The milestone was reached in 15 months, according to data from retail monitors the NPD Group and GfK Chart-Track, combined with internal estimates from Activision.
The publisher also said more than 100 million Skylanders toys have been sold at retail through January 2013, with combined sales of toys for both games surpassing those of action figure lines including Star Wars and Transformers last year.
“The Skylanders franchise became the first kids’ videogame IP to cross the $1 billion mark in just 15 months, and I think we are still just starting to realize its potential,” said Eric Hirshberg, CEO of Activision Publishing. “We knew that the simple, but magical idea, of bringing your toys to life in a video game could change both the video game and the toy industries, and more importantly, change the way kids play."
Last week Activision announced Skylanders: Swap Force, the next instalment in the franchise. Set for release this fall on home consoles and handheld platforms, it will boast a new story and let kids customise their own characters.
For more on the game, check out the first Skylanders Swap Force trailer and read our Skylanders Swap Force preview, in which we said: “Swap Force is the Skylanders game we never knew we wanted. Mixing and matching multiple characters to create wholly new characters is an exciting prospect, and we're curious to see what kind of interesting combinations will be available. We just hope our wallets can withstand the process of discovering our favorite combos.”