Guitar Hero
In 2015, Activision announced the first new title to the series in 5 years, "Guitar Hero Live", released in October 2015. The title is considered a reboot of the series, with development being performed by FreeStyleGames, who had developed the "DJ Hero" games previously. As of December 1, 2018, Activision disabled the GHTV servers for Guitar Hero Live, reducing playable content from approximately 500 songs to 42 on disc tracks.
Guitar Hero
Gibson Guitar Corporation, whose guitar likenesses have appeared in the "Guitar Hero" series from the first game to "Guitar Hero Aerosmith", informed Activision on January 7, 2008, that it believed the games infringe its . Gibson claimed that this covers technology that simulates a concert performance via pre-recorded audio and a musical instrument. In response, Activision filed a suit seeking a declaration that it was not in violation of the Gibson patent; Activision also asserted that Gibson had given an implied license by waiting to assert the patent and that the patent was invalid. On March 17, 2008, Gibson sued six retailers (GameStop, Amazon.com, Wal-Mart, Target, Toys "R" Us and Kmart) for selling "Guitar Hero" products. Subsequently, on March 21, 2008, Gibson also filed a lawsuit against EA, MTV, and Harmonix over their game "Rock Band" also for violation of its patent, to which a Harmonix spokesperson stated that Gibson's claims are "completely without merit". Activision lawyer Mary Tuck stated in their legal filings that they believe that Gibson initiated the lawsuit due to the fact that "Activision was not [interested] in renewing the License and Marketing Support Agreement" with Gibson Guitars.
In February 2009, the United States District Court for the Central District of California ruled against Gibson in their case against Activision, stating that the controllers are not musical instruments but "toys that represent other items", and that Gibson's patent only covers instruments that send out analog signals. Activision and Gibson settled the suit following this ruling.