Daisuke Amaya (天谷 大輔, Amaya Daisuke, born April 29, 1977), also known by his pseudonym Pixel, is a Japanese indie game developer. He is best known for developing Cave Story (洞窟物語, Dōkutsu Monogatari), which has been remade into many versions.

His most popular work, Cave Story, is a freeware PC platform game released in 2004 that was created entirely by himself over the period of five years. The game received widespread praise from critics and in July 2006 appeared at the top of Super PLAY's list of the 50 best freeware games of all time.

Amaya's other work includes the game Ikachan which he released in 2000, as well as many other low-profile games. His current projects, if any, are unknown. Before working on Kero Blaster, he was working on a game titled "Rockfish", which was intended to be finished sometime in 2012. The project was put on indefinite hiatus, and was likely canceled. Amaya was credited with the story concept for Nicklas Nygren's NightSky. In May 2014, Amaya released Kero Blaster, a side-scrolling platform shooter game. This game was Amaya's first major work since the release of Cave Story. In October 2015, Amaya updated Kero Blaster, under the name Kero Blaster ZANGYOU or overtime mode, featuring a new story, levels, and overall greater difficulty. In 2021, Amaya was credited for assisting in the development of MIYAKOpubl's game Haru to Shura.