Games ›
Best free sandbox games
Open-ended games where you set the goal: build, simulate, explore, break things and see what happens. Free and in the browser, no install.
-
1
Gaussian Splats FPS
by PlayCanvas
Walk through a photoreal Gaussian-splat scan of an abandoned building and shoot it out with AI-controlled soldiers.
3dshootersandbox+1 5 players -
2
VoxelCraft
by senko · built with Claude Opus 5.5 (Claude Code)
Mine blocks, craft at tables and furnaces, and dodge creepers in a Minecraft-style voxel world with saved worlds and adjustable render distance.
3dsandboxarcade0 6 players -
3
ShatterVox
by agusdropout
You walk through a Teardown-style voxel world and smash walls and objects into physics debris, finding billboards and books about the creator's projects along the way.
3dsandbox0 6 players -
4
WALLROAM
by u/WALLROAM
Wander a small 3D Kabukicho, climb to the rooftops, and draw on the walls. No missions, just a place to explore.
sandbox3dtoy0 5 players -
5
Lagoon Tree Village
by cryptomanavan · built with Claude Opus 5.5
Explore on foot a large desert oasis village built into giant trees around a turquoise lagoon.
3dsandbox0 5 players -
6
Sandspiel
by Max Bittker · built with Rust + WebGL
A falling-sand toy with water, fire, plants, and a community gallery.
sandboxtoy0 4 players -
7
Orb.farm
by Max Bittker
Build a tiny self-sustaining aquatic ecosystem inside a glass orb.
sandboxtoy0 4 players -
8
Arkenfall
by LexnLin · built with Claude Opus 5.5
An open-world game that runs in your browser with zero external assets: terrain, creatures, and everything else generated in code.
3dsandbox0 4 players -
9
Voxel Survival Sandbox
by Jacob Eisner · built with Claude Opus 5.5
A Minecraft-style survival sandbox with crafting, mobs, and caves, built from one prompt with no external assets.
sandbox3d0 4 players -
10
Mvidia
by Jaso1024
Build a graphics card step by step, from basic logic up to a working GPU.
sandboxpuzzle0 4 players -
11
Ride Tales
by Aurelien_Gz · built with Claude Code
Pick a spot anywhere on Earth and drive around an open world doing quests and hunting for hidden treasure.
3dracingsandbox0 4 players -
12
Glyph Tower
by Korochin
Stack physics-simulated letter-shaped blocks on top of each other to build the tallest tower you can before it topples.
3dsandboxtoy0 4 players -
13
New York
by Matt Shumer · built with Claude Opus 5.5
An open-world New York City you can explore in the browser, built and continuously improved by Opus 5.5.
3dsandbox0 3 players -
14
Robo-Arm Builder
by u/SnooOwls412
Assemble an arm from joints, links and tools, see its motion zones, drag the tip with IK — then take the parts list with prices and the URDF export. One HTML file, works on phones.
sandbox0 3 players -
15
Icare
You explore dreamlike worlds, talk to dreamers and collect artifacts to restore each world and recover your lost feathers.
3dsandbox0 3 players -
16
Farseer
by headsupernova
Fly without a break from Earth's surface out to the deep field in a 3D universe explorer based on real measurements.
3dsandboxtoy0 3 players -
17
Glider - One Throw. Endless Sky.
by mrtwizzles · built with GPT-6 Astra
Throw a paper airplane and fly it through endless biomes in free roam, keeping an eye on your distance, speed and altitude.
3dsandboxtoy0 3 players -
18
PC Builder — v2.0.7
by u/Infynityyy
I made a PC building incremental game in 2 weeks (vibe-coded with ChatGPT)
idlesandbox0 2 players -
19
GridCity
by u/fabianolecce
Build your city in the style of classic SimCity (1989), entirely in the browser: zones, power, water, traffic, disasters, isometric 3D view. Free, no install required.
strategy3dsandbox0 2 players -
20
Sketchbook
by Jan Bláha (swift502)
You run around a physics sandbox as a third-person character and can hop into cars, planes and helicopters to drive and fly around the map.
3dracingsandbox-1 2 players -
21
Minecraft Classic
by Mojang
You place and break blocks to build whatever you want in the original 2009 creative version of Minecraft.
3dsandbox0 2 players -
22
Teach Me to Fly
by Spacegoo
You steer a wingsuit flyer as it glides between buildings and over terrain, trying to stay airborne.
3dsandboxtoy0 2 players -
23
3D.City
by lo-th
You zone, build roads and power lines, and manage a growing city in a 3D city-builder simulation.
3dsandboxtoy0 2 players -
24
SKROT
by Oskasb
Fly a detailed F-14 Tomcat over a large open world, or take a boat out on the water, with adjustable physics settings.
3dsandboxtoy0 2 players -
25
Marble Fall
by Sven Frankson
Build marble-run tracks from ramps, loops, and elevators, then watch the physics-simulated marbles roll through them.
3dsandboxtoy0 2 players -
26
Keep Out!
by Little Workshop
You explore a dungeon as a hero, fighting monsters and collecting better weapons as you go deeper.
3dsandbox0 1 player -
27
Blockzilla
by markfersh · built with Claude Code
Stomp through a blocky New York as a giant kaiju in a survivors-style roguelike, smashing buildings and evolving new powers.
3dsandbox0 1 player -
28
Orbital Foundry
by 9950x3d
You build a rocket from parts, fly it into orbit, plan maneuvers, dock and travel between planets in a 3D solar system.
3dsandboxtoy0 1 player -
29
Gravity
by qunabu
You follow a guided tour of why orbits happen, then fling planets around a solar-system simulator that goes from Newton to Einstein.
sandboxeducational0 0 players -
30
Mars Landing Simulator
You fly a rocket between bases on Mars, managing fuel, tilt and wind so you touch down gently.
3dsandbox0 0 players -
31
Word God
You combine words, starting from primal elements like fire and water, to discover new concepts and grow a universe.
wordsandbox0 0 players -
32
Lame Rider
by @_fergarram_
You draw your own track with the mouse and then ride a little bike over it, or try other players' maps.
sandboxtoy0 0 players -
33
Theme Park Builder
built with Codex (GPT)
You place paths, rides and snack stands on an isometric plot and keep your guests happy and the park clean.
sandboxstrategy0 0 players -
34
FactorishJS
by msakuta
You lay mines, conveyor belts and furnaces to build a small Factorio-style automated factory.
strategysandbox0 0 players -
35
Microcity
by eliot-akira
You zone land, lay roads and power, and grow a tiny city in a simulation based on Micropolis.
strategysandbox0 0 players -
36
Cimulity
by zeikar
You zone residential, commercial and industrial land and balance a budget in a minimal city sim.
strategysandbox0 0 players -
37
Line Rider
by Line Rider
You draw lines for a little sledder to ride and try to build a track that carries him all the way without crashing.
toysandbox0 0 players -
38
Powder Game 2
by ha55ii (DAN-BALL)
You drop powders, liquids, fire and wind into a fluid-dynamics sandbox and see what they do to each other.
sandboxtoy0 0 players -
39
Port Royal 1691
by @yajmch · built with Codex
You rampage through 17th-century Port Royal as a pirate, wrecking buildings and fighting townsfolk with ten different weapons.
sandbox3d0 0 players -
40
Grand Quack Auto
by @UdayMydam · built with Claude Code
You play a rubber duck loose in a city, honking at pedestrians, stealing cars and levelling up into a menace.
sandboxweird0 0 players -
41
MiniTown
built with Codex (GPT)
You lay out roads and zones in a tiny voxel town and watch residents move in, commute to work and light up their homes at night.
sandboxstrategy0 0 players
Every game here is free and runs in your browser with nothing to install. The order comes from players on Joystumble: thumbs up and down (weighted so a few votes don't outrank many), then how many people played. Made one that belongs here? Submit it.