Gorgeous retro pixel art that's so dark and gloomy, and pitch perfect sound effects to evoke old 80s games. I love filling in the little maps both visually and mechanically. I found it really engaging, bordering on compulsive, up until around defeating the third boss. At that point, it started to feel like I'd figured out the right combination of rivers and forests to knock the game over, but would still have to spend aaages grinding out every session, and without much new stuff left to discover! Might come back to it in future.