Demos
The Amiga was a focal point for the "demo scene". The Amiga thrived on public domain, freeware and other not-for-profit development. The demo scene spearheaded development in multimedia programming techniques for the Amiga, such that it was de rigueur for the latest visual tricks, soundtrackers and 3D algorithms from the demo scene to end up being used in computer game development.
Read more about this topic: Amiga Software