Games like Main Assembly

"Homebrew - Patent Unknown" is a unique puzzle-platformer that challenges players to manipulate time and space. Using the Copybug tool, players can duplicate objects and manipulate their properties to solve puzzles and overcome obstacles. With its mysterious setting and innovative gameplay, "Homebrew - Patent Unknown" offers a fresh take on the puzzle genre.

"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."

Scrap Mechanic is a multiplayer survival sandbox game that lets you build and create using powerful tools. Crash-landed on a strange planet, you must defend against hostile Farmbots and engineer your own adventures. Regular updates bring new content and optimizations to this imaginative, robot-filled world.

"Dream Car Builder" is a game that allows you to design and race your own cars, with a focus on creating the perfect frame and steering system. The game features realistic soft body physics, a car editor, single player racing on procedurally generated tracks, and a sandbox mode for building cars without limitations. Users can also create and share their own vehicles, tracks, and maps. This game is not for the faint of heart, as it requires an understanding of complex designs and may require reading of documentation.

"KitHack Model Club is a simulation game that allows 1-2 players to build and customize RC vehicles in a multiplayer setting. The game features physics-based mechanics, encouraging players to make every design decision count. With numerous parts, paint, and decals to choose from, create and race your unique vehicles in this ultimate model-building platform."

"Besiege" is a physics-based medieval siege warfare simulation game. Construct and control trebuchets, ballistas, and other war machines to destroy fortresses, conquer kingdoms, and complete various objectives. With a range of materials and design options, players can build and test their engineering skills in this creative and destructive sandbox.

TerraTech is an open-world sandbox adventure where you design and build vehicles from various blocks to explore, scavenge, and battle across diverse environments. Featuring co-op and PvP multiplayer modes, stunning graphics, and a captivating soundtrack, it offers both creative freedom and intense combat challenges. Despite some bugs and grinding, its humor and replayability make for a fun, engaging experience.

Stormworks: Build and Rescue is a physics-based game that allows players to design, build, and pilot their own sea-rescue vehicles. Players must use their problem-solving skills to complete missions and rescue citizens in various challenging scenarios. The game also features a sandbox mode for open-ended creative play.

Space Engineers is a sandbox game set in space, where players build, design, and maintain various types of space vessels and stations. It features both creative and survival modes, allowing players to either freely build and explore or survive in a hostile environment. The game also includes physics-based engineering and destruction, adding a layer of realism and challenge to space engineering.

"GearBlocks" is a single-player simulation game that takes 680 hours to complete. It is an open-ended sandbox for mechanically-minded builders, allowing you to construct cars, parkour courses, and more with over 200 parts. Interact with your creations, learn to build with tutorials, and explore example constructions, all with realistic physics simulations.