Thank you for playing the game! I'm humbled to hear that it's a game you would play more later, means a lot.
No I haven't used the GameDevTV RPG course, although I can agree it is looks very similar (it's an RPG basically! xD)
I've learned from their course a few years ago. This project is the result of every knowledge I have cumulated over a few years from different sources, so it makes sense there are some similarities.
For this project everything was made by me manually during the game jam period. If you're interested, you can check out the public source code to see the building blocks of the game.
For the terrain, it was sadly a question of time. I was supposed to take care of the programming side and managing the project, but had to do the game design and map art for the last hours remaining. If I had more time I would have put more details to make a more compelling experience!
Thanks again for your feedback :)