Games like Ultimo Reino

"Gran Skrea Online is a Fantasy Role Playing game that offers a massively multiplayer experience with a fabulous story and full-loot PvP combat. With a variety of quests, 20+ skills to level up, and a player-driven economy, players can create their own destiny in this original medieval fantasy world. Construct and furnish your own character home, and beware of the consequences for criminal activity as you explore dungeons and battle in this immersive MMORPG."

"Novus Inceptio" is a sandbox survival game set in a procedurally generated world. Players must gather resources, craft tools, and build shelters to survive against harsh environments and hostile creatures. With a focus on player freedom, the game offers various activities such as farming, hunting, and building, providing an immersive experience in a persistent world.

"Legends of Aria" is a sandbox-style MMORPG that offers a player-driven economy and dynamic world. Players can create their own adventures, choose from various skills and abilities, and interact with others in a persistent online world. The game features a classless system, allowing players to customize their characters to fit their playstyle. However, be aware that the game has faced criticism for its performance and buggy nature.

Requiem: Rise of the Reaver is a Free-to-Play MMORPG set in a dark distant world where an event known as the "Thanatos Incident" rendered the world almost unlivable. Create your own biological weapon known as a Temperion and experience the horrors that grip Ethergia.

"Grav" is a Science Fiction Shooter game that combines frenzied combat with gorgeous visuals and procedurally generated planets for a unique and immersive experience. Play in single-player, multi-player, or co-op modes, with plenty of humor, grinding, and a beautiful soundtrack. However, expect some bugs in this early access game.

"Citadel: Forged with Fire" is a magical massive multiplayer online game where players can explore a vast world, cast spells, tame dragons, and build their own magical castles. Gather resources, trade with other players, and form alliances to rule the skies and the ground. Experience a unique blend of fantasy and sandbox gameplay with a focus on magic and creation.

Kings and Heroes is a fantasy open-world RPG featuring single-player, co-op, and massively multiplayer modes, allowing up to 8 players to explore dungeons and a vibrant town. Choose from 6 races and 5 distinct classes, customize characters, and engage in ingenious gameplay with excellent graphics. However, it suffers from poor optimization, frequent bugs, and heavy grinding.

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.

"Dead Event" is a creature-growth simulator in early access, where you can choose from 13 species and explore the world. Every 5 minutes, you gain idle growth experience, and you can fight other creatures and monsters while finding over 250 unique items. Your creature is customizable with random bonus statistics and can form herds to share experience and items. An exclusive Supporter Pack is included with early access to thank you for your support.

Ryzom, also known as The Saga of Ryzom, is a free and open source massively multiplayer online role-playing game developed by Nevrax for Microsoft Windows, OS X, and Linux.