Dying Light

Dying Light is an open-world first person survival horror video game developed by Polish video game developer Techland and published by Warner Bros. Interactive Entertainment. Announced in May 2013, it was released in January 2015 for Microsoft Windows, Linux, PlayStation 4, and Xbox One. The game was once planned to be released on PlayStation 3 and Xbox 360, but was later cancelled due to hardware limitations.

The game revolves around an undercover agent named Kyle Crane who is sent to infiltrate a quarantine zone in a city called Harran. It features an enemy-infested, open-world city with a dynamic day and night cycle. The day-night cycle changes the game drastically, as enemies become more aggressive and more difficult to deal with during night time. The gameplay is focused on weapons-based combat and parkour. The game also features an asymmetrical multiplayer mode (originally set to be a pre-order bonus); and a four-player, co-operative multiplayer mode.

The development of the game began in early 2012. Prior to the game's official announcement, several reports claimed that Dying Light was a sequel to Dead Island, another franchise created by Techland. The rumor was later denied. The game's parkour system puts emphasis on natural movement. To implement that, Techland had to abandon most of the story elements, and had to build them again from scratch. The music development was handled by Paweł Błaszczak. According to him, the soundtrack was inspired by movie soundtracks of the '70s and '80s.

Light

Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum. The word usually refers to visible light, which is visible to the human eye and is responsible for the sense of sight. Visible light is usually defined as having wavelengths in the range of 400–700 nanometres (nm), or 4.00 × 10⁻⁷ to 7.00 × 10⁻⁷ m, between the infrared (with longer wavelengths) and the ultraviolet (with shorter wavelengths). This wavelength means a frequency range of roughly 430–750 terahertz (THz).

The main source of light on Earth is the Sun. Sunlight provides the energy that green plants use to create sugars mostly in the form of starches, which release energy into the living things that digest them. This process of photosynthesis provides virtually all the energy used by living things. Historically, another important source of light for humans has been fire, from ancient campfires to modern kerosene lamps. With the development of electric lights and power systems, electric lighting has effectively replaced firelight. Some species of animals generate their own light, a process called bioluminescence. For example, fireflies use light to locate mates, and vampire squids use it to hide themselves from prey.