Guide talkDefending against invasion events Terraria WikiTerrarium buccaneer heart invasion can be a thrilling event within Terraria. Heart the thrill of confronting the buccaneer invaders as they plunder through your peaceful world! Love the test they bring, and acquire precious loot in the process. Brace yourself, sailor! The heart of the ocean is coming, and the buccaneers are ready to overrun your own terrarium.