A video game remake is a video game closely adapted from an earlier title, usually for the purpose of modernizing a game with updated graphics for newer hardware and gameplay for contemporary audiences. Typically, a remake of such game software shares essentially the same title, fundamental gameplay concepts, and core story elements of the original game, although some aspects of the original game may have been changed for the remake.
Remakes are often made by the original developer or copyright holder, and sometimes by the fan community. If created by the community, video game remakes are sometimes also called fangames and can be seen as part of the retro gaming phenomenon.
A remake offers a newer interpretation of an older work, characterized by updated or changed assets. For example, The Legend of Zelda: Ocarina of Time 3D and The Legend of Zelda: Majora's Mask 3D for the Nintendo 3DS are considered remakes of their original versions for the Nintendo 64, and not a remaster or a port, since there are new character models and texture packs. The Legend of Zelda: Wind Waker HD for Wii U would be considered a remaster, since it retains the same, albeit updated upscaled aesthetics of the original.
A remake typically maintains the same story, genre, and fundamental gameplay ideas of the original work. The intent of a remake is usually to take an older game that has become outdated and update it for a new platform and audience. A remake will not necessarily preserve the original gameplay especially if it is dated, instead remaking the gameplay to conform to the conventions of contemporary games or later titles in the same series in order to make a game marketable to a new audience.
For example, for Sierra's 1991 remake of Space Quest, the developers used the engine, point-and-click interface, and graphical style of Space Quest IV: Roger Wilco and The Time Rippers, replacing the original graphics and text parser interface of the original. However, other elements, like the narrative, puzzles and sets, were largely preserved.