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includes the title, and a couple structures in the back
Sometimes, a mysterious figure can walk up behind you. and sometimes, they're not so bad
took this screenshot too high up, but this shows a chunk error (structure) and a mysterious little pyramid
screenshot taken atop a forest, with a house you did not build in the distance
sometimes, an invisible entity can follow you around.
sometimes when underground you can find long 1 by 2 or 2 by 2 tunnels

Add some unnecessary spook to your world!