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Games like GameSparks SDK for Game Maker: Studio (Unofficial)

GIF
Design pixelart effects and render them to .png sprite sheets or .gifs.
GIF
Geon FX
$9.99
Simply stunning Particle Editor For GameMaker: Studio and GameMaker Studio 2
CryPixels
$19.99
Procedural Sprite Generator
Learn GameMaker Studio's Scripting Language Today