Top similar games like Nuclear Design Bureau:

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.

Design real rocket engines with real physics, no black boxes. You're an underpaid engineer at Mecodyne, building engines that fire only if they'd work for real, without regard for your safety. A serious engineering sim that teaches by doing. Built solo.

A falling-block puzzle fueled by real chemistry. Let's play fire, play water, play every element in the universe!

Grow fluorescent cells that create mesmerizing emergent chaos. Simple mechanics hide deep complexity as cells evolve survival strategies through synergistic interactions. Catalogue successful lines and culture them to develop your own unique biology.

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..

Develop magical programming abilities while building spells. Lambda Spellcrafting Academy is a card-based puzzle game where you build spells (programs) to solve puzzles. If you've ever wanted to dabble in spellcraft (programming) here is a fun way to get started.

Virtual Circuit Board is the sandbox drawing-based logic simulator where you can build, program, decorate, and simulate anything from simple monochrome circuits to complex and colorful computers. Play with digital logic in this sandbox-only experience.

Charge is a level-based puzzle game where you control the flow of charge around a circuit board. Arrange pre-built components into wondrous machines that take advantage of available resources and design your own modules from scratch.

Zachtronics is back with an ambitious new design-based puzzle game. Take on the role of a Reactor Engineer working for SpaceChem, the leading chemical synthesizer for frontier colonies. Construct elaborate factories to transform raw materials into valuable chemical products!

Jingjie is a strategy-simulation sandbox where you write laws, shape probability clouds, and guide a living world with embedded local AI. Observe, experiment, and watch complex life emerge from logic, tension, and chaos.

Have you ever played a game that is so fun, but is also so infuriating that you wanted to throw your keyboard against the wall? Squares Rage is one of those. You have been warned.

Design computational circuits which defy restrictions of our universe in this open-ended puzzle. Your completed creations become components to solve future challenges. As you design a circuit and can place your design within it, where there is a smaller you doing the same, and so on to infinity.

Double Envelopment is a real-time strategy game where you are a general in charge of conducting an invasion of foreign countries, using a mix of grand strategy, operational artistry, and tactical decision-making to capture enemy cities and infrastructure, and lead your army to inevitable victory!

Design increasingly complex computation units powered by high pressure steam. From switches to steam based computers, all in a world of analogue pressure devices. Use previous designs to solve further challenges, unravel the mystery of the missing steam and discover a new field of science.

Pixel Forge is a puzzle game where you create pixel art by connecting nodes. If you think you're smart enough, give this puzzle a try.

Senalux is a hex-based puzzle game about optics where you solve challenging puzzles with colorful lasers. Use the red, green and blue lasers, combine them to the right color and illuminate the target.

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!

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.

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...

Pressure climbing. Drum level dropping. Three alarms and the TSO wants more power. If you trip the plant, everyone notices — the news, your boss, that guy who named his cat after a substation. You got hired because your resume said "worked with computers." Keep the lights on. Keep your job.

Interact with elements and molecules in a way that you have never before! Observe them and make them react with each other in the sandbox mode. Synthesize every molecule in the quest mode. Discover countless macromolecules and the elegancy of chemistry.

Reactonix is a flexible and enjoyable simulation sandbox where every force is at your command. Create ecosystems alone or with friends, experiment with physics and watch life evolve—or start an apocalypse for the sake of science. Complete freedom to create and destroy is in your hands.

Multiply Factory is a factory building game. Build your own multiple-layer factory within a 3-D space with belts, inserters, factories and stairs. Enjoy the fantasy of manufacturing. 

Solve programming puzzles on a fictional computer with radio-based communication and unique limitations. Competitively optimize to compete on leaderboards against friends and the global community.

Create and evolve your own digital lifeforms! Watch or interact as your creations adapt and thrive in a world governed by the laws of physics. Download now and start your own evolutionary journey!

A challenging Suika-like with no ground and an end

Hex-a-Decimal is an automation puzzle game on a hexagon grid. Set up lines of conveyors, pausers, sensors, and various other components to get signals to where they need to go. It's a challenging game that anyone can pick up, but the question is: how far will YOUR puzzle solving skills take you?

Explore real digital life in The Bibites! Play god by guiding your bibites on their evolutionary journey or engineer your own. Analyze their Neural Network brains and genetic information as they adapt to their environments. Save your favorites and test their strength in Challenge Mode!

An idle clicker game with prestige, perks, interest, evolving system, difficulty tiers, ranking and many other features!

Build and fly your own airplane! Complete missions to earn money, upgrade your plane, and discover new locations in an open world.

Logos Orbit is an emergent cosmic tuning simulation where you rewrite the "Logos" of an ever-expanding universe to control the collision and equilibrium of stars. Place gravity-altering Sigils to tune the orbits of star systems on the brink of collapse.

A creative sandbox simulation where you experiment with physical interactions, build structures, and observe emergent behaviors in a world fully under your control.

Reverse-engineer a private 1990s BBS. Read disassembly, patch broken checks, optimize a nine-core rack, and write assembly firmware that locks onto live scope traces. With 200+ puzzles, full controller support and offline play, you can refine your assembly skills on all your devices!

Graviton is a falling sand simulator in which you define your own interactive sand art. Sit back, relax, and draw from existing sand materials. Or take time to learn and create your own sands with complex rules. The possibilities are endless!

Kindle a world where every light is a living soul. Shape it — never command it — then fall from the heavens to a single life and follow it. Ask why about anything and get the real causal chain. The stakes always win; how long and how brightly your world burns is the score.

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