Spyro’s Kingdom is a cancelled game in the Spyro Series, which was developed, then scrapped, then redeveloped, then scrapped, but became Skylanders. Version 1 was developed by Helios Interactive and was to be exclusive to PC and Nintendo Wii. This version got cancelled, however, it was revived later by Toys 4 Bob with version 2, which introduced the portal of power and skylander figures, then called “Kingdom Heros”. Later it was redone again and finally released as Skylanders.
Spyro's Kingdom Prototype Trailer
This version is highly similar to Skylanders, even including portals and figures, however, this version did not require the figures or portal to play, and it had online play. Activision liked the concept and decided to go with it, later they had Toys 4 Bob remove the online play and make the figures and portal required. The version 2 was going to be Nintendo Wii Exclusive. However when word of this got out to fans, there was backlash and the fans on several forums expressed hate and did death threats. Later they announced it would also launch on Xbox 360 and Playstation 3 as well.