The creation of ENIAC caused the creation of many worlds including:
- The various Digital Worlds
- Virtual Reality
- Lyoko (prototyped as Xanadu) and its Replikas
- The World
- Sword Art Online and Accel World.
- Video Land
The following universes are related by having alternate versions of each other's Cyberspace.
- The Digimon multiverse
- Mega Man Battle Network and Star Force
- Shadowrun (prior to 2064, anyway)
All digital worlds coexist, but use incompatible operating systems.
- TRON uses Macintosh.
- ReBoot uses Windows.
- Mega Man Battle Network uses Unix.
- All the Digimon universes use the ENIAC's operating system, being directly spawned from it.
Most World of Weirdness and furry webcomics which do not have space travel in them are set in a far-future revision of Second Life.Jossed in the case of DMFA, as that is set in Furcadia...