The Philips CD-i is a failed system, best remembered for its weird connections to far more successful ones.
Here's how the story goes: Nintendo wanted to make a CD-ROM drive for the SNES to face Sega's upcoming Mega-CD. They had a deal with Sony, realized it was a bad deal, and jumped ship to Philips (which kinda makes sense, as Sony and Philips had invented the CD together). Sony was pissed and decided to make their own console with blackjack and hookers, and so the PlayStation was born. Meanwhile, Nintendo got cold feet again, the new deal went nowhere as well, so Philips also decided to do their own thing, and that was the CD-i.
There is just one problem with this story: Philips actually had been working on the CD-i long before the SNES existed. It was not even supposed to be a console, but an "interactive multimedia CD player" for educational titles, digital encyclopedias, museum tour kiosks, this sort of boring crap (that's why the original controller was more like a TV remote than a gamepad). The brief almost-partnership with Nintendo just convinced Philips to sell it as a game console, and it also explains how they got the rights to produce the worst Zelda games ever made.
Similarly to the 3DO, Philips also licensed the CD-i standard to other hardware manufacturers.
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|150px||Mutant Rampage: BodySlam||Beat 'em up||A competent, well-made brawler.|