Games like Fort Builder Sandbox

"Pocket Build" is a single-player simulation game with an interesting plot and compelling gameplay. It boasts a stellar 3D graphics engine, a great soundtrack, and endless building possibilities with its vast array of items. However, it can be very grinding with some bugs. The game allows you to build your own fantasy world, with no restrictions, in a huge open world setting, and features a constantly updated library of items to build.

Planet Coaster is a theme park construction and management simulation game that allows players to build and design their own parks with a high level of detail using piece-by-piece construction and over a thousand unique building components. The game also features landscape sculpting tools to shape the land and create various terrains, and offers total authenticity in recreating your favorite rides or building new ones. The simulation is highly advanced, making it one of the most realistic theme park simulators available.

Assassin's Creed IV Black Flag is a historical open-world game that transports players to the Caribbean in 1715, during the golden age of piracy. In this game, players can experience single-player, co-op, and multi-player modes as they join a lawless republic of pirates and navigate a world full of naval battles, plunder, and adventure. The game's immersive storyline is inspired by real historical events and brings to life the legends of legendary pirates, such as Blackbeard.

"Main Assembly" is a robot construction and design game that allows players to build robots of any shape or size, program their movements with visual programming, and test them in custom-built obstacle courses. Players can also collaborate with others to create shared worlds and compete in bot challenges. The game offers a "Starter Collection" of combat-ready machines for instant brawling.

"Draw Bricks" is a Simulation/3D Building game with entertaining gameplay and pretty visuals that can be hilarious, but it is held back by numerous bugs. Players can create and build their own unique structures in a fun and engaging way. Despite its flaws, the game provides a lighthearted and entertaining experience for those who enjoy creative and humorous building simulations.

"Bridge Constructor" is a physics-based puzzle game where you design and build bridges to support vehicles. Use a variety of materials and construction methods to safely guide cars and trucks across increasingly complex gaps. The game offers various modes, including a level editor for creating and sharing your own challenges. With its intuitive interface and gradually increasing difficulty, it's a fun and engaging experience for players of all ages.

World of Goo is a physics-based puzzle game where players build structures with goo balls to reach exit points. Each level presents unique challenges and new types of goo with different properties. The game features a whimsical art style and an eerie soundtrack, creating an immersive and engaging experience.

"LEGO Bricktales is a single-player Fantasy Simulation game with a good story and masterful mechanics that let you build solutions to puzzles using bricks. Explore beautiful diorama biomes, from jungles to castles, to help minifigures and find secrets, all while building your way to revitalizing your grandfather's amusement park. With a good soundtrack, charming visuals, and plenty of humor, LEGO Bricktales may have some grinding, but it's a fun and creative experience."

"Trailmakers is a physics-based vehicle construction sandbox game, where you can build and pilot cars, planes, and boats in a variety of environments. The game features a campaign mode, rally mode to learn building, and sandbox maps for creative building. Multiplayer mode supports up to eight players for cooperative or competitive gameplay. Use various weapons and blocks to build and customize your ultimate combat vehicle."

"Instruments of Destruction" is a physics-based destruction game that lets players control a customizable destructive vehicle. Wreck, demolish, and annihilate various structures and environments with an arsenal of powerful weapons. With an emphasis on creative destruction and dynamic sandbox gameplay, each level presents new opportunities for chaos and mayhem.