Generally, the easier an engine is the learn, the more restrictions and limitations it will have. So if you want to make a very specific type of game very quickly, you can learn RPG Maker in a few days, but it has a ton of rules for how tilesets work. At the other end of the spectrum, you can take weeks/months to learn Unity and make any kind of game you want with any kind of assets.
Viewing post in Free Pixel Art Tileset - Gentle Forest comments
Ahh that makes sense! I'd like something I can learn the basics of moderately quickly, but can also take the time to really master without being too intimidated. Currently tinkering in PixelMaker MV, and since it's somewhat allowed me to import and place things I got here, I call that a win. My two main game ideas are for a top-down ARPG and a metroidvania, as those are some of my faves to play.