Best Free MMO Games for Browser in 2021!

Relive your favorite moments from Naruto in Naruto online, a free-to-play browser-based MMORPG officially licensed by Bandai and based on the storyline of the anime. Play as one of the anime's popular characters, such as Naruto Umuzaki or Sakura Haruno -- voiced by their anime actors -- to relive the anime or choose one of five characters representing the element of earth, water, fire, wind, or lightning and embark on your own adventures!

Drakensang Online is a free to play 3D action RPG game that features extraordinary 3D graphics and effects and heralds the next generation of free-to-play online browser games. With the ability to customize your character, skills and magic powers like never before, join your comrades to wage a brutal war against evil.

Take part in an immersive multiplayer online fantasy world in Stein, a charming free-to-play social browser-based MMORPG from pg5-studio. Embark on hundreds of quests and take on challenging wave dungeons -- or just enjoy the social aspects of the game!

Become a devil hunter and challenge the forces of evil in Dark Knight, a free-to-play browser MMOARPG from Fortune Game Ltd. Start off as a sorcerer or slayer and summon a goddess to fight by your side as you ascend to become the ultimate devil-fighting machine!

Embark on an epic quest to save world in League of Angels - Heaven's Fury, the latest entry in the free-to-play browser-based MMORPG franchise. Play as a mighty Dragoon, the enigmatic Mage, or deadly Archer and recruit your team of angels from the sides of light and darkness to fight against demonic beasts and their vile masters in a gorgeously rendered fantasy world.

Embark on an epic quest to save world in League of Angels III, the latest entry in the free-to-play browser-based MMORPG franchise. Recruit your team of angels to fight against demonic beasts and their vile masters in a gorgeously rendered fantasy world.

Clash of Avatars is a free to play browser-based ARPG with simple controls and ease of play that’s virtually unrivaled in the realm of online gaming. It’s light-hearted, casual fun with a bright and cheery anime style that’s evident even when you’re hacking through scores of enemies.

Based on the popular Hunter X Hunter manga, this free-to-play browser-based MMORPG offers a wide range of adventures featuring Gon and all his friends! Recruit your favorite characters, meet up with your friends, and join a guild before embarking on epic adventures!

Take part in huge intergalactic battles and take on the whole galaxy in DarkOrbit, the free-to-play browser-based space combat MMO from Bigpoint -- now in 3-D! Choose your faction and your ship, each with their own strengths, and take off into adventure!

RuneScape is one of the most popular free-to-play Browser MMORPG, from the British development studio Jagex. Set in a detailed, medieval fantasy world of epic scale both geographically and historically, RuneScape proudly draws its inspiration from classic role-playing games to deliver a contemporary, innovative and original experience for millions of players across the globe, with a popular subscription option of even greater scale and ambition, both running directly within almost any computer’s browser.

Fame and glory await you in Westeros, in Game of Thrones: Winter Is Coming, the officially licensed free-to-play browser game based on the epic fantasy series by George R.R. Martin.

Explore the farthest reaches of space in Cybertopia Studios’ Astro Empires, a free to play text-based space strategy MMO that gives you something you’ve always dreamed of: the chance to build your own galaxy-spanning empire among the stars. As you start with your own planet in the farthest flung regions of unknown space in Astro Empires, you will learn to gather materials and develop new technologies to turn your previously unnoticed rock into a mighty empire befitting a galactic emperor.

Awaken your inner dragon in Dragon Awaken, a free-to-play browser MMORPG where you take on the powers of a dragon to defend your kingdom! Level up your character, face challenging dungeons, earn mounts, and -- most of all -- harness the power of a dragon!

Bleach Online is a browser-based 2D fighting game set in the fictional world of the Bleach manga/anime. Choose one of six characters and jump into turn-based combat.

Play a part in the battle between gods and giants in Eternal Fury, a free-to-play ARPG from R2 Games. Heaven and Hell are at war, and the realm of man is caught in between.

Set in the fantasy world of Alandria, Firestone is an idle RPG in which players are tasked with building the best possible party of heroes and using them to defeat the undead and orcs that plague the world. While normally a threat on their own, the two races have joined forces and are using the power of the Firestones to wreak havoc upon the land.

Forge of Empires is a browser-based MMORTS by InnoGames. Relive history as you rule over your empire through the stages of early human civilizations.

Gods Origin Online is a 2D free-to-play browser MMORPG where you'll fight alongside the gods themselves in an epic war of faith. Perform various tasks, such as daily quests and storyline quests to advance your character and eventually you'll be able to summon the gods themselves to aid you in battle!

Avast! Set sail and plunder the high seas in Ultimate Pirates, a web-based MMORPG from Gameforge and developer Moonmana.

RPG MO is a free-to-play retro-style sandbox MMORPG featuring pixilated graphics and wide, colorful world in which players can level up various combat abilities, or take a break from the hack-and-slash and focus on crafting skills. This 2D open-world MMORPG is available on PC via browser, client and Steam.

In InnoGames' Elvenar, you can build an epic fantasy city, populated by elves or humans, and watch it grow into a sprawling metropolis, awash in riches and brimming with military might. The elves have powerful magic at their disposal, while humans are well-versed in the arts of war.

Dino Storm is a 3D RPG browser-based MMO by Splitscreen Studios. Players embark on a perilous journey to DinoVille, with nothing more than a change in their pockets, some ammunition, a loaded laser cannon, and your very own dinosaur.

Realm of the Mad God is a free to play 2D browser based cooperative MMO shooter with RPG elements and retro styling straight from the 8-bit era. Fight monsters in groups of up to 85 players!

Crystal Saga is a free-to-play 2.5D browser MMORPG with a vast virtual world. Players may choose from five available classes: Mage, Paladin, Priest, Ranger and Rogue.

Listen up all of you 8­bit lovers out there! As the name would suggest, 8BitMMO is a free to play retro­style 2D massively multiplayer game!