Games Like Garry's Mod

Enter the creative paradise of Scrap Mechanic! Build fantastic machines, go on adventures with your friends and defend against waves of evil Farmbots in this imaginative multiplayer survival sandbox. With Scrap Mechanic’s powerful creation tools you can engineer your own adventures!

Why similar: Sandbox 19%, Building 18.3%, Physics 12.5%, Moddable 11.5% ★, Multiplayer 9.5%

Why You'll Like It: Its co-op physics sandbox lets you build ridiculous machines from scratch and then break the rules with friends in the same spirit as GMod contraption play.

Brickadia is a next-generation brick building sandbox that gives you the tools to create and play, your way. Build massive worlds, invent cool contraptions, and play in them however you like - all with your friends!

Why similar: Sandbox 21.7%, Building 16.2%, Physics 15.1%, Multiplayer 10%, Online Co-Op 8.3%

Why You'll Like It: Like Garry's Mod, it's a community-driven sandbox built around multiplayer building, scripting, and turning simple tools into custom games and chaotic experiments.

Modbox is a multiplayer game creation sandbox for Desktop+VR

Why similar: Moddable 29% ★, Sandbox 16.4%, Building 11.8%, Physics 11.3%, Multiplayer 8.2%

Why You'll Like It: This is essentially a moddable multiplayer physics toybox focused on user-created modes and experiments, just with a stronger VR angle.

Shoot, stab, burn, poison, tear, vaporise, or crush ragdolls in a large open space.

Why similar: Moddable 30.7% ★, Sandbox 28.3%, Physics 14.4%, Building 9.1%, Funny 5.2%

Why You'll Like It: Although 2D and single-player, it nails the same joy of spawning objects, messing with systems, and creating absurd physics-driven scenarios.

Blockland is a non-linear sandbox game with no set goals, giving players the freedom to design and construct elaborate structures. Styled as a tiny minifigure, players build inside of the virtual world using bricks reminiscent of toy blocks.

Why similar: Sandbox 26%, Moddable 21% ★, Building 16.1%, Multiplayer 9.8%, FPS 5.2%

Why You'll Like It: Blockland shares GMod's server-driven feel by mixing sandbox building tools with custom multiplayer creations and a playful anything-goes tone.

Build your own vehicles or download one of the more than 200,000 creations already uploaded to the Workshop and experience the dynamic driving and destruction physics of Brick Rigs!

Why similar: Sandbox 28.2%, Building 20.2%, Physics 15.1%, Multiplayer 12.7%, Funny 6.7%

Why You'll Like It: It captures the 'spawn something dumb and see what happens' appeal through brick-built vehicles, destruction physics, and open-ended multiplayer sandboxing.

GoreBox is a chaotic physics-driven sandbox where creativity meets destruction. Use the Reality Crusher to spawn, manipulate, and obliterate anything. Customize, battle with friends, roleplay, or face devious creatures. In this world, your imagination rules—and chaos is your playground!

Why similar: Sandbox 31.6%, Physics 18.7%, FPS 15.7%, Shooter 11.2%, PvP 8.5%

Why You'll Like It: Its weapon-filled physics sandbox, ragdolls, and freeform experimentation feel very close to the anarchic side of Garry's Mod.

Space Engineers is a sandbox engineering game where you design and build ships, stations, and planetary bases in a fully destructible environment. Explore planets and space, mine resources, survive hazards, and engage in combat alone or with friends in Creative or Survival modes.

Why similar: Moddable 24.3% ★, Sandbox 14.4%, Building 11.8%, Physics 10%, Co-op 9.4%

Why You'll Like It: If you loved GMod for building and tinkering, this gives you a deeper multiplayer sandbox for constructing vehicles, bases, and machines in a fully interactive world.

Prepare the perfect heist in a fully destructible, simulated voxel world. Tear down walls with vehicles or use explosives to create your own shortcuts. Shape the environment to your advantage in the most creative ways you can imagine. Play solo or with up to 12 players in multiplayer.

Why similar: Sandbox 24.2%, Physics 17.1%, Online Co-Op 12.3%, Co-op 11.7%, Multiplayer 9.9%

Why You'll Like It: Teardown turns the sandbox impulse toward fully simulated destruction, giving you a mod-friendly world to experiment with tools, vehicles, and emergent physics.

A dynamic soft-body physics vehicle simulator capable of doing just about anything.

Why similar: Moddable 28.2% ★, Sandbox 19.5%, Physics 16.2%, Realistic 9.1%, Multiplayer 8.5%

Why You'll Like It: For players who mainly loved GMod's physics experimentation, BeamNG offers one of Steam's best sandboxes for crashing, testing, and improvising.

Tabletop Simulator is the only simulator where you can let your aggression out by flipping the table! There are no rules to follow: just you, a physics sandbox, and your friends. Make your own online board games or play the thousands of community created mods. Unlimited gaming possibilities!

Why similar: Moddable 23% ★, Sandbox 18.3%, Multiplayer 11.8%, Online Co-Op 9.7%, Physics 9.3%

Why You'll Like It: Like GMod, it's really a platform for community-made experiences where the best part is using flexible tools to invent your own multiplayer fun.

Wobbly Life is a vibrant open-world physics sandbox. Play with your friends online or in local co-op, with exciting jobs, mini games and wacky story missions. Earn cash to spend in the world on clothes, vehicles and houses. There is a whole Wobbly World out there to explore!

Why similar: Sandbox 24.2%, Co-op 14.2%, Multiplayer 13.2%, Physics 11.3%, Online Co-Op 10.6%

Why You'll Like It: This goofy physics-heavy sandbox captures the casual, social, and funny side of messing around with friends more than any structured goal chase.

Besiege is a physics building game about constructing medieval machines to annihilate armies, obliterate castles and overcome challenging obstacles. Conquer the campaign or skirmish with friends in Multiplayer!

Why similar: Moddable 31.3% ★, Sandbox 18.9%, Building 15.2%, Physics 13.1%, Multiplayer 8.7%

Why You'll Like It: It scratches the contraption-builder side of GMod by letting you assemble absurd siege machines and watch physics decide the outcome.

Human Fall Flat is a hilarious, light-hearted platformer set in floating dreamscapes that can be played solo or with up to 8 players online. Free new levels keep its vibrant community rewarded.

Why similar: Sandbox 24.7%, Co-op 19.2%, Physics 17.8%, Multiplayer 13.1%, Funny 12.5%

Why You'll Like It: Its floppy physics and co-op problem solving deliver the same kind of accidental comedy and player-created chaos that makes GMod sessions memorable.

FIREWORKS MANIA is a small casual explosive simulator game where you play around with fireworks, create beautiful firework shows or just blow stuff up.

Why similar: Sandbox 18.9%, Building 13.3%, Moddable 11.1% ★, Physics 10.9%, Multiplayer 9.3%

Why You'll Like It: This is another relaxed 'mess around with physics toys' sandbox, centered on creative setup and spectacular payoffs.

Build the ultimate vehicle and explore a vast open world filled with challenges and adventure. Play solo or team up with friends in multiplayer to conquer the toughest obstacles. With a thrilling campaign mode and endless creative possibilities, Trailmakers is the ultimate sandbox for adventurers.

Why similar: Online Co-Op 23.9%, Sandbox 20.8%, Building 17.1%, Physics 14.6%, Multiplayer 10.4%

Why You'll Like It: Its snap-together vehicle building and cooperative sandbox play make it a great fit for players who loved GMod's creative engineering chaos.

Be the leader of wobblers from ancient lands, spooky places, and fantasy worlds. Watch them fight in simulations made with the wobbliest physics system ever created, make your own wobblers in the unit creator and send your army off to fight your friends in multiplayer.

Why similar: Sandbox 32.5%, Physics 17.4%, Funny 14.2%, Comedy 9.4%, Simulation 9.3%

Why You'll Like It: Its intentionally silly physics and toybox freedom make it a natural pick if you enjoy spawning units and watching absurd simulations unfold.

Goat Simulator is the latest in high-tech Goat Simulation technology.

Why similar: Sandbox 23.6%, Comedy 17%, Physics 15.7%, Funny 15.7%, Simulation 13.2%

Why You'll Like It: It lacks the building tools, but its open-ended physics comedy and commitment to stupid fun line up well with GMod's prankster spirit.

The Powder Toy is a classic physics sandbox game, which simulates air pressure and velocity, heat, gravity and a countless number of interactions between different substances

Why similar: Sandbox 30.8%, Moddable 28.6% ★, Physics 12.6%, Building 12.3%, Simulation 9.7%

Why You'll Like It: If the appeal is pure sandbox experimentation, this gives you a deep simulation playground for chaining systems together and seeing what emerges.

In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics.

Why similar: Sandbox 25.3%, Moddable 24.6% ★, Physics 16.2%, Building 13.8%, Simulation 8.3%

Why You'll Like It: It trades comedy props for rockets, yet the build-sim-break loop and physics-driven experimentation feel very familiar to sandbox tinkerers.

Become a ragdoll and create your own environments in Sandbox Mode, explore worlds created by others, or just flop around your destructible sets! Fun with Ragdolls®: The Game lets you enjoy everything you love about ragdolls!

Why similar: Sandbox 27.2%, Physics 18.5%, Building 13.5%, Funny 11.1%, Moddable 7.4% ★

Why You'll Like It: It leans into the same spawn-ragdolls-and-cause-mayhem energy that powers a lot of Garry's Mod silliness.

Fight upon the Ravenfield together with your Blue allies! Take down those pesky Reds using helicopters, tanks, guns, and active ragdoll physics!

Why similar: Moddable 20.2% ★, Sandbox 20%, FPS 16.7%, Shooter 11%, Physics 7.2%

Why You'll Like It: While it's more combat-focused, its moddability, sandbox battles, and easy drop-in experimentation echo GMod's custom scenario appeal.

Join a world where you design, create and pilot your own air sea rescue service. Release your inner hero as you battle fierce storms out at sea to rescue those in need.

Why similar: Sandbox 33.3%, Building 23.6%, Physics 18.2%, PvP 10.7%, First-Person 8.5%

Why You'll Like It: This is a more systems-heavy sandbox, but it delivers the same satisfaction of designing functional creations and testing them in multiplayer.

A highly customizable virtual stressball and physics sandbox about mutilating ragdolls in various ways using an overwhelming amount of weapons and tools.

Why similar: Sandbox 35.5%, Physics 20.5%, Building 10.1%, Moddable 8.8% ★, Simulation 8.3%

Why You'll Like It: This is a niche but very open physics sandbox for players who enjoy testing reactions, setups, and destructible dolls without clear objectives.

Build airplanes by snapping parts together, designing wing sections, and attaching engines. At any time, you can strap yourself into the cockpit and see how it flies with realistic physics. If you're not in the mood for building, over 100,000 airplanes are available to download for free.

Why similar: Moddable 29.3% ★, Sandbox 21.9%, Building 17.6%, Physics 15%, Funny 8.4%

Why You'll Like It: Like a focused slice of GMod contraption building, it lets you create vehicles, tweak behavior, and then immediately mess around with the results.

Experience true combat gameplay in a massive military sandbox. Deploy with a wide variety of single- and multiplayer content, a massive arsenal of modern weapons and vehicles, and limitless opportunities for content creation. Authentic, diverse, open - Arma 3 sends you to war.

Why similar: Moddable 14.2% ★, Multiplayer 12.1%, Sandbox 11.5%, Shooter 10.7%, FPS 10.7%

Why You'll Like It: Its huge mod ecosystem and mission sandbox make it a good fit if what you really loved was joining custom servers and turning a game into a platform.

Do you like hot dogs? How about horseshoes? Hand grenades? (everyone likes hand grenades) Anyway, we've got all that, and guns. SO MANY GUNS. So if you like ordnance, meat, and far too many groan-worthy puns, this is the VR sandbox game for you.

Why similar: Sandbox 19.5%, Moddable 18.7% ★, Physics 12.5%, FPS 11.9%, Shooter 8.9%

Why You'll Like It: If your favorite part of GMod was simply spawning objects and playing with detailed physics in first person, this VR sandbox delivers that in weapon form.

Crash through walls and tear down buildings in Instruments of Destruction, a vehicle-action game featuring advanced physics-based demolition. Pilot 130+ unique vehicles across scores of challenge-packed missions or design your own contraptions and wreck highly-interactive sandbox worlds.

Why similar: Physics 41.8%, Shooter 23.4%, Simulation 16.5%, Action 9.1%, Casual 4.8%

Why You'll Like It: This focuses on vehicle-based demolition, but its joy of building a setup and then letting physics create chaos is very GMod-adjacent.

You're a survivor in the zombie infested ruins of society, and must work with your friends and forge alliances to remain among the living.

Why similar: Sandbox 23.4%, FPS 15.7%, Co-op 15.6%, Multiplayer 12.3%, Shooter 11.5%

Why You'll Like It: Unturned is more survival-oriented, yet its workshop support, private servers, and flexible sandbox feel give it some of the same community-driven freedom.

BONELAB is an experimental physics action game. Explore a mysterious lab filled with weapons, enemies, challenges and secrets. Escape your reality, or wreak havoc. No wrong answers.

Why similar: Sandbox 29.5%, Physics 21.4%, FPS 17.3%, Shooter 13.2%, First-Person 9.8%

Why You'll Like It: BONELAB brings heavy physical interaction, sandbox modes, and a mod scene that can feel like a VR cousin to Garry's Mod.

Fast multiplayer action set in the Half-Life 2 universe! HL2's physics adds a new dimension to deathmatch play. Play straight deathmatch or try Combine vs. Resistance teamplay. Toss a toilet at your friend today!

Why similar: FPS 25.6%, Multiplayer 16.8%, Action 10.9%, Physics 10.3%, Shooter 10.3%

The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!

Why similar: FPS 19.2%, Co-op 18.8%, Physics 15.7%, Funny 14%, Comedy 12.7%

Multiplayer sandbox with destructible environment. Destroy different maps, build your own, and play with your friends and other people online

Why similar: Sandbox 21.8%, Building 16.7%, Shooter 9.4%, PvP 8.4%, Online Co-Op 7.8%

Pilgor's baaack! Gather your herd and venture forth into Goat Simulator 3; an all-new (at least on Steam), totally realistic, sandbox farmyard experience. Invite up to three friends in local or online co-op, create carnage as a team, or compete in mini-games and then not be friends anymore.

Why similar: Sandbox 24.4%, Physics 17.3%, Comedy 10.9%, Co-op 10.2%, Multiplayer 9%

Mod&Play - physics sandbox. Manipulate objects and create your own constructions with friends. There are no restrictions or goals, it all depends on you.

Why similar: Moddable 26.3% ★, Sandbox 21%, Physics 8.2%, Building 7.9%, Multiplayer 7.5%

Dude Simulator is an open world sandbox game. This is a life simulator. The main objective is to enjoy what you are doing.

Why similar: Sandbox 24.5%, Simulation 12.7%, Funny 12%, Multiplayer 10.7%, Shooter 9.3%

Rec Room is the best place to build and play games together. Party up with friends from all around the world to chat, hang out, explore MILLIONS of player-created rooms, or build something new and amazing to share with us all.

Why similar: Multiplayer 19.1%, Sandbox 19%, Online Co-Op 18.5%, Co-op 12.4%, Funny 11.1%

Grab your balloon crossbow and trusty inflatable hammer, because things are about to get wobbly! Be the last weirdo standing in the world-leading physics-based Battle Royale game.

Why similar: Physics 23.5%, Multiplayer 17.8%, Sandbox 12.2%, FPS 10.2%, Simulation 9.3%

Nine distinct classes provide a broad range of tactical abilities and personalities. Constantly updated with new game modes, maps, equipment and, most importantly, hats!

Why similar: Multiplayer 22.9%, FPS 20.8%, Shooter 12.3%, Online Co-Op 11.2%, Funny 8.7%

Ultimate Ragdoll Game is a Sandbox game without any limits. Have fun with ragdolls available in Steam Workshop and build your very own constructions using wide variety of blocks.

Why similar: Moddable 29.3% ★, Sandbox 21.6%, Building 15%, Physics 14.1%, Funny 6.7%

As an Ethereal Estate agent, your job is to make a mess out of a mansion and its helpless inhabitants. Never before has a ghost unleashed such devastating chaos... until now!

Why similar: Sandbox 23.2%, Physics 17.5%, Co-op 13.1%, Multiplayer 10%, Funny 9.7%

Explore a world of creative building, interactive machines, and gears - lots of gears. Build all things mechanical: cars, trucks, cranes, tanks, gearboxes, engines, clocks, anything you can think of. Test your creations to destruction in challenging scenarios, and share them in the workshop!

Why similar: Moddable 29.8% ★, Sandbox 19.6%, Building 18.4%, Physics 14.3%, Simulation 5.8%

Turn your entire digital life into a game. AArcade is a 3D desktop that launches shortcuts to absolutely anything you like. Join the anarchy of the persistent online metaverse, or remain in your own private reality. Casual in-game building features, plus hundreds of thousands of addons.

Why similar: Sandbox 37.2%, Multiplayer 16.2%, Simulation 7.9%, Funny 7.8%, Co-op 7.2%

The only aim in Rust is to survive. Everything wants you to die - the island’s wildlife, other inhabitants, the environment, and other survivors. Do whatever it takes to last another night.

Why similar: Sandbox 18.8%, Building 18.1%, Multiplayer 15.9%, PvP 8.7%, FPS 8.5%

Sanbox multiplayer building game with additional game mods

Why similar: Sandbox 18.6%, Building 13.2%, Shooter 11%, Co-op 10.4%, Comedy 10.2%

Live a week in the life of "The POSTAL Dude"; a hapless everyman just trying to check off some chores. Buying milk, returning an overdue library book, getting Gary Coleman's autograph, what could possibly go wrong?

Why similar: Moddable 30.7% ★, Sandbox 18.7%, Comedy 11.7%, FPS 9.2%, Funny 9.1%

A physics sandbox game for people who like to play with digital toys. Create, control toys and define your goals.

Why similar: Sandbox 32.4%, Building 23.7%, Physics 21.6%, Funny 10.4%, Simulation 9.4%

Voxel Project offers an immersive sandbox experience set in a fully destructible voxel environment. Explore a dynamic world teeming with vehicles, dynamic fire mechanics, enemy NPCs, voxel gore, weapon customization, and a bunch of additional features to discover.

Why similar: Moddable 24.4% ★, Sandbox 15.9%, Physics 9.1%, Multiplayer 8.8%, Co-op 8.3%

Dude Simulator 3 is an open world sandbox game. It is your friend’s birthday tomorrow. You have already bought him a present, now you only have to give it to him. But your friends lives in another city, quite far from you.

Why similar: Sandbox 21.1%, Multiplayer 15.9%, Physics 11.4%, Simulation 9.4%, Comedy 9.3%

Goat Simulator Remastered is the latest in goat simulation technology. Your favorite chaotic sandbox is back and more beautiful than ever, with updated graphics, every DLC, and more bugs that you can shake a goat at. WASD to rewrite history.

Why similar: Sandbox 30.4%, Comedy 15.5%, Simulation 13.1%, Physics 9.8%, Casual 7.1%

"Falling sand" style particle sandbox, now with circuits and stickmen!

Why similar: Sandbox 40%, Physics 23.8%, Building 15.8%, Simulation 10.1%, Casual 4.8%

Create & destroy on an unimaginable scale with a realistic physics-based space simulator. Explore the beauty of our universe and the fragility of our planet. Use science to bend the laws of gravity, collide planets, boil away oceans, fire epic space lasers, and customize your universe.

Why similar: Sandbox 43.7%, Physics 25.5%, Simulation 11.4%, Realistic 9.2%, Exploration 3.7%

Counter-Strike: Source blends Counter-Strike's award-winning teamplay action with the advanced technology of Source™ technology.

Why similar: Shooter 29.5%, FPS 24.4%, Multiplayer 14.9%, Moddable 10.1% ★, First-Person 6.4%

A creative building-like game, where the objective is to throw physics enabled objects to create structures to allow the objective of the level to be completed. Can be a very challenging puzzler or an easy, sit back and relax game. Includes built in Level Editor and extensive Multiplayer functionality.

Why similar: Sandbox 47.3%, Multiplayer 23.2%, Simulation 11%, Action 7.2%, Casual 6.2%

An open multiplayer sandbox game; includes tools, props, levels, NPCs, character models, game-modes and much more! Make your own using our mod kit!

Why similar: Building 26.7%, FPS 25.1%, Physics 20.1%, PvP 15.7%, First-Person 12.4%

Dive into a sandbox full of action and customization! Choose from different game modes like deathmatch, conquest, king of the hill, zombie survival and many more. Create your own scenarios and content in the easy to use in-game editors or use one of the 50k+ workshop items from other players...

Why similar: Moddable 25.1% ★, Sandbox 23.7%, Physics 8.8%, FPS 7.8%, Simulation 6.3%

Playcraft is a multiplayer game-creation sandbox accessible to anyone!

Why similar: Sandbox 22%, Building 16.1%, Online Co-Op 13.1%, Co-op 12.5%, Multiplayer 10.6%