You can find the game here, totally free
https://unchiga.itch.io/connect-td
I've been using Gamemaker for about 13 years now and for this project I used Gamemaker Studio 2 Beta. This is the 3rd game I've finished with the engine. I used the GML code, (I personally can't stand the visual code) and I think it turned out OK.
I'm happy to answer questions about the game development or any questions about the game in particular. I've always been a long-time fan of defense-type games and this was definitely a fun project for me.