This is just an idea Time to make some sort of player. ;)
How this would work: Basically, I think the player should start on the surface and be able to go down into caves down below with the following area. They can be done in any order, to keep the open-world feel. - Sapphire Zone An ice cave where not only sapphires are, but spiky icicles - Ruby Zone An abandoned forge area where they lie hot lava with monsters in it. - Emerald Zone A jungle full of lush green grass, great vines, and tall trees. Also, thorny bushes and player eating plants -Stone Zone A zone of death and destruction, and is supposed to be the final area. There's no life there, just evil deadly spirits.