Games like Garry's Mod

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

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

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

Modbox is a multiplayer game creation sandbox for Desktop+VR

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

Put your engineering and problem solving skills to the test in this sandbox physics building game! Enjoy the freedom of completely gridless 3D sandbox building combined with hilarious ragdoll third person controls, offering a truly unique and hilarious "Enjeniring" experience!

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.

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!

Do whatever you want in a physics sandbox full of chaotic destruction, endless player-made creations and unpredictable adventures. Build, destroy, roleplay and mess around solo or with friends!

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

Developed by the creator of the original Kerbal Space Program, KitHack Model Club is a physics-based model building sandbox that offers limitless freedom for you and your friends. Design, build, battle, fly (and crash!) your very own RC vehicles, or experiment with over 2,400 ready-made vehicles!

The ultimate physics-based, sandbox battle simulator where you can create funny battles between all sorts of ragdoll creatures! You can also make your own monsters with the unit creator or even join the battles yourself in the first-person mode!

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...

Put simply, DEEEER Simulator is a “Slow-Life Town Destruction Game”. You can spend your days enjoying a nice, relaxed frolic here and there together with the other animals around town, or you can choose to relieve some stress and absolutely destroy the town and everything in it.

Gimbal is the multiplayer shooter with buildable vehicles. Customize your weaponry, engines, and accessories, and then take to the skies against other pilots in real time.

Crazy Machines 3 is the latest, greatest, most amazing and craziest part of the series and fascinates once more with physic-based puzzles. Build your own crazy machines and share your awesomeness across the world thanks to the Steam® Workshop.

Regular Human Workshop is a 2D physics simulation sandbox. There are no predefined goals or objectives. Simply throw objects into the world and interact with them in various ways.

STANDBOX is a single-player physics sandbox about bullying a ragdoll. Shoot him, push him, watch him get back up until he doesn't.

Make your own games in this powerful sandbox building engine. Vehicle simulators, first person shooters! No coding knowledge required, create games using blocks and then publish them online for others to play. BUILD IT, PLAY IT, SHARE IT!

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.

Kebab Chefs! is a Co-Op, cooking and restaurant management game that can be played up to 4 players. Design your own restaurant. Cook delicious foods, fill your menu with various recipes, feed customers and become the biggest kebab restaurant in town!

Choose between different factions, with their own set of expendable soldiers, mechas, and weapons. Protect your brain, mine gold, and destroy the enemy cortex in his bunker complex!

The spiritual successor to The Incredible Machine from its original designer and programmer. Play 100s of puzzles. Build and share elaborate contraptions with an huge variety of parts and critters.

The ultimate space sandbox. Participate in epic fleet battles, form alliances, strive to dominate entire galaxies and harness the universe’s resources for your industrious empire or the destruction of others. Customise your experience, the universe is yours!

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!

Plasma is a pure engineering sandbox. Use advanced visual programming and robotics tools to create anything you can imagine.

Have you ever wanted to design your own pinball machine? Then build it? And then play it? You can do all of that and more with PinBuilder!

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

NOTE - All previously sold DLC is now included in the game for free:Deep Cave Block PackUnder the Sea Block Pack Wild West Block PackUnique Skin PackHorror SFX PackSci-Fi SFX PackBlock and Load! Combining the addictive nature of block building sandbox games with the speed and competition of modern first-person shooters, Guncraft takes...

READY FOR CRAFTING VIRTUAL WORLDS ON YOUR PC?The acclaimed world-building game featuring a unique mission-based approach is coming onto PC via Steam Early Access. With over 16 million players on mobile & tablets versions and 1,500,000 pixel blocks creations shared in the Online Gallery to date, this PC version is taking world...

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!

Embark on your creative journey of vehicle design, as you create and operate vehicles to survive this dangerous open world. Anymaker is a detailed and technical vehicle builder and survival game. Design your chassis, build your engine, connect components, and travel into the unknown.

HARD BULLET is a physics-based action game, where enemies flood the neon-lit city bringing destruction to its streets. Use slow-motion, a huge arsenal, and brutal combat to survive and unlock new weapons. Prepare for the next RIDE by mastering your skills in Sandbox and Arena modes.

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.

You’re the designer, engineer and architect if you can imagine it you can create it! Construct robots of any shape or size from eight-legged spider bots to eerie UFO contraptions.

A physics sandbox built on real chemistry. Drop 674 materials into a falling-sand world and watch them react, burn, freeze and explode. Then wire circuits, test wings in a wind tunnel, or split light through lenses — alone or with friends online.

BLOCKADE 3D! First Person Shooter in an editable procedural cubic world. A large arsenal of weapons, 4 teams at the same time and up to 32 players on one map. A large number of game modes!

Strap it on and lock 'n' load in Grass Simulator, where you will Shoot, Loot and MOO! your way through multiple game modes revolved around...GRASS! Grass Simulator will revolutionize the way you look at grass.

Build impressive skyscrapers pixel-by-pixel, and protect them from the harsh realities of nature. Each pixel is physically simulated to interact with earthquakes, firestorms, blizzards, and tsunamis. Protect your skyline and expand your territory in this relaxing (yet challenging) sandbox builder.

Portal™ is a new single player game from Valve. Set in the mysterious Aperture Science Laboratories, Portal has been called one of the most innovative new games on the horizon and will offer gamers hours of unique gameplay.

A spaceship building and universe-exploration game. Collect resources, expand and grow your fleet, and conquer your personal galaxy. Stellar ambience by Peaks.

CAR TUNE: Project is a detailed car tuning simulator where every bolt, screw, and gear matters. Build your dream machine, fine-tune every parameter, and test it on the track.

Live the experience of being a powerful god and create the world to see the growth of mankind.

Physics sandbox game that uses a graphics card as a supercomputer. Change the laws of physics, design mechanisms, create A-Life worlds and inhabit them with living beings, experiment with evolution and AI.

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.

Five of you. Five of them. Face off in a battle where everything you build, destroy, construct or shoot has a devastating impact on the entire game. Build defences using a crazy range of block types and work together in this FPS where no game is EVER the same. NOW FREE TO PLAY.

Add horror and humor to your universe. Make grotesque beasts or cuddly critters, then watch them do the robot, zombie walk, break dance and more! Includes over 100 new items. 60 New parts 48 New paint options 24 New animations

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

I am excited to release my first game on Steam! SimpleRockets was released in 2013 for mobile and I've put a ton of work into it to get it ready for PC and Mac. It was inspired by KSP, and it offers a simpler 2D experience for building rockets and exploring space with realistic orbital mechanics.

Mine and craft your way to orbit, build your own starship and explore a vast, dangerous galaxy alongside your crew. For players who love a meaningful survival progression, a unique and elegant building system, and epic space-opera scale.

Scrapnaut is a co-op & singleplayer top-down, base building survival game with steampunk elements. Explore an open world with different biomes, take care of oxygen, manage your farms, generate electricity, build your home and much more!

The game brings a fresh new take on the city building/management genre by introducing many RPG features. In Towns you manage a settlement on top of an active dungeon. Instead of playing the hero who delves deep into the dungeon, how about playing the town that houses and caters to the hero's needs?

Adorable spider chaos! Swing around the house, weave crazy structures, play with physics-based objects, and pull off chores with nothing but your webs and your wits in this madcap sandbox adventure.

Dynamic abstract sandbox universe. Changes and evolves as you do.