core.

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A free feudal sci-fi sandbox strategy RPG for the browser: lead a minor noble house across a living campaign map and fight real-time squad battles. The developer says Claude Code writes the code.

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Tap machines to make screws, grow a factory and launch rockets across six stars in this free browser idle clicker; its developer says Claude Code implements it and Codex reviews.

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An idle-incremental cave game: point a torch into total darkness, and whatever it lights stays lit for good.

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A five-minute satire of the AI-written workplace: as COO you decide which company texts to ship unread and which to fact-check before they go out. The developer says the code was written with Claude Code.

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Romania, 1998: process ghost reports on a Windows 98-style workstation. The anomalies don't follow the rules.

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Help little demon PIP run a Halloween costume shop in a human town, matching costumes to customers' clues, in English or Traditional Chinese. The developer says Claude wrote the code and tests.

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Five days to get a village kiosk ready for the St. Martin's lantern parade, the bonfire and everyone who wants hot cocoa afterwards.

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An incremental fishing cove on a rock in the sea: haul lines, hire a crew and grow it up to the lighthouse.

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Load cars onto a seven-car carrier trailer step by step, made by a working car-carrier driver who says Claude Code writes nearly all of its code.

No download needed

A cozy falling-sand factory game: an exiled alchemist digs, sorts and transmutes soil into gold, then builds machines to do it.

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A satirical browser game: you are the “AI”, really one guy in a bedroom in India, answering customers fast and robotically enough not to get caught.

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A tiny pixel god-game: tribes grow from a single campfire into civilizations while you watch, or meddle with god powers.

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A cozy cooking game at a night market stall, where the torches have to stay lit for the customers to stay happy.

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A pixel-art tram driving game on Amsterdam's tram line 2: stop on the mark, keep to the limits and enjoy the views. The poster says Claude Code did all the work, from the code to the sprites.

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A free 2D roller-coaster sandbox with physics: draw the track, hit play and see whether the train makes it. The developer says it was vibecoded, first in Claude chat and then in Claude Code.

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A free browser demo of a pixel-art lizard ranch: stun and bag wild lizards on short runs, then sell them or breed them for rare inherited patterns. The developer says Claude Code wrote the code, with the demo built in one day.

No download needed

A 1920s fishing and exploration game around an uncharted archipelago: chart the islands, fill the hold and get home before the rum-runners come out after dark. The developer says most of the code was written with Claude in Claude Code.

Demo available

Stack everyday household things as high as you can from a five-year-old's eye level; its developer says Claude Code built it almost on its own in two days.

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A browser time-attack prototype in which you steer a sports wheelchair by pushing each wheel separately; the developer says ChatGPT wrote the spec and GitHub Copilot implemented it.

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A cyberpunk ramen shop in the browser: balance richness, spice and sweetness to match each customer's order. Made for Gamedev.js Jam 2025 and, the developer says, written largely with Cursor.

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Work the copy desk of a 1970s-style newspaper and type six photo assignments into a finished edition before the presses run. The credits say the code was written by GPT Astra through Codex.

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A first-person sim in which you run a video game store in a 1995 shopping mall, from haggling over trade-ins to surviving a midnight launch. The developer says almost all of it was written by Claude Code.

Demo available