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Games like Game Maker Studio HTML5 Local & Session Storage Extension

Create one sprite, have unlimited possibilities!
Livecoding for GameMaker: Studio / GameMaker Studio 2
Fully commented and working shooter engine with clever shooter and stealth based AIs
Fantasy computer for making, playing and sharing tiny games.
Run in browser
Draw sprite stacks quickly and with ease!
Design pixelart effects and render them to .png sprite sheets or .gifs.
Bring that GameBoy charm to any project!
Add animations to your images to make them juicy!
A playful music creation tool that like a game console music editor
Fixing the draw_sprite_pos function with a shader and one script.
Essential Extensions for the Way You Work
MindTex 2
Ridiculously Simple Normal Map Creation
Voxel editor suited for 2D artist with animations and retro rendering.
Geon FX
Simply stunning Particle Editor for GameMaker Studio 1-2 with a PNG and GIF Export