Idea 3
For my third idea I decided to make a combination of idea one and two by using mine craft as a way of rebuilding things.
I managed to make a roman style temple and as you have unlimited resources in creative mode you can add things like fire pits either side for greater detail.
Verbs
What can the player do... The player has to guess what materials are used to make the temple and use the resources provided, mine craft might not have all the resources you need so say you have to get at least 5 of them right.
Rules
Why is the player doing it... Seeing as Minecraft is a better way of reimagining and rebuilding things the player has a better chance of replicating something and maybe even change up the detail to their liking.
One person could model something in blender and then the opposing player has to recreate it in Minecraft, and with the resources they have in Minecraft they need to identify what materials the piece of architecture has and use the materials provided in Minecraft.
https://en.wikipedia.org/wiki/Ancient_Greek_temple#:~:text=The%20first%20temples%20were%20mostly,were%20protected%20with%20wooden%20planks. link for materials used to make greek temple
Mechanics
How the player does it... identify, move around, place down blocks