
Gamebox is a free and open source sandbox game centered on user generated content. You decide what you want to play, be it in 3D or 2D, single-player or multiplayer, or create and upload your own games.
60+ similar titles based on shared tags and player behavior. Themes include Indie, Sandbox, Moddable, Action.

Gamebox is a free and open source sandbox game centered on user generated content. You decide what you want to play, be it in 3D or 2D, single-player or multiplayer, or create and upload your own games.

Blockland
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.

Future Perfect
Future Perfect breaks down the barrier between having an idea for a game, and playing it with friends. The Future Perfect interface allows you to create, play, and share multiplayer games quickly and easily.Games created with Future Perfect are published on Steam Workshop. You can browse, rate, and download games that interest you.
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 41.9%, Moddable 38.5%, Multiplayer 13.2%, Indie 5.1%, Singleplayer 1.2%
Future Perfect breaks down the barrier between having an idea for a game, and playing it with friends. The Future Perfect interface allows you to create, play, and share multiplayer games quickly and easily.Games created with Future Perfect are published on Steam Workshop. You can browse, rate, and download games that interest you.
Why similar: Moddable 74.1%, Multiplayer 14.7%, Indie 11.2%
The Endless Mission is a community-driven creation sandbox game where you can play, hack, and create within a world...within a world...within a world, eventually making and sharing your own games...with the world.
myMO (my Music Oasis) is an immersive multiplayer game built for a community of DJs, Musicians, and Music Fans to share beats while raving in a virtual world that features player customizable Dance Clubs, DJ Controlled Lights & Awesome Visual Effects.
Why similar: Moddable 51.8%, Sandbox 34%, Multiplayer 8.6%, Indie 3.9%, Singleplayer 1.7%
Hammer Sandbox is a solo/multiplayer sandbox game with no specific goal, except maybe having fun! You can make your own mods, maps and gamemodes!
Why similar: Moddable 53.2%, Sandbox 28.7%, Multiplayer 10.8%, Indie 4.6%, Singleplayer 2.7%
Welcome to Merryside, county of the mousers. Use your god powers to cause chaos, build silly contraptions, wreck traffic, and cause mayhem. This game has no rules, it just gives you the power to do literally anything, with nobody able to stop you.
Why similar: Moddable 55.7%, Sandbox 39.4%, Indie 3.1%, Singleplayer 1.8%
XNemesis is a 2D shooter SandBox game, it is a package that contains fully featured levels, Level Designer Software that allows you to create/modify levels and Assets Pack(s) as ready Templates to use in your levels if you don't have/want to use your own images/animations.
A ditherpunk physics sandbox where anything goes with Murray, and there's always something within reach to make it worse.
Why similar: Moddable 52.3%, Sandbox 40.4%, Indie 4.8%, Singleplayer 2.5%
Gabe's Mod is a physics sandbox where there are no set objectives or goals. We provide you with the tools and let you explore and create freely.
Why similar: Moddable 53.4%, Sandbox 28.6%, Multiplayer 11.5%, Indie 4.1%, Singleplayer 2.3%
Pyroworks is a free-to-play online multiplayer game containing fireworks from real-life companies from all over the globe. You can choose to make your own show, cause destruction and chaos or simulate new years. Don't miss out on playing with your friends - the most fun part.
Why similar: Sandbox 39.6%, Moddable 38.5%, Multiplayer 16.6%, Indie 3.8%, Singleplayer 1.5%
Garry's Mod is a physics sandbox. There aren't any predefined aims or goals. We give you the tools and leave you to play.
Why similar: Moddable 49.1%, Sandbox 32.8%, Multiplayer 10.8%, Indie 5.1%, Singleplayer 2.3%
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 49.3%, Sandbox 41.7%, Indie 6.6%, Singleplayer 2.4%
A Sandbox Multiplayer Airship Shooting Game.Design battleships with weapons in a "rock paper scissors" mechanic.Shoot or Collide enemy ships into pieces.Challenge players all over the world with ships designed by yourself!
Why similar: Sandbox 60.8%, Multiplayer 25.9%, Indie 13.3%
VoiceATC Simulator is a realistic Air Traffic Control simulation game centered around interacting with the traffic using your voice. Sequence aircraft into the runways in real airport configurations and sectoring.
Why similar: Moddable 48%, Sandbox 40.2%, Indie 9.5%, Singleplayer 2.3%
cenker's mod is a multiplayer physics sandbox with many mods. Every mod has a different experience. Play included, community-made, and your own mods together with friends.
Why similar: Moddable 54.8%, Sandbox 29.7%, Multiplayer 11.7%, Indie 3.8%
Shoot, stab, burn, poison, tear, vaporise, or crush ragdolls in a large open space.
Why similar: Moddable 52%, Sandbox 43.2%, Singleplayer 2.5%, Indie 2.4%
A flexible free-to-play online multiplayer VR shooter featuring a wide variety of voxel-based gamemodes. Build, destroy, shoot, repeat!
Why similar: Moddable 52.7%, Sandbox 29.4%, Multiplayer 14.5%, Indie 3.5%
Speedrush is a 2D sandbox platforming game which can be played alone, or with other users. It is the perfect game to chill out with friends on, to challenge yourself, or to practice your platforming skills.
Why similar: Moddable 45.8%, Sandbox 23.6%, Indie 16.9%, Multiplayer 11.1%, Singleplayer 2.7%
Horizon Sandbox is a multiplayer physics sandbox. Bolt a thruster to a pallet and call it a plane, send your friend to the stratosphere, build anything, the only limit is your imagination!
Why similar: Moddable 51.5%, Sandbox 35.8%, Multiplayer 7.9%, Indie 3.2%, Singleplayer 1.7%
This is an anime-style sandbox game where you can do anything you want, unleash your imagination, and create your own world.
Project Lounge is a 3D social game that encourages people to socialize in enviroments full of interactable objects such as drawboards, vinyl players and even arcade machines!
Why similar: Sandbox 54.8%, Indie 26.2%, Multiplayer 19%
Desktop buddy is an active sandbox companion game where you can paint, shoot, crush and decorate your very own ragdoll on your desktop. Use familiar paint tools to fully customize your desktop buddy to your liking so you can treat it well, or don't.
Why similar: Moddable 61.5%, Sandbox 30.5%, Indie 5.7%, Singleplayer 2.3%
Master realistic drift physics, tune 120+ cars and drift online with up to 16 players across platforms. Compete in TOP-32, build unique setups and explore hundreds of community-made Workshop maps.
Why similar: Moddable 57.8%, Sandbox 29.5%, Multiplayer 12.7%
Emergency Call 112 – The Fire Fighting Simulation 2 is the consequent further development of the successful first part, which lets every Firefighter Fan experience the way a professional fire brigade works.
Why similar: Moddable 52.4%, Sandbox 31.2%, Multiplayer 14.2%, Singleplayer 2.3%
Cutout World is a platform that allows users to generate 3D environments and characters using generative AI and create interactive games or video content.
Why similar: Moddable 59.3%, Sandbox 33.4%, Indie 4.6%, Singleplayer 2.7%
Using only marbles and gravity, solve logic problems in surprising ways!
Why similar: Moddable 46.7%, Sandbox 43.3%, Indie 5.8%, Singleplayer 4.1%
Build marble runs where your imagination is the only limit. Use a variety of shapes and materials. When they are not enough, use mechanical contraptions to lift, push and steer your marbles. Can't find the right style or function of a piece? Then you can build your own!
Why similar: Moddable 43.3%, Sandbox 43.2%, Indie 8.4%, Singleplayer 5.1%
Classic ribbon-cut jigsaw puzzle game play with original nature photography and animated puzzles. User-extendable means you can create your own puzzles instead of buying more.
Why similar: Moddable 87.1%, Indie 6.6%, Singleplayer 6.3%
Bridge! lets you be a structural engineer and a construction manager in one. Master the mystery to bridge with a limited budget and limited numbers of parts to divide and to ensure a smooth operation.
Why similar: Moddable 66.2%, Sandbox 27.6%, Indie 4.1%, Singleplayer 2%
Modbox is a multiplayer game creation sandbox for Desktop+VR
Why similar: Moddable 53.8%, Sandbox 26.8%, Multiplayer 11.2%, Indie 5.8%, Singleplayer 2.4%
Blue Fire: Void Maker is a 3D platforming and level creation game. Let your imagination run wild designing hardcore, epic or silly levels and sharing them with others! The possibilities are endless in this FREE spin-off of the highly-rated action adventure game Blue Fire.
Why similar: Moddable 67%, Sandbox 27.1%, Indie 4.4%, Singleplayer 1.5%
Lurkers is a chaotic 2D multiplayer sandbox where you can build, battle, and survive! Fight zombies, conquer game modes like Bedwars, and unleash your creativity in a world that’s yours to shape and destroy.
Why similar: Moddable 57.7%, Sandbox 29.2%, Multiplayer 13.1%
Lands of Ma'at is a city-builder with automation elements which puts you in charge of building the Great Pyramid. Found and develop cities all across Ancient Egypt, manage resources and logistics, spread faith and witness one of the greatest creations in history rising right before your eyes.
Why similar: Moddable 65.2%, Sandbox 32.5%, Singleplayer 2.4%
Build your airline from a single aircraft into a global carrier. Plan your network, schedule every aircraft, manage the operation, and compete in a living aviation market.
Why similar: Moddable 54.8%, Sandbox 36.7%, Indie 5.8%, Singleplayer 2.7%
17 of the best classic card games in the world in great 3D graphics! Compete with virtual opponents in Rummy, Canasta, Poker, Gin Rummy, Crazy Eights, Blackjack, War and many more! Each game offers a huge amount of rule variants, rooms, tables and more: a must-have for every card game lover!
Why similar: Moddable 60.3%, Sandbox 20.9%, Multiplayer 10.6%, Indie 4.7%, Singleplayer 3.5%
Dummy Guyz is a multiplayer physics sandbox with no predefined rules. Get creative by building or breaking things your way. The game is bare-bones with no theme and minimal graphics, focusing solely on physics interactions!
Why similar: Moddable 49.2%, Sandbox 36.2%, Multiplayer 14.6%
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 62.6%, Multiplayer 22.6%, Indie 12.6%, Singleplayer 2.2%
KINETIKA is a physics-driven sandbox built around total body control. Master joint-based combat, experiment with movement and magic, create cinematic replays, build custom fighters and worlds, and shape every moment through timing, momentum, and creativity.
Why similar: Moddable 59.8%, Sandbox 35.2%, Indie 3.4%, Singleplayer 1.7%
Four screens. Four characters. One life. Control all four at once in a challenging 2D platformer where one death resets every screen. Master 370 stages (10 INTRO + 360 main stages), collect every star, beat your best times, and create and share stages through Steam Workshop.
Why similar: Moddable 95.5%, Singleplayer 4.5%
Four screens. Four slimes. One shared move. Guide them all home in a puzzle game where every direction affects all four boards. Use walls to your advantage, outwit traps, and solve 10 intro stages plus 360 main stages. Create and share your own puzzles through Steam Workshop.
Why similar: Moddable 96.4%, Singleplayer 3.6%
Nutsimilian is a turn-based 2D tile sandbox/simulation game with an emphasis on exploration, experimentation, and creative thinking within a procedurally generated world.
Why similar: Moddable 62.2%, Sandbox 35.6%, Singleplayer 2.2%
a simple bullet dodge game with customizable content.
Why similar: Moddable 88.4%, Indie 7.4%, Singleplayer 4.2%
Ninja stealth action: -Stealth -Slow motion -Shooter -Character leveling -React in lightning ninja mode -Can you cover the burning hell with a shadow?
Why similar: Moddable 50.4%, Sandbox 27.1%, Multiplayer 12%, Indie 7.3%, Singleplayer 3.2%
A fully moddable city sandbox with jobs, NPCs, apartments, garages, gangs, and more. Broke Protocol is an open-world action game focused on roleplaying and custom content. Define your goals and identity in a persistent, reactive world where you write your own story.
Why similar: Moddable 52.9%, Sandbox 29.4%, Multiplayer 12.1%, Indie 5.7%
3d Engineers is a sandbox game/tool in engineering and construction.
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 57%, Sandbox 33.5%, Multiplayer 3.8%, Indie 3.3%, Singleplayer 2.4%
Are you a rookie? Or a professional? Whatever! With this poker game you can compete against a powerful A.I. based on neural networks - or other poker players in the online community! In No Limit, Pot Limit, Split Limit poker and various game modes such as single game, tournament, network game and internet game you can train and improve...
Why similar: Moddable 54.2%, Sandbox 29%, Multiplayer 13.6%, Singleplayer 3.2%
UltrasClash V is a sandbox anime action game, designed and primed to bring you a unique and creative approach to being a hero and unleash all your super powers!
Why similar: Moddable 60.1%, Sandbox 29.6%, Indie 8.5%, Singleplayer 1.8%
COSMOSAPIENS - Explore a galaxy. Discover strange new worlds with unexpected events and expand the of your reach Interact with diverse alien races. Fight and trade...
Why similar: Sandbox 64.8%, Indie 28.6%, Singleplayer 6.6%
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 43.8%, Moddable 30.1%, Multiplayer 17.8%, Indie 4.2%, Singleplayer 4.1%
CatTag: Create is a multiplayer VR sandbox game where players use hand-based movement to explore, build, and play custom worlds together. Create maps with physics blocks, animations, collision events, and programmable circuits.
Why similar: Moddable 52.7%, Sandbox 29.1%, Multiplayer 13.4%, Indie 4.7%
Float Night is a small sandbox game that is easy to collect resources, simple to build, no craft, and sustainable.
Why similar: Sandbox 87.7%, Indie 10.6%, Singleplayer 1.6%
Crash-landed in the universe of Cantata, will you expand your empire or bring peace to the war torn planet? Grow your army, manage resources and discover the colourful planet of Shoal, its people, and the armed forces overrunning this land in this genre-defining Grand Tactics game.
Why similar: Moddable 53.6%, Sandbox 35.4%, Multiplayer 8.9%, Singleplayer 2.1%
Modlands is an action-adventure sandbox where you can change anything and everything with your friends in realtime multiplayer.
Why similar: Moddable 58%, Sandbox 29%, Multiplayer 13%
Scoot is an open world scooter riding game. Enter this physics based game and perform over 40 different tricks, customise your scooter and rider, build your dream park, film clips, or play online with friends!
Why similar: Moddable 54.8%, Sandbox 22.5%, Multiplayer 13.5%, Indie 6.8%, Singleplayer 2.4%
A fully simulated action RPG where every character has a story, and your actions have real consequences. Factions rise and fall, loyalties shift, and the world evolves with or without you. Play solo or with friends.
Why similar: Moddable 48.8%, Sandbox 38.4%, Multiplayer 11.3%, Singleplayer 1.4%
Graveyard Simulator is a simulation game focused on strategy, design, and moral choices as you transform an abandoned cemetery into a prestigious memorial site. Take on daily graveyard tasks and delve deep into humanity’s relationship with death.
Build, Connect, Simulate! LogiCircuit is the next generation of circuit building! Use logic gates and integrated circuits to simulate real life computers, games, programs, and more!
Why similar: Moddable 62.2%, Sandbox 34%, Multiplayer 2.3%, Indie 1%, Singleplayer 0.5%
Face off against your friends in epic building battles on the sand! Get a theme, race against the clock to build your sandcastle, and vote to decide who is the master of the beach. Just want to relax? Enter Sandbox mode and build without limits!
Why similar: Moddable 60.5%, Sandbox 21.6%, Multiplayer 14.9%, Indie 2.9%