wow this is definitely worth looking at. A complete game ready to go.
Store system. Be able to buy items.
really cool combat system. the creator of this combat code is making a really cool looking game.
Chromatic aberration shader. Could be useful.
involved way to edit the entire color pallet of a level. Great for shifting colors in different areas. Might not work with latest version of GM.
Dynamic water object. Could be useful.
Hue shader that allows to shift hue in game. Free!!!!
free shader for being able to adjust the saturation in game of the entire screen.
template file for a isometric tactical rpg. Expensive!!!!
math functions for gamemaker. Over my head at the moment but worth keeping track of.
platformer with a bunch of features
procedurally generated top down dungeon template
grappling hook mechanic