You seem to be confusing gameplay aspects with the setting of the game. Mining, building, crafting, exploring and "player choice" (???) can all exist in a fantasy game. Example: I would consider Hytale to be a fantasy game given its trailers and promotional material, but yet it looks as though it's going to contain a lot of these exact things you've mentioned. Terraria could also be considered a fantasy game and contains all of these, although Terraria has a few Sci-Fi themed mobs/items/blocks/structures.