Space Simulation Toolkit similar games & best alternatives

Space Simulation Toolkit

PC (Microsoft Windows) • 2020

Should you play it?

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.

What works
  • Highly detailed and optimized particle physics simulation
  • Extensive customization and creativity potential
  • Active developer engagement and community support
  • Multiple simulation modes including evolution and planetary physics
  • Absorbing and relaxing experience for enthusiasts
Things to keep in mind
  • Steep learning curve with poor ui and lack of tutorials
  • Frequent crashes and stability issues
  • High hardware requirements, limited amd support
  • Early access with incomplete features and content
  • Expensive for current state and limited guidance

What to play next

Similar games, hidden gems, and fresh directions from this game.

Top picks

Games that feel the closest overall

  • Voxel Tycoon

  • Sand:box

  • Plasma

  • Motorcycle Mechanic Simulator 2021: Prologue

  • Diesel Railcar Simulator

  • Flyout

  • Train Sim World® 4

  • GearBlocks

  • Train Simulator Classic
Hidden Gems

Less popular games with surprisingly high similarity

  • Diesel Railcar Simulator

  • Vehicle Simulator

  • STATIONflow
If you liked…

Recommendations by what you enjoyed most

  • Creativity

    Chroma Lab
  • Experimenting

    Sand:box
  • Autonomy

    Chroma Lab

Similarity map

Explore nearby similar games and see why they’re close.

How to use the graph
Similarity map

Each dot is a game. They are arranged from the same motivation profile as in the “Why this game works” section below. Closer dots usually mean more similar reasons to play (exploration, competition, relaxation, etc.)—not that one game is “better” than another.

  • Purple star: this page’s game — everything on the map is relative to it.
  • Coloured chips: click to highlight games that mainly differ on that motivation; click again to reset.
  • Dotted line: link between this page’s game and the one selected for comparison.
  • Hover a dot for a screenshot preview, score, and top score gaps; click to compare in the panel on the right.
  • Scroll or double-click the chart to zoom out and see more games.

Why don’t the axes read like a score? This view uses t-SNE: it only keeps who is close to whom. The scales are not “good to bad” or hours played—they separate groups on the map. Read distance between dots, not the axis numbers (hidden on purpose).

Space Simulation Toolkit: Broadly representative of its motivational profile, with a few distinct shifts. Motivations that often define this kind of title include Violence, Fantasy, Story, Thrill. Here, the score leans higher than usual among comparable games on Expression. It leans lower than usual among comparable games on Value, Story.

Why this game works

A motivational profile of the game, with the closest similar game for each player motivation.

  • Autonomy

    Game with the same Autonomy vibe

    4

    "Players have extensive control over particle physics, colors, gravity, and other settings allowing free experimentation and personal direction."

    Capsule for Chroma Lab Chroma Lab

    "Players have extensive control over particle types, simulation parameters, and can create custom simulations, indicating high personal freedom and control."

  • Competence

    Game with the same Competence vibe

    3

    "Game offers skill-based physics interactions, combat, and puzzles with easy to learn but hard to master mechanics."

    Capsule for BONELAB BONELAB

    "The game involves managing complex physics simulations and tweaking many parameters, offering skill-based challenges and feedback, though some users find it difficult to master."

  • Competition

    Game with the same Competition vibe

    -4

    "Focus is on personal exploration and experimentation without competitive or ranked elements."

    Capsule for Mr. Sleepy Man Mr. Sleepy Man

    "Focus is on personal experimentation and simulation creation without competitive or ranked elements."

  • Continuation

    Game with the same Continuation vibe

    3

    "Many users report spending hours experimenting and watching simulations, indicating habitual engagement."

    Capsule for Terra Firma Terra Firma

    "Many users report spending hours experimenting and returning repeatedly despite crashes, indicating habitual engagement."

  • Cooperation

    Game with the same Cooperation vibe

    -5

    "The game is a single-player simulation/sandbox with no multiplayer or cooperative gameplay."

    Capsule for Behind Glass: Aquarium Simulator Behind Glass: Aquarium Simulator

    "The game is a single-player simulation tool with no multiplayer or cooperative features."

  • Creativity

    Game with the same Creativity vibe

    5

    "Strong emphasis on creating and modifying particle effects, physics, and visual styles; users experiment extensively."

    Capsule for Chroma Lab Chroma Lab

    "Strong emphasis on creating and modifying simulations, materials, and particle behaviors, with plans for modding and scripting support."

  • Domination

    Game with the same Domination vibe

    -5

    "No elements of exerting control over others; purely individual simulation."

    Capsule for World of Subways 2 – Berlin Line 7 World of Subways 2 – Berlin Line 7

    "No elements of exerting control over others; purely individual simulation experience."

  • Escapism

    Game with the same Escapism vibe

    3

    "Players use the game as a relaxing distraction and stress relief, enjoying immersive simulation."

    Capsule for Electrician Simulator - First Shock Electrician Simulator - First Shock

    "Users describe the game as relaxing and absorbing, providing distraction and stress relief through immersive simulation."

  • Expectation

    Game with the same Expectation vibe

    -4

    "Players engage voluntarily out of personal interest and curiosity rather than obligation or external pressure."

    Capsule for Tech Support: Error Unknown Tech Support: Error Unknown

    "Players engage voluntarily out of personal interest and curiosity rather than obligation or external pressure."

  • Experimenting

    Game with the same Experimenting vibe

    5

    "Core gameplay revolves around trying new combinations, testing mechanics, and exploring interactions."

    Capsule for Sand:box Sand:box

    "Core gameplay revolves around testing new particle interactions, physics parameters, and simulation setups."

  • Exploration

    Game with the same Exploration vibe

    2

    "Players explore story, worldbuilding, and character arcs, but physical game environments are limited and mostly static."

    Capsule for D1AL-ogue D1AL-ogue

    "Players explore different simulation modes and particle behaviors, though environments are mostly abstract and 2D."

  • Expression

    Game with the same Expression vibe

    4

    "Customization through detailed building and crafting allows personal expression in structures and creations."

    Capsule for Lay of the Land Lay of the Land

    "Customization of particles, materials, and simulation parameters allows for personal expression through creations."

  • Fantasy

    Game with the same Fantasy vibe

    -2

    "Game simulates realistic engineering physics and scenarios rather than imaginative fiction."

    Capsule for The Enjenir: The Engineering Physics Building Simulator The Enjenir: The Engineering Physics Building Simulator

    "The game simulates realistic physics and natural phenomena rather than imaginative or fictional settings."

  • Fellowship

    Game with the same Fellowship vibe

    -3

    "Limited social interaction; community exists but gameplay is primarily solo."

    Capsule for Poly Bridge Poly Bridge

    "Limited social interaction; community exists but gameplay is primarily solo."

  • Growth

    Game with the same Growth vibe

    3

    "Players develop skills in physics-based controls and learn game mechanics through varied jobs and challenges."

    Capsule for Wobbly Life Wobbly Life

    "Players learn complex simulation mechanics and improve skills in managing physics and parameters."

  • Health

    Game with the same Health vibe

    -5

    "Sedentary computer-based simulation with no physical activity involved."

    Capsule for RealFlight Evolution RealFlight Evolution

    "Sedentary computer-based simulation with no physical activity involved."

  • Idle

    Game with the same Idle vibe

    -3

    "Requires active engagement and attention to manipulate simulations; not a background activity."

    Capsule for Universe Sandbox Universe Sandbox

    "Requires focused attention to set up and manage simulations; not typically used as background activity."

  • Intimacy

    Game with the same Intimacy vibe

    -5

    "No close social or emotional relationships formed through gameplay."

    Capsule for Jurassic World Evolution Jurassic World Evolution

    "No close social or emotional relationships formed through gameplay."

  • Leadership

    Game with the same Leadership vibe

    -5

    "No leadership or group management elements present."

    Capsule for Trover Saves the Universe Trover Saves the Universe

    "No leadership or group management elements present."

  • Progression

    Game with the same Progression vibe

    2

    "Some progression through unlocking or creating new units and mods, but no traditional leveling or item accumulation."

    Capsule for Ultimate Epic Battle Simulator Ultimate Epic Battle Simulator

    "Some sense of progression through unlocking or creating new materials and simulations, but no traditional leveling or item collection."

  • Relaxation

    Game with the same Relaxation vibe

    3

    "Many users find the simulator relaxing and a good way to relieve stress while practicing."

    Capsule for RealFlight Evolution RealFlight Evolution

    "Many users find the simulation relaxing and enjoyable to watch, despite occasional frustration from crashes."

  • Sensation

    Game with the same Sensation vibe

    2

    "Visuals and physics provide moderate sensory stimulation, but not intense excitement."

    Capsule for Scrap Mechanic Scrap Mechanic

    "Visual and physics effects provide moderate sensory stimulation, but minimal auditory or emotional excitement."

  • Status

    Game with the same Status vibe

    -5

    "No social recognition or ranking systems; achievements are personal and private."

    Capsule for The Infected The Infected

    "No social recognition or ranking systems; achievements are personal and private."

  • Story

    Game with the same Story vibe

    -5

    "No narrative or story elements; gameplay is context-free simulation."

    Capsule for X-Plane 12 X-Plane 12

    "No narrative or plot; gameplay is context-free simulation."

  • Strategy

    Game with the same Strategy vibe

    3

    "Requires planning and problem solving to build stable structures and meet level objectives."

    Capsule for World of Goo 2 World of Goo 2

    "Requires planning and problem solving to create stable or interesting simulations and manage parameters."

  • Thrill

    Game with the same Thrill vibe

    -2

    "Low risk and suspense; gameplay is calm and methodical rather than thrilling."

    Capsule for Crazy Machines 3 Crazy Machines 3

    "Low risk and suspense; gameplay is calm and methodical rather than thrilling."

  • Value

    Game with the same Value vibe

    -1

    "Mixed opinions on value; some find it worth the price for potential and nostalgia, others feel it is overpriced for early access state."

    Capsule for Movies Tycoon Movies Tycoon

    "Mixed opinions on value; some find it worth the price for the simulation depth, others feel it is overpriced for early access state."

  • Violence

    Game with the same Violence vibe

    -5

    "No violent or destructive gameplay elements; focus on constructive simulation."

    Capsule for X-Plane 12 X-Plane 12

    "Focus on constructive simulation and physics; no combat or destruction gameplay."

  • Survival

    Game with the same Survival vibe

    -4

    "No survival or threat avoidance mechanics; stable environment."

    Capsule for Please, Don't Touch Anything 3D Please, Don't Touch Anything 3D

    "No survival or threat avoidance mechanics; stable simulation environment."

Come talk about it on Discord!

Last update: 01/06/2026