Games like Cube Gun

"Cube Gun is a creative multiplayer game that lets you build unique voxel structures using unconventional materials. The game takes place in a web browser and encourages players to let their imagination run wild as they construct their own worlds."

"World Craft is a sandbox game that lets you explore, build, and survive in a blocky, customizable environment. Mine resources to craft structures, tools, and weapons, while fending off monsters and zombies at night. Create unique worlds and experiences, but be sure to gather resources and food to aid in your survival."

"Automaton Lung" is an experimental third-person exploration game where players skate, shoot, and fly through over 40 unique locations. As you explore this strange land, you must be resourceful and questioning to uncover the mysteries of your surroundings. With each step, mile, and doorway, more secrets are revealed in this intriguing and atmospheric game.

Manyland is a massively multiplayer platformer game where players explore an infinite world, creating and building new things by drawing them, making music, scripting objects, and going on adventures together. It's an open universe with no predefined story, where the community creates the content and determines the possibilities. With a variety of activities and endless opportunities for creativity, Manyland offers a unique and exciting gaming experience for all.

MyDream is a sandbox game featuring grid-based building and deformable voxel terrain in expansive worlds. Developed in Unity, its VoxelForm engine provided high performance and impressive deformation quality. Due to technical constraints and a shift towards VR, the game's development stagnated in 2016, but it remains available for players to build, terraform, quest, and explore.

"Powder Game" is a physics-based simulation game that allows players to experiment with various elements and reactions. Choose from over 30 different "dots" or particles, including water, fire, oil, gunpowder, metal, seeds, and even birds and ants. Each dot reacts differently when hit or combined with another, resulting in unique explosions, growth, and other phenomena. The game simulates real-world reactions, such as trees growing from seeds and sand, making it an entertaining and educational experience.

Planet Explorers is an open-world sandbox adventure game set on a distant planet. Players can build and customize their own tools, vehicles, and structures, while also gathering resources, completing missions, and fighting alien creatures. The game features a dynamic story generation system, allowing for a unique experience with each playthrough.

"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.

"Ace of Spades: Battle Builder" is a creative shooter game that allows up to 32 players to engage in team-based multiplayer mayhem across a destructible, evolving battlefield. Players can choose from seven unique classes, construct and destroy the environment, and take out the opposition. Despite its pretty visuals and wholesome story, the game is plagued by bugs, poor optimization, and disturbing ads, but still offers good gameplay and plenty of humor.

Teardown is a destructible physics-based sandbox game where players can destroy environments and steal materials to complete various objectives. With a wide range of tools and vehicles, players can create their own paths and strategies to accomplish tasks in this first-person game. The game features a procedural map generation system, allowing for unique environments and challenges in each playthrough.