This is a technological alternative history. In this althist, Ken Kuturagi convinces Norio Ohga to agree on the 80:20 split between Nintendo and Sony over the SNES' CD port. When the SNES is released in North America with a CD Port, it dominates the console market. This in turn leads to a partnership between Sony and Nintendo in the video game industry.


Fourth Generation

Name PC-Engine (TurboGrafx-16) Mega Drive (Genesis) Super Famicom (Super Nintendo Entertainment System CD) Neo Geo AES
Manufacturer NEC & Hudson Soft Sega Nintendo & Sony (US only) SNK
Launch prices (USD) US$249.99 US$190.00 US$249.99 US$649.99 (Gold version)

US$399.99 (Silver version)

Release date Japan: October 30, 1987
North America: September 1, 1989
Japan: October 29, 1988 North America: September 15, 1989 Japan: November 21, 1990
North America: August 23, 1991
Japan: July 1, 1991
North America: 1991
Media HuCard (card-shaped cartridge)

CD-ROM (Turbo CD add-on)


CD-ROM (Mega-CD add-on)
Data card (Power Base Converter add-on)


Magnetic disc (Japan)
CD-ROM (North America)


Data card (Europe & Japan)

Best selling games Bonk's Adventure Sonic the Hedgehog, 15 million Super Mario CD, 20 million Samurai Shodown
Backward compatibility None Sega Master System (using Power Base Converter) Game Boy (using Super Game Boy) None
Accessories (retail)
  • TurboGrafx-CD
  • TurboTap
  • TurboStick
  • Super System Card
  • TurboBooster
  • TurboBooster Plus
  • Sega Mega-CD
  • Sega 32X
  • Mouse (computing)|Mouse
  • Menacer
  • Power Base Converter
  • Sega Activator
  • Multitap
  • Super Scope
  • Multitap
  • Super Game Boy
  • SNES Mouse
  • Super Advantage
  • Neo Geo Controller Pro
  • Neo Geo Memory Card
CPU HuC6280A (modified 65SC02)
1.79 or 7.16 MHz
Motorola 68000
7.67 MHz (7.61 MHz PAL)
Zilog Z80
3.58 MHz
Nintendo-custom 5A22
(based on 65C816)
3.58 MHz (3.55 MHz PAL)
Motorola 68000
12 MHz
Zilog Z80
4 MHz
Memory 8 KiB work RAM
64 KiB video RAM
64 KiB main RAM
64 KiB video RAM
8 KiB audio RAM
128 KiB main RAM
64 KiB video RAM
64 KiB audio RAM
64 KiB main RAM
74 KiB video RAM
2 KiB audio RAM

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.