User blog comment:Supersonic91/World Without Nintendo/@comment-1593341-20100319155630

It depends on when Nintendo goes under. I think the likely point would be with the N64. Cartridge limitations pushing development onto the Playstation and Saturn. Then Sega insists on more successful anti-piracy measures for the dreamcast as well as a last minute replacement of the CD drive with a DVD drive resulting in that system not failing. The failure of the N64 results in Nintendo scaling back into a publisher, and with bad blood between them and Sony, they begin releasing their games for the Sega system, resulting in a big push for Sega. With Sega's core audience focus, and Nintendo's casual audience focus, Sega becomes top tog for the PS2/Dreamcast generation. This generation works out pretty similar, though whether Sega or Microsoft would end up on top is the question. Sega's current gen system would likely focus on gaming rather than being a multimedia hub like the PS3 and be very similar to the Xbox360, so the ups and downs of the PS3 would likely depend on whether or not it gets some Nintendo love.