Is Mk48.io still online?

What is Mk48.io?

“Mk48.io is a multiplayer ship combat game. It is free to play online in a web browser with no install required. Start with a small warship and defeat rival players or collect floating barrels to earn upgrades to increasingly larger battleships, submarines, and aircraft carriers. Avoid torpedos and incoming shells. Team and chat with other players.”

In this directory, Mk48.io sits in the .io wave collection and is tagged io (56 games), naval (1 games), shooter (17 games) and open source (8 games).

How to play

1. 01Open mk48.io in a desktop or mobile browser. It is the official site; avoid “unblocked” mirrors.
2. 02The homepage doesn't say whether you need an account. Many games here let you play as a guest and register later to keep progress.
3. 03The homepage doesn't list controls, so we don't guess. Most games show a tutorial or a “how to play” screen on first launch.

Platform notes

Browser

Plays in the browser from mk48.io (our inclusion rule). The site says: It is free to play online in a web browser with no install required.

Account

Not stated on the homepage.

Mobile

Not stated on the homepage.

Status history

Per-check history started on Oct 29, 2026. Status changes across all games are in the status log.

Mk48.io: FAQ