Sandbox Games
Open-ended building and physics-toy games. Free, no download, no account.
Bridge Bound
Build a bridge from limited planks to get the truck safely across the gap.
Pixel Dig
Dig for resources, craft better tools, build a shelter, and fight creatures at night.
Backyard Builders
Build a treehouse or fort a little at a time with your fresh daily supply of pieces.
Bounce Lab
Drop wobbly test dummies in and use silly tools to make funny physics reactions.
Chain Reaction Lab
Place ramps, levers, and fans to guide the ball into the goal.
Contraption Chaos
Place ramps, springs, and boosters to guide a little cart to the goal.
Ramp Rampage
Physics stunt park with ramps, loops, and your own level editor.
Ragdoll Soccer Party
Bump and dash the ball into your opponent's goal. Same keyboard, 2 players, first to 5.
Mini Golf
Drag back and release to putt through 3 hand-designed holes with real physics.
Ragdoll Soccer Blitz
Faster physics soccer with quicker dashes. Same keyboard, 2 players, first to 7.
Mini Golf Desert
3 new, harder holes with more obstacles and a smaller cup.
Toy Train Builder
Snap the track together, then press Go!
Railway Bridge
Build it, test it, watch it hold (or not).
Engine Simulator
Build it, rev it, dyno it: see and hear how an engine really works.
Crash Test Lab
Crash cars for science. Save the dummy.
Ragdoll Stunt Lab
Launch a floppy crash dummy at ramps and walls.
Ragdoll Pillow Duel
Wobbly pillow fights for one or two players.
Demolition Simulator
Wrecking balls and blasts: knock it all down.
Elements Sandbox
Sand, water, fire and lava: mix the elements.
Marble Run Builder
Build a 3D marble run, then let them roll.
Game of Life Lab
Draw cells and watch Conway's Game of Life grow.
Raft Survival Ocean
Hook drifting loot, grow your raft, keep the shark away and get rescued.
Build a Boat for Gold
Build a boat from blocks and see how far down the wild river it floats.
Ski Resort Mountain 3D
A whole ski resort to explore: chairlifts, seven runs, medals, hidden snowflakes.
Open-ended building and physics games for kids
Pixel Dig is the biggest sandbox on AnonArcade: mine ore, craft better tools, build shelter, and fend off creatures at night across a seeded 2D world that regenerates identically every time you load it. Backyard Builders is a lighter, grid-based building game: place walls, roofs, and decorations from a daily supply of pieces that tops up over time, and your structure never gets wiped.
Bounce Lab and Chain Reaction Lab are physics playgrounds built on the same underlying engine. Bounce Lab drops jointed ragdoll test dummies into a scene full of trampolines, fans, magnets, and portals; Chain Reaction Lab is a Rube-Goldberg-style puzzle where you place ramps, levers, and fans to route a ball into a goal across three hand-built chambers. Contraption Chaos uses the same engine for a build-and-test twist: place ramps, springs, and boosters to guide a little cart across six increasingly tricky obstacle courses, with unlimited free retries to iterate on your design.
3D physics sandboxes and simulations
For bigger experiments, Ragdoll Stunt Lab fires a floppy crash-test dummy from a cannon through hoops, balloons and trampolines, and Ragdoll Pillow Duel is a wobbly pillow fight on a mattress for one player or two. Demolition Simulator brings down walls, towers and skyscrapers with charges, a cannon and a wrecking ball, and Marble Run Builder lets you build a 3D marble track up to seven levels high, then watch the marbles roll.
Elements Sandbox is a falling-sand game where sand, water, lava, fire, oil, acid and many more elements react with each other, and Game of Life Lab is a playground for Conway's Game of Life, with famous patterns, different rule sets and challenges. For more games that copy how the real world works, see all the Simulation Games.
No account, no download, no ads. Every save lives in your own browser. See the Parents & Safety page for details.
Frequently asked questions
What is a sandbox game?
A sandbox game gives you tools and open space instead of a fixed level to beat. Pixel Dig lets you mine, craft, and build across a whole generated world; Backyard Builders and Bounce Lab give you a fixed set of pieces or tools to experiment with freely.
Do sandbox games save my progress?
Yes. Pixel Dig and Backyard Builders both save what you've built locally in your browser, so it's there the next time you visit on the same device. Bounce Lab has save slots for your favorite physics scenes.
Is Bounce Lab violent?
No. The ragdoll test dummies in Bounce Lab are built from jointed parts that physically can't come apart, so the physics comedy stays silly rather than gory by design.