Play Armor Sandbox on PC Play Armor Sandbox on PC and Mac

About the Game

Armor Sandbox is a 2D physics sandbox built around impact simulation. You pick something to shoot, pick something to shoot at, and observe what actually happens. Developer VBJ has built the entire experience on particle simulation rather than canned animations. Every plate, projectile, and fragment is made of particles that carry real material properties: density, strength, melting point, and heat capacity. Deformation, fracture, spalling, heat, fire, and detonation all emerge from those numbers. Change steel to glass and it shatters instead of denting, because glass is brittle, not because a shatter effect was drawn.
Materials and Projectiles
Armor Sandbox ships with over 80 materials. The list covers steels, aluminium alloys, tungsten, tantalum, ceramics and glass, concrete and stone, wood, rubber, water, fuel, and explosives. Over 60 projectiles are available, from pistol rounds to APFSDS long rods, shaped charges, and hypervelocity rods. More than 60 targets let you test plates, layered armour packages, and deep blocks. If you prefer to start from a known setup, over 40 ready-made experiments are included.
Vehicle Cutaways
More than 15 vehicle cutaways are included, among them the T-34-85, Tiger I, Panther, Sherman, IS-2, T-55, T-72 with and without reactive armour, M1A2, Leopard 2A6, Challenger 2, BMP-1, and M113. Each cutaway shows its real armour layout, ammunition, fuel, and engine inside, so you can study how a projectile interacts with internal components rather than just an outer shell.
Build Your Own Designs
You can paint projectiles and targets pixel by pixel, choosing the material of every pixel. Tools include mirror, outline, replace, and snap to a grid. Save designs to your library, then send a design to a friend or to your own PC as a single small file. This makes Armor Sandbox as much a creation tool as a simulation.
Performance on Phones and Desktops
The physics core is one flat block of memory and runs in a background thread, so the screen keeps up while the simulation works. Quality is measured against your device the first time you open the app, from 18,000 particles up to a million on a desktop. That range means the same simulation can run on a phone and scale up significantly on more capable hardware.
Privacy and Simplicity
There is no account, no ads, and no tracking. The app makes no network requests of its own. Nothing you build leaves your device unless you export it yourself.
Play Armor Sandbox on PC and Mac with MuMuPlayer
Armor Sandbox is a mobile game, but its particle simulation benefits from a larger screen and more precise input. Playing Armor Sandbox on PC with MuMuPlayer gives you mouse and keyboard control, which is especially useful when painting projectiles and targets pixel by pixel, and when inspecting layered armour or vehicle cutaways in detail. The higher particle ceiling of a desktop setup also means you can push simulations further than on a phone.
If you use a Mac, MacBook, Mac mini, or an Apple Silicon machine such as M1, M2, M3, M4, M5, M5 Pro, or M6, you can play Armor Sandbox on Mac through MuMuPlayer. The same applies to Windows PCs, where MuMuPlayer provides a stable environment for long simulation sessions. Because the game does not require an account or make network requests, you can focus on building and testing without distractions. Whether you are on Windows or macOS, MuMuPlayer offers a practical way to run Armor Sandbox on a bigger display with desktop-class controls.