Top similar games like Reactonix Sandbox:

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

Shape breathtaking worlds in Terra Firma 2, a vast simulation where your creations evolve through the forces of nature. Sculpt the land, then watch as weather, erosion, and life itself transform your world into a dynamic, living ecosystem- right down to every plant and creature.

EDEN is a physical sandbox. No limits, create worlds and play the way you want! To create worlds, we give you a large set of tools, game mechanics, smart and not so smart NPCs, cars, weapons and many other interesting things.

Your company is going global. Use big machines to demolish huge buildings or go close and personal and use your hammer. Buy land properties, upgrade your machines and hire workers in different parts of the world.

Invent a new computer! Logic World is a first-person sandbox simulation game that's all about digital logic. Play alone or with friends, design unique machines, build up layers of complexity, and experience the joy of circuits!

Destructive Contraptions is a physics based sandbox simulator where you can create huge contraptions with dominos, balls, canons, pivot etc. and watch them fall apart and destroy giant structures, cities, buildings without having to worry about the legal and life threatening issues.

This is a physics-based casual sandbox game, where there are no limits to your creativity. Mess around with liquids, explore the space, build machines, or just explode everything you can see.

Create your own level with your friends online in the sandbox mode, play the mini-games, ragdoll, drive a car, fly with a Jetpack, fart to go higher, throw grenades. Access more than 45 items to build your own level.

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

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.

Dive into a world of creation and discovery, where each element combines to form new ones. Experiment freely in this interactive sandbox. But be careful: every combination has its consequences..

In this physics-based particle sandbox, everything is in flux: water, steam, ice, magma, acid... Blast it. Wreck it. Build it!

Demolition sandbox with different guns including nature powers. Slow down time, change gravity and much more to play around! With compaign and sandbox mods.

Create and destroy on a scale you’ve never imagined!

Falling-sand sandbox game with 500+ elements, chemistry, fire, life, food, and anything you can imagine.

Paralives is a life simulation game about building homes, lives and bonds. Through both hardship and success, where will your story take you?

The genre defining VR model train game. Build and ride the model train layout of your dreams without the cost and excessive model foam dust getting in your nose!

Water Physics Simulation & Sandbox! Build ships and let them sink! Build cars and let them sink! Use bombs and destroy ragdolls. Play with natural disasters or create towns.

Physics-based cross-play mechanic simulator. Become a real engineer, create new mechanisms and build your worlds. Craft, join & share your creation across PC and mobile devices. Play with your friends beyond one platform.

In Lofi Haven, soothing Lofi music and white noise create the perfect setting for focused work or study. Decorate your room, interact with your pet during breaks, and enjoy music and time with friends. No matter how busy you are, this place is your peaceful haven.

Use the Nimbatus Drone Creator to construct physically simulated drones and try them out in a virtual testing environment. Do you have what it takes to become a drone engineer?

Circuit simulation for those who draw their own CPUs

Sand in a Box is a 'falling sand' game that simulates thermal flow, electricity, radioactive decay, and gravity. Create art, experiment with physics, and craft your own simulation rules with user-friendly mod support!

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

You are a owner of nano flats, responsible for decorating each mini space to attract tenants and earn impressive profits! As your income grows, keep buying more units and gradually expand your rental kingdom, easily stepping toward financial freedom!

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.

WorldBox is the ULTIMATE god simulator and sandbox game. A petri dish for your fantasy civilizations. Create your own world or destroy it using many powers. Watch civilizations grow, form kingdoms, colonize new lands, sail to far continents, wars to ignite, empires to fall and towns to burn!

A relaxing evolution simulation where AI-driven block creatures move in unexpected ways. There are no complex ecosystems—just pure movement learning through a physics engine. Watch as these creatures scurry, stumble, and evolve in their own unique, unpredictable ways.

An ecosystem simulation running in your hands. Transform a desertic world into a lush forest. No stress, play at your own pace. This world is at your disposal. Terraform the landscape, add plants and animals. Create your perfect ecosystem.

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.

An idle desktop game featuring a minimalist MMO approach. Nurture your civilization, defend your planet from threats, and steer its evolution. Develop new technologies to explore the vast universe and connect with.

Gridworld is an artificial life and evolution simulator. Watch creatures evolve through natural selection as they learn to find food, avoid danger, and compete with other creatures for survival.

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.

Build ships from scrap and fly them in a gritty, realistic space sim. Venture solo or team up. Hunt for parts, haul vital resources, and keep your space agency afloat.

Survive and evolve as an organism with this simulation game in which you will literally start as a single cell and manage and organize all its functions to a fully fledged system! Assemble, breathe, eat, fight threats, produce energy, grow, anything is possible!