RGSS3A is a file archive format for storing various 2D and 3D objects. RGSS3A files are generated by RPG Maker VX Ace, a computer role-playing game (RPG) creation tool.

RGSS3A files can store such resources as maps, character models, or object textures. RGSS3A save data in binary format. RPG Maker VX Ace is available only for Microsoft Windows platform. The current version of RPG Maker VX Ace was released in 2007 and is not compatible with newer operating systems. License to use RPG Maker VX Ace is available for purchase on Steam software distribution platform.