3kh0 Alternative - Play Free Unblocked Games at School
3kh0 is probably the best known open-source project in school gaming, which is both its strength and the reason its mirrors keep vanishing. Schplay is not a fork of anything and is not published on a shared code host.
Play these right now
What 3kh0 is
3kh0 is an open-source unblocked games project distributed largely through GitHub Pages and GitLab Pages, with a cluster of associated domains it cross-promotes. Because the code is public, anyone can fork it and publish their own copy in a few minutes, which is why there are so many near-identical 3kh0 sites at different addresses.
That openness is genuinely useful. It is also the thing that makes any single 3kh0 address unreliable.
Why github.io and gitlab.io mirrors die together
Forking is fast for students and equally fast for anyone trying to stop them. Because it is trivial to spin up a games page on a code host, districts increasingly block github.io and gitlab.io at the host level rather than playing whack-a-mole with individual forks. One rule takes out every copy at once, including the original.
Forks also decay. A copy taken a year ago keeps pointing at asset paths and game files that the upstream project has since moved, which is why so many mirrors load the menu fine and then fail on the game itself.
What Schplay does differently
Schplay is a maintained site on its own domain rather than a fork someone published and walked away from. Game files, thumbnails and pages are served together from schplay.com, so a game either works or it does not — it will not half-load because an upstream repository reorganised. The library is 280+ titles.
3kh0: common questions
Which 3kh0 mirror is the real one?
There is no single authoritative one. The project is open source and widely forked, so many addresses are legitimate copies of varying ages.
Why does a 3kh0 mirror show the menu but fail to load games?
Usually a stale fork still pointing at files that moved in the upstream project.
Is Schplay open source?
No. It is a maintained site on one domain, which is the trade-off: you cannot fork it, and it also will not go stale on you.