tldr: in-browser 2D strategy game: https://bjhemmingway.itch.io/scp-3462
SCP-3462 is based on the Blockbuster SCP, I created a game for a game jam a few years ago based on this story using Unreal Engine and in a 3D setting. I wanted to "de-make" this project and test myself with the Gamemaker engine.
I created all the sprites and audio myself, coded too, but with a lot of reference materials.
You can play in-browser or download the install.exe and play natively.
ENJOY!