The Eye of Cthulhu is a pre-Hardmode boss. It is one of the first bosses a player may encounter, as it spawns automatically when a relatively early level of game advancement is achieved. It can also be summoned manually with the Suspicious Looking Eye at night (see Spawn below). While the Eye of Cthulhu is alive, the music Boss 1 will play. When Otherworldly music is enabled, the track Boss 1.. The Eye of Cthulhu is a pre-Hardmode boss. It is typically one of the first bosses a player may encounter, as it spawns automatically when a relatively early level of game advancement is achieved. It can also be summoned manually with the Suspicious Looking Eye at night (see Summoning and spawning below.
In Terraria, the Eye of Cthulhu usually summons itself automatically if certain early-game milestones are met. If you want to force-spawn the Eye of Cthulhu, you can craft and use the Suspicious Looking Eye. Here's how to summon the Eye of Cthulhu in Terraria pre-Hardmode.. Unlock the secrets to defeating one of Terraria's most iconic bosses with this complete Eye of Cthulhu guide! Whether you're a new player or a seasoned adventurer, this video breaks down.