Episode 3

The best part is that you can get items with just type commands. For example "/item 3543" you get the Daybreak. Daybreak is a hardmode weapon that you can craft after you defeat Wall of Flesh.
Wall of Flesh can be found in The Underworld. After defeating Wall of Flesh you must defeat Golem.

After defeating Golem, find a dungeon. In front of dungeon, you can find 4 peoples in Blue Robe. Kill all of them and then the Lunatic Cultist will spawn. You must defeat the Lunatic Cultist to get Ancient Manipulator. But I suggest you get stronger weapon, because after you defeat Lunatic Cultist you must prepare to fight the 4 Celestial Tower. The Celestial Tower come with 4 type, which are Stardust Pillar, Nebula Pillar, Vortex Pillar, and the Solar Pillar. Each had it's own unique attacks. But that's not only that, because after you defeat the 4 Celestial Tower here comes the worse part ....