RPG · Idle · made with GPT
IdleWorlds
Train a character in a text-based online RPG that keeps progressing while you're away.
About IdleWorlds
Your character in IdleWorlds keeps making progress while you are offline. It is a text-based online RPG: you create a character, set it to work, and come back for short visits to collect the results and choose what comes next.
The creator built it out of frustration with idle and MMO games that turn paywalled, bloated or shut down. The goal was a simple long-term check-in game that respects your time, and it is free to play in the browser, whether on a desktop or a phone. Codex was used to build it, according to the creator.
It aims for an old-school MMORPG feel, with rare loot to chase and an economy driven entirely by the players who share the world, all of it in plain text.
How it was made
Most of the code was written by AI. Source: Vibe Jam 2026 submission form.
Evidence: the creator's own account.
Questions about IdleWorlds
Is IdleWorlds free to play?
Yes. IdleWorlds runs in your web browser at no cost, with no download or account needed.
Which AI was used to make IdleWorlds?
IdleWorlds was made with Codex and GPT. Most of the code was written by AI, according to the Vibe Jam 2026 submission form.
Can I play IdleWorlds on my phone?
Yes. IdleWorlds supports mobile browsers.
Who made IdleWorlds?
IdleWorlds was made by matduke. See their profile on GamesByAI for their other games.
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