The Epic Gamer
Terrarian
So this idea is in its infancy and I'm just going to write it down as I think of it
When you load a world a few parts of the map are pre-loaded. Maybe part of a sky island is revealed, or a glowing mushroom biome, or even an abandoned cave house thing (whatever they are called). Rarely from enemies or likely from rare chests, you'll find a "map scrap" which reveals another feature of the world that hasn't been discovered. Support for mods would also be nice, like calamity's elusive shrines or... some other mods rare structure (I have only really played far through calamity please be gentle)
Full list of structures that I can think off the top of my head: Sky islands, chests (surface, golden, biome chests in the dungeon), glowing mushrooms, jungle temple, granite, marble, shadow chests, spider caves, gem caves, and large ore veins with explosive nearby
When you load a world a few parts of the map are pre-loaded. Maybe part of a sky island is revealed, or a glowing mushroom biome, or even an abandoned cave house thing (whatever they are called). Rarely from enemies or likely from rare chests, you'll find a "map scrap" which reveals another feature of the world that hasn't been discovered. Support for mods would also be nice, like calamity's elusive shrines or... some other mods rare structure (I have only really played far through calamity please be gentle)
Full list of structures that I can think off the top of my head: Sky islands, chests (surface, golden, biome chests in the dungeon), glowing mushrooms, jungle temple, granite, marble, shadow chests, spider caves, gem caves, and large ore veins with explosive nearby