Top similar games like Nin Online:

Master 70+ jutsus in a massive 240 sq mile open world. Shinobi Unleashed is a free-to-play anime action MMORPG built on Unreal Engine 5 with dedicated servers. Weave hand signs, chain devastating combos, hunt S-Rank bosses for legendary loot, build clans, and dominate a player-driven economy.

NosTale is a free-to-play anime action MMORPG which takes you on an exciting journey through a world full of mystery with your friends. More than 30 specialist classes and tons of loyal pets provide plenty of excitement and variety in PvP, PvE and raids

The Magic Land is a massive online role-playing game where people live in a magical world of adventures.

Discover endless expanses and hardcore PvP! Become a hero of a fantastic world in AION: charge into thrilling combat, on ground or in the air, battle against other players or in the fight against some mighty monsters. Spread your wings, Daeva, and fight for the fate of your people!

Gran Skrea invites players to create their own destiny in an original world of medieval fantasy. Embark on varied and challenging quests, square off in ruthless PvP combat, or write your character’s story through an unstructured economy and player-created guilds.

Medieval Lands® is an old-school fantasy MMORPG brimming with mysterious lore and exciting adventures. Forge your own path in a classless gaming experience with a variety of skills, races, and playstyles. Explore the open world, slay mystical monsters, battle other players, amass riches, and more!

Relive an iconic tale with Blade & Soul NEO. Fully remastered where players reconnect with the original spirit of the free-to-play, open-world MMORPG. Experience a richer visually enhanced experience set in a world of Wuxia mythology where fast-paced combat collides with the stunning visual beauty.

Classic free-to-play open-world MMORPG with grind, PvP, and a risky upgrade system up to +10. Level 1–100 with no resets. 33 maps. Crossplay for PC & mobile (Android beta).

A 2D Online RPG where you can become the most wanted pirate, the strongest bounty hunter or even the highest-ranking Marine! Customize your character to be uniquely yours, level up and find treasures. Start your adventure in the world of Pirate Souls now!

2D Pixel Art MMORPG passion project reboot of Leafling Online. Fight, craft, socialize, and explore a beautiful and deep open world. Free-to-play now and forever with NO pay-to-win.

An new indie MMORPG inspired by OSRS! Train, battle, quest, and explore a dynamic world. Solve puzzles, conquer dungeons, and fight epic battles. This game builds upon time-tested mechanics with barricades, fires, player controlled resources, endless raids, macroing, and a caravan system!

Step into Bitmates, a charming cross-platform free-to-play RPG. Explore diverse lands, master new skills, and collect unique treasures. Craft or trade them in a dynamic marketplace. Show your style with collectibles and forge a destiny as a craftsman, adventurer, or merchant.

The Last Credit: Legend of the Broke is a 2D pixel-art game that brings the everyday life of a university student. The player's goal is to complete university assignments while balancing the character's resources: hunger, thirst, money, etc.

Battle as a team of 4 to compete against other teams online! Graphically, SHINOBI STRIKER is also built from the ground up in a completely new graphic style. Lead your team and fight online to see who the best ninjas are!

Open World MMORPG, Free to Play, PvP, PvE, Craft, Trade, Quests, One class perform only one role (Attack, Defend or Support)

Sectoris Sky takes you to a fantastical world suspended in the skies. Explore the floating islands, teeming with mysteries, resources, and formidable enemies.

A class-based action MMO inspired by classic RPGs. Explore a fractured world of monsters and ruins, build your own playstyle, and fight alongside friends in real-time, cooperative combat.

Throne and Liberty captures the essence of classic MMORPGs while introducing new gameplay elements, depth and excitement at every turn. Gather your guild, prepare for battle, and set forth for throne... and liberty!

Avaroth Online is an open-world MMORPG with PvP combat, character progression, and exploration across lands inspired by Argentina. Gather resources, build, and face enemies and players alike in a hostile, persistent world.

RuneScape is a high fantasy open world MMORPG. Explore an ever changing and evolving living world where new challenges, skills, and quests await. Featuring unprecedented player freedom, you choose how to play, adventure, and grow.

Choose up to 4 different classes, customize your character and chat with friends in-game, create your own guild/clan, battle monsters, learn techniques and spells, raise your own pet and use it in battle, obtain the best armors and weapons, become rich and famous!

Aura Kingdom is a free-to-play Anime MMORPG featuring strong PVE elements, a uniquely detailed world, and an engaging, well-crafted story. Aura Kingdom empowers players as Envoys of Gaia, gifted individuals that take the role of one of the fifteen classes.

Get ready for a journey to the world of Anseion, an immersive 2D MMORPG. Choose your faction: good or evil. Fight against players and monsters, explore the fascinating world, collect items and create your own. Make a unique character. Participate in events and faction battles, increase your rank.

Take the battle to the sky with fantastical flying mount combat unlike anything you’ve seen before in Riders of Icarus, the new unprecedented action-adventure MMORPG experience that lets you ride and fight on the back of the realm’s most dangerous winged beasts…dragons.

Viet Quoc Truyen Ky is an online role-playing game (MMORPG) with a strong classic, retro style, featuring familiar elements such as monster hunting, level grinding, item looting, and free item trading between players. The game is deeply intertwined with captivating legends and rich folklore.

Journey into the world of Kando. Take on creatures, craft awesome weapons, help villagers and cut down tree's. Will you slay your way to the top? Or become a master craftsman. It's all down to you.

Aim to conquer Aincrad with Kirito and Asuna

The Great Battle between Karus and El Morad has arrived to Steam! Pledge allegiance to one of the Nations and put your skills to the test in one of the best PvP system in the MMORPG universe!

Free-to-play MMORPG Eternal Magic is a huge fantasy world with a flexible class system, dynamic combat and epic battles for up to 80 people. A MOBA mode, a party in your mansion, weddings, and guild battles. A killer mix for an incredible adventure!

Step into Halmgaard — a nostalgic yet fresh 2D MMORPG where freedom, challenge, and community meet. Explore an open world, master magic and skills, forge your destiny, and take risks for legendary rewards.

AION 2 is the only MMORPG built around a world where the sky is the battlefield. Choose your faction, ascend as a Daeva, and fight a faction war across a world 36 times larger than the original. PC only, on Unreal Engine 5.

Real-time combat combos, action RPG, and dungeon instances combine beautifully to form Divine Souls. Play alone or form a party with friends and strangers to slice, grab, combo, and clear enemy minions on your way to dungeon bosses.

Fight other players for control of wizard towers. A multiplayer action RPG with permadeath. Going for that sweet, sweet classic MMO feel.

Start your heroic saga today in a world full of magic and excitement: Choose your race, build a home and discover the fantastic world of Taborea in the classic free-to-play MMO!