Unlockables are game features in Dead by Daylight .
There are 5 main and 3 sub-types of Unlockables in the Game.
Types of Unlockables
Add-ons are used by both the Killers and the Survivors. They are parts that can be added onto a Survivor's Item or a Killer's Power in order to change, improve and/or expand their functionality, even adding new effects.
Up to two Add-ons can be selected for use before a trial. Killers always use up their Power Add-ons after the trial unless they burnt a Black Ward Offering. Survivors will also lose their Add-ons after the trial, unless they escape the trial holding an item whilst using Ace in the Hole , or have burnt a White Ward Offering.
Items are exclusive to the Survivors. They are tools that can help them with their survival during a trial, they can be improved with up to two Add-ons at a time. They can also be found in Chests or be dropped by other Survivors during trials. Completing a trial with an Item will reset its durability and allow it to be reused in a next trial. This includes Add-ons if the Survivor is using Ace in the Hole .
Mystery Boxes are used by both the Killers and the Survivors. They can obtain any other Unlockable (with the exception of Perks) whose Rarity will be equal or rarer than that of the Box itself.
Offerings are used by both the Killers and the Survivors. They can be used to affect the outcome of the chosen Map, reward more Bloodpoints, changing aspects such as Lighting, Fog, the amount of Chests, Hooks, and more. Offerings are lost upon use.
Perks are used by both the Killers and the Survivors. They grant an individual bonus and once unlocked will never be lost. Players can choose up to four Perks per trial, assuming that all Perk Slots have been unlocked, which is dependent on their Character's Level. All Survivors and Killers have three Unique Perks, which initially cannot be unlocked by the other Characters until one unlocks them on specific Bloodweb Levels on the original Character's Bloodweb or buys them from the Shrine of Secrets.
Achievements are unlocked when completing certain actions in-game. They show progress and personal Achievements of each Player in the game Dead by Daylight.
Charms are additional Customisation options that have various means of being unlocked/earned by the Players.
Daily Rituals are optional Challenges that require the Player to complete certain in-game actions which will then be rewarded with a generous amount of Bloodpoints. One new Challenge or Daily Ritual is added each day, whether or not all previous have been completed or not. There are only a maximum of 3 Daily Rituals displayed each day.