Hi Sean,
So I commented about a year ago, asking if I could include your game as an example in a tutorial guide I was creating for the Raycasting Game Maker. Work on the tutorial was on an off over the past year, but I'm very happy to say it is finally complete.
Something in the Water was featured several times in screenshot and video examples for several features and engine tricks, so I wanted to thank you again for allowing its inclusion.
Here is a link to the finished guide: https://filmgamerj.itch.io/guide-to-raycasting-game-maker