Thanks for the reply!
Huge coincidences. In Eastward the final boss is also a dragon. I guess they're RPG tropes so it makes sense. At first, I also wanted "cities" where you could buy items, but I ended up focusing on the "action" more than the "RPG".
I didn't know much about roguelikes back then, so that's one thing I missed. But now I'm making a roguelite, Roguemance.
Where are you from in Brazil?