Survival Expansion lengthens the gameplay of Minecraft by adding more bosses past the Ender Dragon. The first of which (final boss of Survival Expansion II), is Helvius. Before attempting to fight Helvius, it is important to prepare as much as possible due to the difficulty of this boss. Therefore, a new gear set has been added to the game which could be considered a mandatory upgrade to progress. The Neptunium Set is acquired by killing Elemental Titans only after the Ender Dragon has been defeated. The Elemental Titans will drop Neptunium Essence, which can be combined with enchanted Netherite gear and netherite scrap in a Haven Altar to convert it to a Neptunium Set piece (Unless in Grandmaster/Legendary Mode as you receive a Neptunium Set drop each dragon kill). As soon as you get your full set of Neptunium Gear, you may begin attempting to kill Helvius. Helvius can be summoned at a Summoning Station with Neptunium Essence as ignition.