User:TheJoebro64/drafts/Lost

A lost video game is a video game that is no longer known to exist in any studio archives, private collections, or public archives.

Examples
Much of the Satellaview library is considered lost, as its titles were broadcast via satellite in real time and were downloaded onto rewritable cartridges that could only contain a single game's data.

Rediscovered games
It is not unheard of for games that were previously considered lost to be rediscovered. A notable example is SegaSonic Bros., a Sonic the Hedgehog-themed falling block puzzle game designed by Bubble Bobble creator Fukio Mitsuji. The game failed Japanese location tests in 1992, so it was not widely released and considered lost for many years. However, a working cabinet was discovered in 2016, and the ROM image was released online in 2018.