Ancient Vault
Once the main story is completed, the mysterious trader will offer a new quest: The Final Frontier. After accepting this quest, you can exchange various crafting materials for Ancient Keys. Ancient keys can be used once to unlock a dungeon at an Ancient Gateway at the edge of many solar systems.
Using the Ancient Console at an Ancient Gateway while a key is in your inventory will activate a temporary portal to an Ancient Vault. This portal will close after 30 minutes or if the console is used to close the portal; if you do not enter the Ancient Vault before this time or is defeated after it closes, you need another key to open a portal to a new Ancient Vault.
Ancient Vaults are not associated with the gate you use to access them. The same gate can open portals to different dungeons when a Vault Key is used.
In an Ancient Vault, your Hunger bar do not deplete, can beam to your ship at any time and do not drop items on death.
Ancient Vaults are procedurally generated, have a difficulty Tier of 8 (7 for guardians and their minions), and have one of four elemental themes: fire, ice, electric or poison. The elemental theme determines the types of rooms and monsters that will appear in the Ancient Vault; this also influences the types of weapons that are most effective due to the resistances and weaknesses of the monsters. However, most of the Ancient Vault is composed of ancient blocks and other ancient architecture.
Ancient Essence
Ancient Essence is a unique currency only obtained in Ancient Vaults. It glows purple and emits light after dropping. It drops from slain monsters in quantities of 7-13 at a time and falls out of broken pots in quantities of 1-4 at a time depending on the sizes of the broken pots. Ten packets of 8-12 essence each are flung out from vault chests when they are opened. Additionally, Vault Guardians (detailed below) drop 1250 essence in packets of 25 when defeated.
You can hold up to 999,999 Ancient Essences at a time. If you reach the Ancient Essence limit, you must spend some Ancient Essence at a Terraforge, Weapon Upgrade Anvil, or placed Terraformer before you can pick up more Ancient Essence.
Vault Monster Drops
Unique monsters in Ancient Vaults always drop 7-13 Ancient Essence; in addition to this, they will drop nothing (80% chance), one of their characteristic monster drops (19.88% chance), or their Action Figure (0.12% chance).
Monster drops in Ancient Vaults differ from those outside of Ancient Vaults in several ways:
- Monsters in Ancient Vaults never drop raw meats.
- Monsters in Ancient Vaults have the same drop probabilities regardless of whether a hunting weapon or a non-hunting weapon deals the killing blow.
- Action figure drop chance from monsters in Ancient Vaults (0.12%) is 20-50% higher than that from monsters outside of Ancient Vaults (0.08% for no-meat monsters and non-hunting kills of meat-dropping monsters, 0.1% for hunting kills of meat-dropping monsters).
Vault Guardians
Guardians are procedurally generated bosses which are found at the end of each vault. Ancient Guardians and their minions, unlike other monsters in the vault, are Tier 7 monsters.Every guardian has a name reminiscent of ancient Greece, and is associated with one of the four types of elemental damage, indicated by the color of their glowing parts. Specifically, fire, poison, ice and electric guardians have orange, green, blue and purple glowing parts, respectively.
Like other procedural monsters, Ancient Guardians are assembled using different pieces; there are many variants of head, body, and weapon parts, and guardians can use a variety of special attacks, which are chosen on generation. Most have small summoned minions and a personal shield which must be deactivated in order for the player to be able to deal damage to them. Several types of shields exist which must be deactivated in different ways, and some guardians have no shield at all; these guardians often have very high amounts of health to make up for not possessing a shield.
Ancient Guardians are immune to all Status Effects that can be inflicted by players. In addition, they possess a resistance to damage with an elemental type identical to their own. Specifically, Fire Guardians, Poison Guardians, Ice Guardians, and Electric Guardians take 50% less damage from fire-type, poison-type, ice-type, and electric-type weapons, respectively.
The door to the boss room is a one-way door, forcing one to defeat the boss in order to open a doorway on the opposite side. The strategy for defeating a given guardian varies based on the set of attacks used by that guardian as well as by the kind of shield (or lack of shield) possessed by the guardian. After defeating the guardian it will always drop 1250 Ancient Essence; in addition, it has a 50% chance to drop a random mini-biome terraformer. Defeating the guardian will open a door that leads to a room with two unique crafting stations, which only appear at the end of Ancient Vaults.
- Terraforge - This powerful crafting station can assemble planetary Terraformers. They can be placed to change the climate and biome of a planet when supplied with Ancient Essence. Terraformers require 3000 Ancient Essence and either 50 Scorched Cores, 50 Static Cells, 50 Venom Samples or 50 Cryonic Extracts to craft, depending on the biome of the terraformer.
- Weapon Upgrade Anvil - This special anvil can make non-Tier-6 Legendary unique weapons more powerful in exchange for Ancient Essence. Weapons will have their tier upgraded to 6, replacing their original tier's base damage multiplier with tier 6's 3.5x base damage multiplier. Upgraded Legendary unique weapons will have a gold star next to their name inside the tooltip window as well as a different appearance.
Vault Murals
When a player enters an Ancient Vault, a piece of a mural appear near the entrance. The mural has text in the ancients' language. Six different pieces can appear, which can be combined and deciphered to the following text:
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