User:Hypixion/sandbox

Blueprints
Blueprints are items that are used to unlock new gear, mutations and outfits. They can be found by killing enemies or in secret areas blocked by keys, rune requirements, puzzles, timed doors or are just hidden. Some are limited by BSCs, either they don't drop on lower BSC or the items or pathways required to get them are limited by BSC.

When a blueprint is found the player has to talk to the collector in any biome transition to deliver it and be able to unlock it. To unlock it you will need to pay cells to the collector. When the total cell cost has been payed the item can be found in game, selected in outfits or bought from guillian.

Rarity
Blueprints have 5 rarities each with their own dropchance.


 * Always (100%) with 68
 * Common 10% with 20
 * Uncommon 1.7% with 31
 * Rare 0.4% with 62
 * Legendary 0.03% with 2

Note that of the always rarity the majority drops from bosses are on a specifc BSC as seen in the table below. Killing a boss on a higher difficulty will also drop the blueprint that is next in sequence to drop from the boss, so you might get a blueprint drop that can drop from a lower BSC.

Secret blueprints
There are 42 blueprints don't drop from enemies or bosses but are found in secret areas after solving a puzzle, reaching a timed door, exploring, rune required areas, locked doors or the daily trial. Altough most of these are generated on all difficulties some require items or routes that are blocked by higher BSC. A few are only available after a certain amount of runs.

There are 2 blueprints that drop from 5 BC Spoiler boss but have a secret requirement.

Information on how to find these can be found on the Gears, Mutations, Outfits and The Collector pages.

Droprates
The way blueprint droprates work is a bit different from what you expect. During level generation a there is a chance based on rarity that a blueprint gets assigned to a viable enemy for it to drop from. So if level generation assigns a blueprint to an enemy you will need to kill that specific enemy to get the blueprint. If you don't kill that enemy you will miss the blueprint, even if it is 100% droprate.

Limit
The dropping of blueprints from enemies is limited to 1 blueprint per biome in total. Even if there are multiple blueprints with 100% droprate.
 * This limit can only be exceeded by the hunter's grenade.
 * This limit does not apply or is not influenced by blueprints found in secret areas.

The hunter's grenade
See the main article for information about the hunter's grenade.

A blueprint drop can be forced by use of the hunter's grenade. when used on an enemy it will transform into an elite version of itself, or if that is not possible, an elite zombie and drop the blueprint extractor. Damage the elite until a message pop-ups informing you to use the extractor. Use it and the elite enemy dies and drops a random blueprint from its lootpool.