Any world.
Any gameplay.
Any character.
MASHBOX turns the games you already own into one game. Take a world from one, the way another plays, and a character from a third, with a modern high-end look. Switch any of them with the D-pad while you play.
In development. The Windows download comes next.
Elden Ring, from its store page.
Demos.
Captured in MASHBOX at real speed. New ones land here as they pass our review.
The first demos from the new MASHBOX are being captured now. They show up here as soon as they pass review.
One game, made of your games.
Every game brings a place, a way to play and the people in it. MASHBOX keeps the three apart, so you can put them together any way you like.
- WorldsCities, castles and open country from your games, at full detail with modern lighting and shadows.
- GameplaysShoot, skate, swing, fight with a sword or build. The D-pad switches how you play, in the same spot.
- CharactersPick who you are from one game and take them into another.
- From your own copiesMASHBOX builds everything on your PC from games you own. Nothing from any game ships with it.
Games we're bringing in.
These are being built now. A game counts as playable only once it passes our tests, and the demos above show where each one stands.
Grand Theft Auto VLos Santos as a world.
Elden RingThe Lands Between, its fighting and its bosses.
Marvel's Spider-Man RemasteredManhattan as a world, and swinging through it.
Cyberpunk 2077Night City as a world.
The Elder Scrolls V: Skyrim Special EditionIts cities and wilds as worlds, and its people.
Call of Duty: Modern Warfare 2 (2009)Call of Duty's shooting and its multiplayer modes.
Skate 3Skate 3's skating, anywhere.
Resident Evil 4 (2005)Its over-the-shoulder fighting and its Ganados.
Our mods for Resident Evil 4 (2005) · Vote on the next games
From download to playing.
One app does it all: it signs you in, finds your games, builds your worlds and keeps MASHBOX up to date.
Install
One installer for Windows 10 or 11, 64-bit.
Sign in
With Google, the same account as this site. Your membership comes with you.
Find your games
MASHBOX looks through Steam's libraries and any folder you add. Confirm you own each game once.
Build and play
Your worlds are built on your PC from your own game files, once. Then pick a world, a gameplay and a character.
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.
Top requests
One membership. 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
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?
Not yet. MASHBOX runs on our own machines today. The download page offers the installer as soon as the first build is ready. Sign in now and you're first in line.
What kind of PC does it need?
Windows 10 or 11, 64-bit, and a recent graphics card. We'll list exact requirements and disk space with the first download.
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.
Does it play online?
Multiplayer modes are being built. MASHBOX never connects to a game's own online servers.
Which games come next?
Members vote. See the queue or ask for one.
Your games, mixed.
Resident Evil 4The 2005 classic, on its Steam release. Every mod is built and tested against the exact game build. Single-player only.
Every mod you get
Discussion
Open the conversationWhat we add next.
Upvote the games you want to see as worlds, gameplays or characters. The one with the most votes is next in line, and you can change your mind any time.
The queue opens soon.
We're lining up the next games now. Sign in, and you'll be able to vote the moment they appear.
Sign ingeneral
MASHBOX for Windows
Windows 10 or 11, 64-bit. One app installs MASHBOX, keeps it up to date and builds your worlds from your own games. The installer appears here as soon as the first build is ready.
After you install
- Sign in with Google, the same account as this site. Your membership comes with you.
- MASHBOX lists the games it finds on your PC, in Steam's libraries and any folder you add. Confirm you own each one once.
- MASHBOX builds your worlds on your PC from your own game files. It does this once per game, and you can watch the progress.
- Pick a world, a gameplay and a character, and press Play. Switch them with the D-pad while you play.
Updates download on their own, only what changed. Signing out in the app or here signs that device out; your account and membership stay as they are.
The first time you run the installer, Windows may say it protected your PC. Choose More info, then Run anyway.
Sign in
One Google sign-in for the website and the app. New here? Signing in creates your account.
By continuing you agree to the terms and the privacy policy.
Signed in
Ownership declaration
MASHBOX works only with game files already on your PC. By using MASHBOX you declare that you own each game you use with it, bought on Steam or on its original disc, and that its files on your PC, including any disc image, came from your own copy.