Open WIN files in your browser
The file a GameMaker game keeps everything in beside its program, from Undertale to Pizza Tower. Open one right here as a folder of its art and sounds. Nothing leaves your device.
Or drop it anywhere on this page
What you'll see
Your file opens like a folder, its files listed on the left, with a page beside them on what it is and what it holds.
- Listed like a folder • Unpacks only what you pick
- A page on what it is • From its own manifest or index
- Pictures, sounds and text • Each opens in its viewer
- Export • Save as ZIP or Extract all
About WIN
Games made with GameMaker Studio, from 2012 on, ship as a small runner and one data file beside it: data.win on Windows, game.unx on Linux, game.droid on Android and game.ios on Apple's systems. Undertale, Deltarune and Pizza Tower are data.win games, and modding tools open the file to change their art and text.
A data.win is an IFF FORM of chunks. GEN8 names the game and its GameMaker version, STRG keeps every string, TXTR its texture pages as PNG or GameMaker's own QOI, TPAG where each picture sits on them, SPRT, BGND and FONT its sprites, backgrounds and fonts, SOND and AUDO its sounds, ROOM its rooms and CODE its compiled code, which is empty in a game built with YYC.
Filepeek lists the texture pages, each sprite as a strip GameMaker imports again, the backgrounds, the fonts' letters, the sounds and the strings in folders, and the page names the game, its GameMaker version and its rooms. The code is listed and never run.
GameMaker game data
.win • .unx • .droid
Format
- MIME type
- application/octet-stream
- Made by
- YoYo Games, for GameMaker
- Released
- 2012
Inside the file
- Container
- An IFF FORM of chunks
- Pictures
- Texture pages in PNG or QOI
- Sounds
- In AUDO and the audio group files
- Code
- Bytecode, or none with YYC
Opens in every browser
Filepeek opens a WIN as a folder in Chrome, Edge, Firefox and Safari. On their own, browsers only download it.
- YouChromeOpens through Filepeek
- YouEdgeOpens through Filepeek
- YouFirefoxOpens through Filepeek
- YouSafariOpens through Filepeek
Apps that open WIN
- WindowsUndertaleModTool
- MacNo app opens it
- iPhone and iPadNo app opens it
- AndroidNo app opens it
Questions
How do I open data.win?
Drop it on this page or choose Peek a WIN, with the audiogroup .dat files beside it for the sounds kept there. Its sprites, sounds and strings are listed in folders.
Can I take out a game's sprites?
Yes. Each sprite saves as a PNG strip of its frames, named as GameMaker imports it again, and Extract all takes every picture and sound.
Does it decompile the code?
No. The code entries are listed with their sizes and never run. UndertaleModTool opens and decompiles them.
Does it open game.unx and game.droid?
Yes. They're the same file under the names GameMaker gives it on Linux and Android.