Games like Boundless

Pax Dei is an open-world multiplayer RPG where players craft tools, battle enemies, and explore to gather resources and gold. Accumulate Grace to perform powerful Miracles and claim personal plots of land to build and expand. Engage in trading or combat with others as you carve out your own path in a dynamic, player-driven world.

"Tree of Life" is a sandbox game that allows you to build and manage your own village in a beautiful, procedurally generated world. You can create and customize your character, choose your role and allegiance, and explore diverse environments such as deserts and snowy fields. The game encourages creativity, freedom, and discovery, with the potential to build grand castles or a village for wanderers.

BitCraft Online is a cozy, community-focused MMORPG set in a single, shared world where players experience slow-burn progression and idle-style growth. Explore an ancient land, build lasting legacies by terraforming and constructing, and foster deep social connections in a vibrant player-driven universe. Embrace endless collaboration and make your mark in a world without limits.

"Eco" is a survival game that simulates a realistic ecosystem, where players must build and maintain a society while protecting the environment from pollution and other threats. The game features crafting, building, and research systems, and allows players to create laws, form governments, and collaborate on complex projects. Players' actions have lasting consequences, making "Eco" a unique blend of survival, simulation, and education.

"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.

"Rising World is an open-world, voxel-based sandbox game with fully destructible environments. Gather resources, build and create your own structures or cities, and survive in the wilderness, alone or with friends. The game features a randomly generated world, drivable boats, and over 200 building materials." Note: The game is currently undergoing an engine migration and may differ from the store page description. A preview of the new version is available in a beta branch.

"Life is Feudal: MMO is a large-scale, medieval life simulation game with a focus on realism and player freedom. Set in a vast, open world, players can engage in a variety of activities such as farming, crafting, building, and combat. The game features a complex skill system and allows for deep customization of characters and the world around them."

"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.

Fractured Online is a sandbox MMORPG that offers a fully player-driven economy and different playstyles. Traverse three unique continents, each with distinct environments, creatures, and cultures. Engage in PvP, form alliances, or choose a PvE path, shaping your character and story in a dynamic world.

CryoFall is a sci-fi open world colony simulation game where players can choose to play in PvE or PvP mode. The game features massively multiplayer options, including co-op and single-player, with good game mechanics and awesome graphics. Starting with primitive technology, players must progress towards modern industrial and space-age technology while building bases, farming, and exploring.