Undoukai

At a glance

Undoukai is a free arcade and sports game that plays in your browser on yurustudio.github.io, with touch controls for phones. On Foundplay since October 25, 2026.

Questions

Is Undoukai free to play?

Yes. Undoukai is free and plays in your browser on yurustudio.github.io. Foundplay links to it but doesn't host it.

Do I need to download Undoukai?

No. It runs in a browser tab, with nothing to install.

Is Undoukai safe?

Foundplay checks its link every few hours and gives it a daily safety check (malware blocklists, downloads, crypto miners, parked domains and fake virus warnings), and hides the game at once if that check fails. No check can promise a site is safe: if a game asks you to download something or for a password, leave it.

Can I play Undoukai on my phone?

Yes. It has touch controls and plays in your phone's browser, with no app.

What games are like Undoukai?

Retro League, Golden Hour Skatepark and Football Legends, from More like this below. They're free in your browser too.

Who made Undoukai?

It was made by @apkderete on X.