What was the Nintendo 64 called during development?

Nintendo called the Nintendo 64 “Project Reality” during development.

The name reflected Nintendo’s partnership with Silicon Graphics, whose technology was intended to bring advanced three-dimensional graphics to a home console. Nintendo announced the project in 1993, describing it as a next-generation system with powerful 64-bit processing.

The console was later known internally and publicly for a time as the Ultra 64 before Nintendo settled on Nintendo 64. It launched in Japan on June 23, 1996, followed by North America in September and Europe in March 1997. Its controller introduced a central analog stick that became particularly important for 3D movement.

Project Dolphin is the development codename associated with the Nintendo GameCube, while Project Revolution referred to the Wii. Those names are therefore common alternatives in Nintendo-history quizzes, but neither describes the Nintendo 64’s original development project.