8,4Old School RuneScape
The classic sandbox MMO — playable in the browser and on mobile.
Cross-platform casual MMO you can play in a browser tab.

A light, friendly MMO built for short sessions. Cross-play between browser, PC and mobile with frequent, humor-filled seasonal events.
AdventureQuest 3D is a light, cross-platform MMORPG from Artix Entertainment that you can play in a browser and carry over to mobile or PC with the same character. It's built for accessibility: quick to pick up, low on grind pressure, and full of the studio's tongue-in-cheek humour and frequent events.
Combat is simple action-RPG fare and classes swap easily, so it suits short, drop-in sessions. It's free to play, funded by cosmetics and a membership. Veterans will find it thin, but as a friendly, low-commitment MMO it's an easy shout.



Getting into AdventureQuest 3D takes about a minute:
AdventureQuest 3D earns 7.0/10 in our review. We'd call it solid. You'll enjoy it for very low barrier to entry and true cross-platform; just go in knowing shallow compared to big MMOs. It plays right in your browser, so trying it costs you nothing.
Yes. AdventureQuest 3D is free to start — Cross-platform casual MMO you can play in a browser tab. There may be optional in-game purchases or premium tiers, but getting in costs nothing.
AdventureQuest 3D is available on PC, Browser, Mobile. It also runs right in your browser, with no download.
Yes — AdventureQuest 3D runs directly in the browser with no install.
AdventureQuest 3D was developed by Artix Entertainment and released in 2016.
AdventureQuest 3D is free to start — play right in your browser.
8,4The classic sandbox MMO — playable in the browser and on mobile.
7,4
7,2A polished cross-platform MMORPG built around classic raids — free to play.