Digital distribution (also called content delivery, online distribution, or electronic software distribution (ESD), among others) describes the delivery of media content such as audio, video, software and video games, without the use of physical media usually over online delivery mediums, such as the Internet. Digital distribution bypasses conventional physical distribution methods, such as paper or DVDs. The term online distribution is typically applied to freestanding products; downloadable add-ons for other products are more commonly known as downloadable content. An online service for distribution of application software is usually called an "application store" or "app store". With the advancement of network bandwidth capabilities, digital distribution become prominent in the 2000s.

Content distributed online may be streamed or downloaded. Streaming involves downloading and using content "on-demand" as it is needed. Meanwhile, fully downloading the content to a hard drive or other form of storage media allows for quick access in the future.

Solid Snake (ソリッド・スネーク, Soriddo Sunēku^?), real name David (デイビッド, Deibiddo^?), is a fictional character and the protagonist of Konami's Metal Gear series. Created by Hideo Kojima, Snake is introduced in the first game of the series, Metal Gear from 1987. Snake has appeared in the majority of subsequent games and spin-offs. Japanese voice actor Akio Ōtsuka voices Snake in Japanese, while actor and screenwriter David Hayter provides the English voice of the character.

Introduced in Metal Gear, Solid Snake is a combination of spy, special operations soldier, and mercenary commando of FOXHOUND – a black operations and espionage unit. He is tasked with disarming and destroying the latest incarnation of Metal Gear, a bipedal nuclear weapon-armed mecha. Controlled by the player, Solid Snake must act alone, supported via radio by commanding officers and specialists. While during his first two appearances Snake's designs were references to Hollywood films, by Metal Gear Solid he was given a consistent design by artist Yoji Shinkawa alongside an established personality.