Hyper Light Drifter is an action role-playing game developed and published by Heart Machine. The Microsoft Windows, Linux and OS X versions were released in March 2016, and the PlayStation 4 and Xbox One versions in July 2016. A Special Edition port of the game, featuring additional content, was released by Abylight Studios for the Nintendo Switch in September 2018, for iOS devices in July 2019 and for Android devices in June 2024.

The game pays homage to 8-bit and 16-bit games, and is considered by its lead developer Alx Preston as a combination of The Legend of Zelda: A Link to the Past and Diablo. Preston originally launched Kickstarter funding for the title for approximately US$27,000 to develop the title for Microsoft Windows, OS X, and Linux computers, but ended up with more than US$600,000, allowing him to hire more programmers and artists, and expanding the title for console and portable platforms through stretch goals. Though originally scoped for release in 2014, various improvements in the game and issues with Preston's health set the release back.

The game received generally positive reviews upon release. A prequel, Hyper Light Breaker, entered early access on January 14, 2025.

Hyper Light Drifter is a 2D action role-playing game fashioned after The Legend of Zelda: A Link to the Past, rendered in a pixel art style. The player controls the Drifter, a character that has access to technology that has long been forgotten by the inhabitants of the game's world and is suffering from an unspecified illness. The story concept was inspired by lead developer Alx Preston's heart disease, and has been likened by others to Studio Ghibli's Castle in the Sky, while Preston cites the studio's Nausicaä of the Valley of the Wind as inspiration for the game's world.

The Drifter is equipped with a phase-shifted hard light energy sword and can gain access to other modules that expand their weapon and ability arsenal. These often require power from rare batteries scattered around the world. Weaponry includes long-range guns and area attacks. Rather than scavenging ammunition from the game world to load the player's guns, the player's ammunition instead charges when hitting enemies and objects with the energy sword. The player faces increasingly difficult monsters, both in number and ability, requiring the player to hone their tactics to succeed in the game. Preston's goal was to replicate the experience of playing on the SNES, noting that the unit had "amazing, almost perfect games designed for limited environments" which he challenged himself to simulate in Hyper Light Drifter. One feature of SNES games that Preston captured is that there is no spoken dialogue, placing more emphasis on the game's music and visuals to tell a story.

Hyper Light Drifter is primarily based on the vision of its key developer Alx Preston. Preston had been born with congenital heart disease, and throughout his life has been hospitalized with digestive and immune-system issues relating to this condition. While in college, Preston had used the mediums of painting and film to illustrate his experiences with frail health and near-death conditions.

Preston envisioned Hyper Light Drifter as a video game as a means "to tell a story [he] can identify with, expressing something personal to a larger audience, so [he feels] more connected and have an outlet for the many emotions that crop up around life-altering issues". Further, he had yearned to develop a game that combined the best elements of The Legend of Zelda: A Link to the Past and Diablo for many years, which would feature world exploration and combat that required some strategy by the player, depending on foes they faced. After several years of being an animator, he felt he could do so in 2013. The theme and story for the game, featuring a protagonist suffering from a terminal disease, is meant as a simile for his own health.

Preston originally set out to make the game for Windows, OS X, and Linux computers and started a Kickstarter campaign in September 2013 to secure US$27,000 in funding to complete the title. Prior to starting the campaign, Preston had secured the help of programmer Beau Blyth who created titles like Samurai Gunn, and musician Disasterpeace, who worked on the music for Fez. In a 2017 interview on the podcast The Futur, Alx noted that Kanye West offered to collaborate on the soundtrack of Hyper Light Drifter, but refused as Disasterpeace had already been secured to compose. He opted to develop the game under the studio name Heart Machine as an allegory for the various medical devices he often needs to track his own health, and to use for future projects following Hyper Light Drifter.