Good old GM games. Nice to remember how most of us started in game development. Thanks for sharing this collection =D
Old Games Pack
A downloadable faerts for Windows
These are my unfinished GameMaker games.
-in "1" you can press the ground button to go to the unfinished platformer.
-in "3" you press z to shoot.
-in "4" press any key to go to the main menu.
-in "7" click a sign with the left mouse button to build a fire tower.
-in "10" click on a shape to select it and then use arrow keys to move/rotate.