Sign in Play in browser Install for Windows

Any world.
Any gameplay.
Any character.

Skate through portals in Halo and Stormwind, web-swing over Los Santos, play as Master Chief, Mario or Spider-Man. MASHBOX puts the worlds and play styles of the games you own in one engine, switched with the D-pad.

Install for Windows Play in browser Watch it play

Early access: the Windows app is out now, free.

Skate×Portals×Web swingLos Santos, Halo, Stormwind and Elden Ring, played as Master Chief, Mario and Spider-Man. Real play, captured in MASHBOX at 60 fps.

Play in your browser.

Browser-compatible worlds are our own: MASHBOX's engine, worlds and characters, running in this page on your graphics card. Sign in and play, nothing to install.

In the browser today: MASHBOX Blocks with its new realistic look, MASHBOX Island, MASHBOX Plaza and MASHBOX Super Park.

Install-compatible: Install for Windows to play the worlds and play styles of the games you own.

New this week.

A realistic Blocks

MASHBOX Blocks in the browser has a new realistic look. Play in browser

First person

In the browser, Modern Warfare 2™-inspired play now starts in first person, and art from a play style you have left is freed after 20 seconds.

Two-factor sign-in

Optional: protect your account with any authenticator app, with recovery codes in case you change phones. Turn it on from your account page.

New clips

Halo™-inspired guns in Limgrave, a web-swing up Limgrave's castle and Fox skating off a Los Santos roof. Watch them

Hold the D-pad. Pick a style.

This is the play-style wheel from the game, running here. Aim at a style and switch: in the game you keep playing in the same spot, the new way.

Zombies is a mode, not a style: pick it as the match type and every style plays against the horde.

Mash anything.

Pick a world from one game and a way to play from another. Every clip here crosses games and is real play, captured in MASHBOX.

Los Santos×Web swing×MW2 SoldierOff a Los Santos rooftop on a webA run across a downtown construction roof, a leap off the edge, then Spider-Man's swing down the street.
Hang 'Em High×Skate×Whiterun GuardThrough a portal into a Varial HeelflipA Whiterun guard skates a Halo map, goes through a portal and lands it clean.
Stormwind×Portals×Master ChiefMaster Chief through the Stormwind wallOut of a portal in the city wall and into a skate line on World of Warcraft's cobblestones.
Hang 'Em High×Elden Ring×Whiterun GuardElden Ring swordplay on a Halo mapSword swings and knockdowns against bots on Hang 'Em High.
Call of Duty×Spider-ManPayback, as Spider-ManA revenge kill in a Modern Warfare 2 team deathmatch.
Limgrave×Halo™-inspired×Team deathmatchHalo guns in LimgraveSniper scope, pistol and assault rifle kills in a team deathmatch across Elden Ring's grasslands.
Limgrave×Web swing×MW2 SoldierUp the castle on a webA web-swing run up Limgrave's castle walls in a team deathmatch, onto the top.
Los Santos×Skate×Web swing×FoxSkate, swing, skateFox skates off a Los Santos roof, swaps to a web-swing mid-fall from the wheel, then lands back on the board.

Play styles.

Twelve play styles on one wheel. The D-pad opens it: pick one and you keep playing, in the same spot, the new way.

  • Modern Warfare 2™-inspiredFast gunplay, create-a-class and killstreaks.
  • Halo™-inspiredShields, grenades and Halo's vehicles.
  • Call of Duty: Zombies™-inspiredRound-based survival with the box and perks.
  • Elder Scrolls™-inspiredSword, shield and magic.
  • BlocksMine, build and break any world.
  • Portal™-inspiredA portal device that works on every wall.
  • Fortnite™-inspiredWalls, ramps and floors, built in a tap.
  • skate.™-inspiredFlick-it skating anywhere, on any ledge.
  • Spider-Man™-inspiredSwing, zip and launch through any world.
  • Elden Ring™-inspiredSword, shield, roll and lock-on.
  • Resident Evil™-inspiredOver-the-shoulder aim.
  • Super Mario™-inspiredSuper Mario 64's jumps, flips and wall kicks.

Modern Warfare 2 and Call of Duty: Zombies are trademarks of Activision Publishing, Inc. Halo is a trademark of Microsoft Corporation. The Elder Scrolls is a trademark of ZeniMax Media Inc. Portal is a trademark of Valve Corporation. Fortnite is a trademark of Epic Games, Inc. skate. is a trademark of Electronic Arts Inc. Spider-Man is a trademark of Marvel Characters, Inc. Elden Ring is a trademark of Bandai Namco Entertainment Inc. and FromSoftware, Inc. Resident Evil is a trademark of Capcom Co., Ltd. Super Mario is a trademark of Nintendo. MASHBOX is unaffiliated.

Worlds from ten games, plus our own. 19 match modes.

Each game you own adds its worlds to MASHBOX, built on your PC from your own copy. A few of them:

Los Santos: GTA V world × web-swinging × Spider Guy
Los SantosGTA V world × web-swinging × Spider Guy
Whiterun: Skyrim world × Resident Evil 4 × Leon
WhiterunSkyrim world × Resident Evil 4 × Leon
Limgrave: Elden Ring world × Fortnite building × Master Chief
LimgraveElden Ring world × Fortnite building × Master Chief
Legion Square: GTA V world × Souls-like × knight
Legion SquareGTA V world × Souls-like × knight
Hang 'Em High: Halo world × Portal gun
Hang 'Em HighHalo world × Portal gun
Hang 'Em High: Halo world × Skate × Master Chief
Hang 'Em HighHalo world × Skate × Master Chief
Call of Duty: Modern Warfare 2
Rust, Terminal, Highrise, Favela, Afghan, Sub Base, Quarry, Skidrow, Karachi, Scrapyard, Wasteland
Halo: Combat Evolved
Blood Gulch, Hang 'Em High, Sidewinder, Chill Out, Prisoner, Damnation, Rat Race, Wizard, Longest, Beaver Creek, Boarding Action, Derelict, Chiron TL-34
Grand Theft Auto V
Los Santos, Legion Square, Vespucci Beach, Vinewood, Port of Los Santos
Marvel's Spider-Man Remastered
Midtown Manhattan
Fortnite
The island, with Battle Royale, and Wonkeeland
ELDEN RING
Limgrave
The Elder Scrolls V: Skyrim
Whiterun, Bleak Falls Barrow
Skate 3
Mega Park, Port Carverton Downtown
Nazi Zombies: Portable
Nacht der Untoten
Resident Evil 4
The Village
MASHBOX (no game needed)
MASHBOX Island, and Blocks: a new world from a seed

Pick any of them, then add play styles from the wheel.

Four ways to play a match.

Classic

The game as it was: its own map, its own rules.

Classic+

The same match with extras from your other games: a skateboard, a portal device, web-swinging, block building.

Remix

Any world with any game's rules and any character. Call of Duty in Los Santos, or Master Chief skating Hang 'Em High.

Hosted

Host a match from your PC and friends join it, with the same setup on every screen.

One engine underneath.

MASHBOX runs every world and every play style on our own engine. That is what lets a Skyrim fort take a Halo Warthog, or a skater drop into a Call of Duty match.

Everyone plays the same game

Movement, weapons and rules run in the engine, so every player in a match plays by the same rules.

Your games add the look

The worlds and characters come from the games installed on your PC. Nothing from any game ships with MASHBOX.

Built in, for everyone

Some play styles come with MASHBOX itself, such as skating, web-swinging and Halo-style play, so you can play them before you own the game.

Play together

Host a match and friends join it. One player can skate while another shoots, in the same world.

From download to playing.

One app does it all: it signs you in, installs the MASHBOX engine, finds your games and keeps everything up to date.

  1. Install

    One installer for Windows 10 or 11, 64-bit.

  2. Sign in

    With Google, the same account as this site. Your account comes with you.

  3. Find your games

    MASHBOX looks on every drive: Steam, Epic, Xbox, GOG and EA libraries, game folders and disc images. One question, once: do you own them?

  4. Play

    The app downloads the MASHBOX engine and keeps it current. Pick a game, a mode and a map (or mix your own), press Play, and the game opens straight into that match.

The download page

You decide what we build next.

Ask for a world, a gameplay or a character, and vote on everyone else's ideas. The team builds from the top of the board.

Ask for something

Players post requests and vote on them.

Talk it over in the community

Free. Everything in it.

  • Every world, gameplay and character we support, for the games on your PC
  • New ones as they pass our tests
  • Requests and votes on what we build next
  • Up to 3 PCs on one account
Free Sign in with Google Sign in, play, vote and join the community for free.

Questions.

What do I need to play?

A Windows PC and the games you want to mix, installed. MASHBOX builds each world from your own copy, so you need to own every game whose world, gameplay or character you use.

Can I download it today?

Yes: get the Windows app from the download page, sign in, and it installs the MASHBOX engine. It is early access, so expect rough edges.

What kind of PC does it need?

Windows 10 or 11, 64-bit, and a recent graphics card (we test on a 4 GB laptop RTX 3050). A small installer, then about 1 GB to play: every play style comes with MASHBOX. Worlds from games you own are built on your PC from your own copy.

Does MASHBOX change my games?

No. It reads your installs to build your worlds and never writes into a game folder. Your saves stay where they are.

Is anything from the games uploaded or downloaded?

No. Nothing from any game ships with MASHBOX, and nothing from your games leaves your PC. Everything game-made is built locally from your own files.

Can I add two-factor authentication?

Yes, if you want it. On your account page, turn on two-factor authentication with any authenticator app. You get recovery codes to keep, in case you change phones.

Does it play online?

Multiplayer is in early access: host a match and friends join it, each with their own games. MASHBOX never connects to a game's own online servers.

Which games come next?

Players vote. See the queue or ask for one.

Your games, mashed.

Get early access Watch the demos