Your first game
How to publish an HTML5 game on klyo games
Sign in at dev.klyo.pl, upload a ZIP with index.html inside, play the game in the preview, describe it and press “Release to the catalogue”. The game gets its own address and a page in English and Polish right away.
Before you start
- A game that runs in a browser: a ZIP with index.html in its root, or a single HTML file, up to 100 MB.
- A free klyo account. The account you play with on games.klyo.pl opens the studio too.
- About ten minutes, most of it spent playing your own game.
Step by step
Open the studio and sign in
Go to dev.klyo.pl. Under “I already have a klyo account” press Sign in, or fill in the form next to it and press Create account. The first time you add something, the studio shows the rules: tick I have read and accept the rules and press Accept.
Upload the package
In the New game form choose your file in the field for the ZIP with the game. The studio unpacks it and within seconds checks the size, the files, the paths and third-party ad networks.
Play it before anyone else
The game opens in the preview. Switch between Desktop and Phone, try Full screen, or scan the code to play on your own phone; that address works only for you and expires after a day. Play for 15 to 30 seconds: the studio records in the background, and that round becomes the tile clip and the cover.
Describe the game
Press Works, describe and submit. Give the game a name of up to 30 characters (it becomes the address), a one-sentence tagline, a description in English of at least 25 words and, if you like, one in Polish for extra XP. Pick up to 3 genres and answer the 10 questions about the content. Have Claude or ChatGPT? Fill with your AI types the text while you watch.
Submit and release
Press Upload and publish the game. When the game card says the game is ready, press Release to the catalogue. It stands in front of players at once, and its catalogue page is usually built within a minute and a half. No clip yet? The card first asks you to Play and record a clip, because a game enters the catalogue with a clip.
After the release
A person from klyo plays every new developer's game. Until then it opens only for adult accounts and the ads next to it stay off. Plays and visits appear on the game card live.
If something goes wrong
The package is refused
The check always names the reason: index.html missing from the root of the ZIP, a package over 100 MB, or a third-party ad network in the code. Fix it and upload again.
The preview shows a white screen
Press Show what happened in the preview. It lists the files the game asked for and did not get, and the errors from the browser. The white screen guide walks through every cause.
There is no release button
The game needs a clip first. Press Play and record a clip, play for 15 to 30 seconds and the release button appears.
Common questions
How much does it cost to publish a game on klyo games?
Nothing. Publishing, hosting, the catalogue page, clips, leaderboards and statistics are free, and there is no exclusivity: the game can stay on other sites too.
How long does it take to publish a game?
Usually about ten minutes from the ZIP to the catalogue, most of it playing your own game. The catalogue page is built within about a minute and a half after the release.