What is a .YY file?
A .yy file describes a single GameMaker resource, like a sprite or object.
- Did you know
- GameMaker stores each game resource as its own .yy file.
- A .yy file is written by GameMaker Studio 2 from YoYo Games, with one such file describing each sprite, object, room or other asset in a game.
- Because the format is text-based and human-readable, .yy files sit comfortably under version control alongside a game’s source.
- What Analyser reads
- Identify and read more game and emulator files: Unity asset bundles, Unreal cooked assets, CISO/CHD disc images, FMOD/Wwise sound banks, Spine skeletons and atlases, GameMaker/LDtk/TIC-80 projects, Minecraft Anvil regions, Warcraft III maps, Ren Py and RPG Maker data, extra console ROMs (Atari, PC Engine, Master System/Game Gear, WonderSwan, 3DS homebrew), xdelta/Basis patches and emulator saves and movies.
- Depth of analysis
- .YY is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
- Open a .YY file
- Drag a .YY file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.