Games like Reign of Kings

"Hurtworld is a hardcore multiplayer survival FPS set in a competitive Science Fiction Open World with good game mechanics, graphics, and a focus on gunplay and strategic map control. The game features crafting, building, and exploring as you brave the elements and defend yourself against fierce creatures. Despite some bugs, Hurtworld offers an immersive and challenging multiplayer experience."

"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.

"The Black Death" is a medieval multiplayer game set in a plague-infested 14th century Europe. Players must survive by fighting for scarce resources, learning new crafting techniques, and avoiding the plague. The game encourages cooperation with other players, but also the risk of betrayal in a land ravaged by disease and scarce resources.

Heat is a role-playing game with both single-player and multiplayer modes. The single-player "Homestead" mode allows you to nurture and build your own farm, while the multiplayer mode for up to 40 players involves surviving in 19th century America with the possibility of becoming a president, sheriff, chief, or governor. Despite its masterful game mechanics, beautiful atmosphere, and humor, the game is plagued by bugs and is poorly optimized, with significant grinding required.

Dark and Light is a sandbox survival RPG set in the mysterious world of Gaia. Harness the power of magic and summon mythical creatures to aid you in challenging battles. Harsh environments and dynamic weather systems require players to build and customize shelters for survival, creating a living, breathing world full of wonder and peril.

Miscreated is a hardcore online survival game set in a post-apocalyptic world filled with mutated creatures, dangerous animals, and hostile survivors. Explore diverse landscapes, from serene forests to ominous bunkers, and drive over 15 types of vehicles to travel faster. Scavenge for food and water, ensuring items are safe to consume before using, and consider hunting wildlife or growing crops to avoid contamination.

"Conan Exiles" is a survival game set in the brutal world of Conan the Barbarian. Players must gather resources, craft tools and buildings, and survive against enemies and other players in a vast open world. With a focus on exploration, combat, and player freedom, "Conan Exiles" offers a unique and challenging experience in a rich and immersive setting.

"Out of Reach" is a survival-focused space exploration game. Mine and gather resources to build and upgrade your space boat, while navigating through procedurally generated galaxies filled with hostile alien creatures and environments. Manage your life support systems, and make decisions that will impact your chances of survival in this challenging and immersive interstellar journey.

"Gloria Victis is a medieval MMORPG with a focus on non-target combat and large scale PVP. Explore a vast open world and choose your path, be it a knight, archer, blacksmith, merchant, or any other of the many available professions. Join the battle for territory and fight in epic wars, tournaments, and castle sieges."

"Life is Feudal: Your Own" is a hardcore sandbox RPG set in a medieval simulator, allowing up to 64 players to interact in a 3km x 3km gameworld. The game features a complex crafting system, free terraforming, and the ability to host private worlds with customizable rules. Combat is non-target and physics-based, with directional attacks and formations playing a significant role in battles.