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Browser MMOs and MMORPGs you can play free, no download

5 games · Updated October 10, 2026 · Most played first

Yes, some MMOs run in a browser with no download. World of Claudecraft is a browser MMO, Hollowlands is a survival MMO in an endless world that also plays on phones, and Salty Seas is an open-world pirate MMO where you sail, fire broadsides and board.

Aeralis is a fast third-person shooter MMO, and MU Online Season 4 brings the classic MU Online MMORPG to the browser, with phone support.

World of Claudecraft cover

#1 on this list

World of Claudecraft

Browser MMO

Playon worldofclaudecraft.com (opens in a new tab)Details
  1. 1
    World of Claudecraft coverPlay World of Claudecraft on worldofclaudecraft.com (opens in a new tab)

    World of Claudecraft

    Browser MMO

  2. 2
    Hollowlands coverPlay Hollowlands on hollowlands.andreelias.dev (opens in a new tab)

    Hollowlands

    Survival MMO in an endless world

    Phone-friendly
  3. 3
    MU Online Season 4 coverPlay MU Online Season 4 on muveyra.com (opens in a new tab)

    MU Online Season 4

    Classic MU Online MMORPG in your browser

    Phone-friendly
  4. 4
    Play Salty Seas on saltyseas.io (opens in a new tab)

    Salty Seas

    Open-world pirate MMO: sail, fire broadsides, board

  5. 5
    Aeralis coverPlay Aeralis on playaeralis.com (opens in a new tab)

    Aeralis

    Fast third-person shooter MMO

    Keyboard

Questions

Are there MMORPGs you can play in a browser?
Yes. World of Claudecraft and MU Online Season 4 run in a browser tab with nothing to install, and so do Hollowlands, Salty Seas and Aeralis.
Can I play a browser MMO on my phone?
Hollowlands and MU Online Season 4 are marked Phone-friendly. Aeralis needs a keyboard, so it's best on a computer.
Are these games free?
Yes. Every game here plays free in a browser tab. A few show ads or sell extras on their own sites.

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