Hopefully better late than never. Check out the mirror post on the GameMaker community forums: https://forum.yoyogames.com/index.php?threads/disarm-gml-spriter-runtime.89629
Katsaii presents:
Disarm
A Pure GML Spriter Runtime for GameMaker Studio 2.3+
Homepage | Wiki | Installation
Features
Supports most of the stable features of Spriter Pro, including:
Multiple entities per armature
Pivot points
Character maps
Sprite and point attachments
Bone keyframes for translation, scale, rotation, parent, and transparency
Attachment keyframes for translation, scale, rotation, parent, transparency, pivot point, frame index, and z-index
Animating between keyframes instantly, or by using linear interpolation, quadratic interpolation, or cubic animation
Animating the z-order and hierarchy of bones and sprites
Other features supported by Disarm include:
Combine and layer multiple character maps
Modify entity data at runtime
Render animations whose sprites span multiple texture pages
Blend between multiple animations
Bake groups of animations into a sequence of vertex buffers that can be reused later
Gallery
Playing back an animation in GameMaker
