Invade-a-Load was a fast loader routine used in software for Commodore 64 computer. It was used in commercial computer games that were stored on Compact Cassette tape and loaded using the Datassette. Invade-a-Load contained a notable feature other than its fast loading routines: While the actual game was loading—a process which usually took a long time, even with optimized loader routines—the loader allowed the user to play a smaller game to pass time. The game was a clone of the famous Space Invaders game. The minigame was loaded in under a minute, providing entertainment while waiting for the actual game to load which could take a further five to ten minutes.