You can use this Raycaster Engine with credit. If you want to change the map, go to the map sprite and edit the costume into the area you want. Also, like and love, it helps me a lot :) Arrow keys to move! Sorry, mobile players, I can't figure out how to make mobile controls, and I didn't want this project to come out in like, a year. Sorry again, and just go on a computer or something.
I've been focusing on 3D nowadays, and I thought that a Raycaster would be a fun way to challenge my coding skills! Stop reading, and just see how it turned out!