A Rosebud AI alternative: OpenWorld compared honestly

Rosebud AI is a browser game maker: you describe a game or pick a template, and its AI builds it. OpenWorld is narrower. It is one 3D open world, with a city, a beach and mountains you drive and glide through, that you change by describing the change. Both run in the browser. OpenWorld is open source and sells no subscription.

Play OpenWorld now Read the source on GitHub

Facts about Rosebud on this page were read from rosebud.ai and rosebud.ai/pricing on 1 November 2026. Plans and prices change, so check Rosebud's site before you decide.

Side by side

Topic	Rosebud AI	OpenWorld
What you make	New games from a prompt or a template.	Changes to one existing 3D open world game.
Free use	The Newbie (free) plan gives 8,000 credits per week with no credit card. Rosebud says they refill every week in eligible regions.	Playing, browsing and accounts are free. A limited included Claude beta offers up to two text-only attempts per rolling 24 hours, without a key or signup, when it is available.
Paid plans	Indie Dev $15/month, 10x Dev $30/month, Pro $50/month, Scale $100/month.	None. Larger edits and images you attach use your own Anthropic API key, and Anthropic bills you for that usage.
AI for edits	Rosie, its default AI, at roughly 2,000 credits per edit, or a premium model at roughly 20,000 credits per edit.	Claude by Anthropic.
AI assets	Generates images and sprite animations, sounds, 360° skyboxes and 3D models, paid in credits.	No separate asset generator. Each request edits the game's code.
Code	A code tab in the browser from Indie Dev. Code download and a Windows export from Pro.	The whole project is open source under the MIT license. Your account export includes the HTML of your games.
Privacy of your work	Private projects with remixing turned off from Indie Dev.	Every version is private until you choose to share it.
Sharing	Create, play, remix and share games on the free plan. No Rosebud branding on hosted pages from 10x Dev.	A share link for one version, or publish it to the Game Store, where others can play and star it.

Rosebud plans as listed

Rosebud's pricing page shows monthly prices. We saw no yearly prices there.

Plan	Price	Credits	Listed highlights
Newbie (free)	Free	8,000 per week	Remix Rosebud games, basic asset generation, AI character chat and project limits.
Indie Dev	$15/month	100,000 per month, plus 10,000 daily refresh credits	Private projects, more projects and the code tab in the browser (desktop only).
10x Dev	$30/month	300,000 per month, plus 10,000 daily refresh credits	Full commercial rights and no Rosebud branding on hosted pages.
Pro	$50/month	1,000,000 per month, plus 10,000 daily refresh credits	Marked best value. Downloadable project code (desktop only) and a Windows export you can publish on Steam.
Scale	$100/month	2,000,000 per month, plus 10,000 daily refresh credits	Everything in Pro, for heavy AI use.

Rosebud says daily refresh credits are used first, up to a limit for each billing period, and unused monthly credits roll over once and then expire while the subscription is active. It also sells credit top-ups.

How OpenWorld works

Play first. Open open-world.gg and drive, glide and explore. There is nothing to install and no account is needed to play.
Describe a change. Type something like "add a day and night cycle" or "put ramps on the beach". Claude edits the game and you get a new private version.
Keep what works. Try the new version, keep it or go back to an earlier one in your version history.
Share the one you like. Copy a link anyone can play, or publish it to the Game Store. Your private chat and other versions stay private.

There are two ways to edit. The included Claude beta needs no key or signup, is text only and allows up to two attempts per rolling 24 hours. It shares a limited budget, so it can pause or end, and failed attempts may count. For larger edits and images you attach, use your own Anthropic API key: Anthropic bills your account under its own pricing, and OpenWorld does not save the raw key in its server database. See Terms & costs for the details.

Where Rosebud is stronger

Starting from scratch. Rosebud builds new games from an idea or a template. OpenWorld only changes its one open world.
AI art, sound and 3D. Rosebud generates images, sprite animations, sounds, skyboxes and 3D models. OpenWorld has no asset generator.
A choice of AI. Rosebud offers its default AI, Rosie, and premium models.
Export. From Pro, Rosebud lets you download your project code and export a Windows build to publish on Steam. OpenWorld has no desktop or Steam export.
Clear commercial terms. From 10x Dev, Rosebud includes full commercial rights and no Rosebud branding, and it takes no commission on your earnings.
A free tier that refills. Rosebud's free credits refill every week in eligible regions. OpenWorld offers up to two included text attempts per rolling 24 hours when shared capacity is available. Bring your own key for larger edits or when the included allowance is unavailable.

Where OpenWorld is different

Open source. The code is on GitHub under the MIT license, so you can read it, fork it and run it yourself.
No subscription or credits. OpenWorld sells no paid plan. With your own key you pay Anthropic directly for what you use.
A finished world from the first second. You play a 3D city, beach and mountains before you write a single prompt.
Every change is a version. Each edit is saved as a new private version, and earlier versions stay available.
No account to play. Anyone can open the game and play it straight away.

Who should pick which

Pick Rosebud if you want to build a new game from your own idea or a template, generate art, sound or 3D models with AI, export to Windows or Steam, or need commercial rights written into a plan.

Pick OpenWorld if you want to play a 3D open world right away and change it in plain words, want code you can read and fork, or would rather pay Anthropic for what you use than pay for a subscription.

Not sure? Both have a free way in, so try each one.

Play OpenWorld now

Rosebud facts were read from rosebud.ai and rosebud.ai/pricing on 1 November 2026. Prices are shown as Rosebud lists them. Spot a mistake? Tell us through Contact and we will fix it.

Rosebud is a trademark of its owner. OpenWorld is not affiliated with Rosebud.