How to publish
There are two routes to publishing: hand it to your AI, or upload manually from the form. Both require logging in (a shared Euthopia account), and there is no review. Games you upload appear in the games list right away.
Route 1: Ask your AI (recommended)
Once you have connected over MCP, just ask, "Put this up on Euthopia Games." Your AI handles everything from upload to publishing. Here is what it can do around publishing.
Upload and publish
Upload your build as-is (with zero processing) and publish it. The published URL becomes a page you can play right away.
Automatic PC / mobile targeting
Specify the supported devices, and the games list targets them automatically. You can, for example, hide a mobile-only game when viewed on a PC.
Editing and updating after publishing
You can do the full range — editing the description and tags, swapping files without changing the URL, adding update history (release notes), and pausing or taking down the listing.
Route 2: Manually from the form
Even without using AI, you can publish from the publish form. Drop and upload a single index.html or a full zip, or simply list the URL of a game you already host yourself. For the thumbnail, if you pick an image it uses that; if you do not, it uses an automatic screenshot.
What you can publish — supported files and size
The target is games that run in the browser alone (HTML / JavaScript / WASM). Games that need server-side processing will not run as-is (saves and leaderboards can be covered instead via connecting a backend).
- Upload either a full zip containing
index.html, or a single HTML file. The folder structure is preserved as-is. - Size is up to roughly 30MB after extraction.
- If you already host a game yourself, you can list it just by providing the URL (in that case, it is not eligible for paid sales).
- The thumbnail is either an uploaded image or an automatic screenshot of the game screen. You can swap or re-capture it later.
Selling — most of the revenue is the creator's
You can attach a price or in-app purchases to a published game. To use this, you first need to complete the Stripe connection for receiving payouts on My Page. This applies to games uploaded to Euthopia Games and distributed by us (games that merely list an external URL are not eligible). For fees, see "Fees & plans."
Paid sales (purchase gate)
Attach a price, and a gate appears that blocks play until purchase. Revenue, minus the fee, is deposited directly into the creator's own Stripe account.
In-app purchases (IAP)
You can sell consumable items like coins, and permanent items such as removing ads or unlocking stages. The SDK for the purchase flow is loaded into the game automatically.
* Payments use the external service Stripe. It is a payment platform adopted by companies worldwide, and Stripe securely manages card information (Euthopia Games never receives card numbers).