what is dead by daylight?

Dead by Daylight is an online asymmetric multiplayer survival horror video game developed and published by Canadian studio Behaviour Interactive. It is a one-versus-four game in which one player takes on the role of a Killer and the other four play as Survivors;[a] the Killer must hunt and impale each Survivor on sacrificial hooks to appease a malevolent force known as the Entity, while the Survivors have to avoid being caught and power up the exit gates by working together to fix five generators.

Perks

Survivors and Killers each have the option to use up to four perks in their loadout, which gives their characters special abilities. Perks differ between Survivors and Killers; a Survivor perk may not be used by Killers and vice versa. Examples of Survivor perks include a burst of speed when running from the Killer, the ability to self-heal without a med-kit, briefly sabotaging sacrificial hooks without a toolbox, and many more. Examples of Killer perks include seeing Survivors through walls, hindering the effects of struggling Survivors while taking them to a hook, preventing generators from being worked on, regressing generators, speeding up the recovery from a missed basic attack, and many more.

killer

When hunting Survivors, the Killer must capture them by either striking them with their weapon twice and picking them up off the ground while they are in the dying state (one strike injures Survivors and a second strikes puts them into the dying state) or by grabbing them in one move by catching them unexpectedly while they interact with objects such as generators. Although Survivors can attempt to pull themselves free of the hook the first time they are impaled, there is only a 3% chance of success and failed attempts lead to a faster death. They can also be saved by other Survivors. If they are hooked a second time, they enter a phase in which they must resist the Entity as it attempts to take them out of the game by performing skill checks until they are either killed or rescued. If they are hooked a third time, they will be sacrificed to the Entity.

Survivor

The Survivors' movement options consist of sprinting, walking, crouch-walking, or crawling if they are in the dying state. They must elude the Killer by losing their line of sight in a chase or by successfully hiding from them. Most Killers can move at a pace that is moderately faster than that of a sprinting Survivor but are slower in other movements, such as vaulting obstacles, which can buy Survivors time. Survivors can throw down wooden pallets placed at key locations on the map, and if the Killer is close enough to the pallet when the Survivor throws it down, they will be stunned for a brief moment. The Survivor can then vault over the downed pallet, but most Killers cannot, and must either spend time to break the pallet or go around it. The Killer also has an aura-reading ability, constantly revealing the location of generators, hooks, and sometimes Survivors. Every Killer has their own unique power that can be altered using add-ons obtained through gameplay. A significant amount of the gameplay revolves around chases, with Survivors using their environment and wits to outmanoeuvre the Killer and escape them or at least buy time for their allies to complete objectives.