Rhythm games like
Rock Band and
Guitar Hero had been widely popular during 2005 to 2008, but due to oversaturation of the market and the onset of the
2009 recession, the
rhythm genre suffered major setbacks, and the genre's popularity had quickly waned. Harmonix had released
Rock Band 3 in 2010, and while well received by critics and fans, had only an estimated one million retail sales, lagging behind its dancing game,
Dance Central, released during the same period. Harmonix would continue to support
Rock Band 3 through 2013 with additional content patches and over 280 consecutive weeks of new songs provided as downloadable content (DLC), as well as producing
Rock Band Blitz, an arcade-like rhythm game that did not require instrument controllers, but used existing music libraries. In April 2013, Harmonix released its last regular DLC, stating that they were focusing on other projects. The company noted that they would look to reintroduce
Rock Band in the future, when they felt the time was right to bring back the game. Development of
Rock Band 4 began in the last quarter of 2014. This followed from several factors. Harmonix's former CEO and current creative director
Alex Rigopulos explained that the studio had awaited both a "critical mass" of adoption for the next-generation consoles, and a "clear and compelling creative vision" for the game before beginning work on a successor—prompting the franchise's hiatus. A clear vision of the goals for the game came about more than a year prior to the game's release. Funding for development was aided by $15 million in investments from
Spark Capital and
Foundry Group, not only to support
Rock Band 4 but the remake of Harmonix'
Amplitude and future projects involving
virtual reality. Following the aggressive focus on musical instruction within
Rock Band 3,
Rock Band 4 instead puts a larger focus on the franchise's core gameplay, multiplayer, and the overall feeling of the experience; Rigopulos felt that the franchise had become too "sprawling" in functionality, and that "there is an existing gameplay core that is very powerful and very fun, and we don't want to tamper with that core. At the same time, we need to bring something new to the experience." The new Freestyle Guitar Solo feature was something that Harmonix had built a prototype for in early 2014; at the time they did not have a clear concept of its use but found the mechanic to have potential and built up parts of
Rock Band 4 around it. Rigopulos also noted that they were not trying to develop
Rock Band 4 with competition from
Guitar Hero Live in mind; that competition had caused the original over-saturation of the rhythm game market in 2009. With
Rock Band 4, Harmonix' goal is a smaller but known fraction of the market of both old
Rock Band players and new ones, such that meeting those numbers would make the game financially viable even if it does not outsell
Guitar Hero Live. This goal also helps to manage the costs of the game as they do not have to manufacture as many instrument sets as they had done previously. Sussman stated that either platform could be possible in the future if there is market demand, but their present focus was the safest route to bringing
Rock Band to mass market through the major console platforms. On January 13, 2015, Harmonix announced three new DLC songs, the first in nearly 21 months. The sudden release, along with a survey posted by Harmonix a few days later, indicated the possibility that the studio was planning to develop a new
Rock Band game for
eighth generation consoles. On March 5, 2015, Harmonix officially announced
Rock Band 4.
Rock Band 4 is expected to be the only retail release of the franchise for the current generation of consoles; In March 2016, Harmonix launched a
crowd funding campaign through the
Fig platform to produce
Rock Band 4 for personal computers, to have been released in the last quarter of 2016. Harmonix estimated the game would cost $2 million to make, of which they would contribute $500,000 towards if they can raise the remaining $1.5 million. The port would have been primarily handled by
Sumo Digital, integrating the updates that Harmonix will continue to provide in the main game. The game would have been released via
Steam, allowing users to use the Steam Workshop to create their own songs and distribute it to others, with curation by Harmonix to avoid copyright infringements, in a manner comparable to the
Rock Band Network but at a lower cost; they have already ported the previous Rock Band Network tools to offer to backers of the campaign. Harmonix planned to allow compatibility with all existing instrument controllers from the various PlayStation 2, 3 and 4, and Xbox 360 and One platforms, and had begun working through details with Sony and Microsoft. The game would have shipped with the same 65 songs as the console version, and at least 1700 songs for downloadable content (all those currently available for
Rock Band 4 on consoles), though, as with the console versions, users would have had to repurchase these songs on the PC and cannot transfer over songs they already own on either platform. The funding campaign failed to reach its goal, only obtaining about $793,000 of the $1.5M target; Harmonix has not ruled out approaching a personal computer version in the future as they are aware there is some demand for
Rock Band there. Harmonix affirmed that with the
backward compatibility of both the
Xbox Series X and S and
PlayStation 5 consoles released in November 2020, that
Rock Band 4 are playable on the new consoles with most of the officially-supported instruments that worked on Xbox One and PlayStation 4, and that players are able to bring over all downloadable content they had purchased to the new consoles. Further, players within the same console family (PlayStation 4 and PlayStation 5, for example) will be able to use the online multiplayer features together. Harmonix plans to continue to support the game with further DLC after the new console's launch. Following the acquisition of Harmonix by
Epic Games in 2021, they confirmed that support for
Rock Band 4 (including future downloadable content) would be unaffected by the acquisition. On December 14, 2022, Epic announced that they would shutdown the "out-of-date" online services for numerous older games (including all older
Rock Band games) due to the company's focus on Epic Online Services. While
Rock Band 4 was unaffected by this move, it was instead updated to add Epic Online Services (including a requirement for an Epic Games account in order to access the game's online features) to the game's online services. With Harmonix transitioning to work on the
Fortnite Festival mode within
Fortnite, which shares many similarities in gameplay as with
Rock Band 4, the developers will no longer offer new DLC for
Rock Band 4 after January 25, 2024, though the game's online services and Rivals seasons will continue for the foreseeable future.
Hardware First generation At launch,
Mad Catz handled the global production, sales, and promotion of the retail game, while Harmonix handled the digital content and sales. Mad Catz developed updated guitar and drum controllers for
Rock Band 4; the company noted that while it did not want to "reinvent the wheel", the controllers still featured technical improvements, such as reduced wireless
latency and a more sensitive tilt sensor on the guitar. The microphone had also been redesigned, and is able to sample at a higher rate to help with the vocal improvisation sections. At
PAX East, a special
Penny Arcade-themed guitar with artwork of
Gabe was made available as a limited edition exclusive. On Xbox One, standalone copies of
Rock Band 4 are bundled with a "Legacy Adapter" to allow use of wireless Xbox 360 instrument controllers, including those developed to support
Guitar Hero games. Due to the inclusion of this hardware, the retail price of
Rock Band 4 on Xbox One was higher than the PS4 version. The Adapter was developed by Mad Catz by experimenting with all legacy Xbox 360 controllers they wanted to support and verifying what inputs they sent via wireless connection. They also worked with a former Microsoft employee that had experience with the Xbox 360's wireless features for additional insight. In June 2016, Harmonix announced they had signed an extension with their deal with
Fender to continue use the name and branding within the
Rock Band series through 2027, and that new peripheral hardware based on Fender's instruments would be available soon. During
E3 2016, PDP and Harmonix unveiled new hardware that was released alongside the
Rock Band Rivals expansion. A new
guitar controller based on the
Fender Jaguar features improvements to the strum bar and tilt sensor, while its neck can fold down for easier storage. An optional rechargeable battery pack and charging stand for the Jaguar controller was also unveiled. A new full band bundle featuring
Rock Band 4 and the
Rivals expansion, a Jaguar guitar and a drumkit shipped alongside the digital release of the
Rivals expansion in late 2016. With the PDP-supplied instruments, Harmonix will be able to offer the instrument-and-game bundles at lower cost than on the game's initial release; for example, the game and guitar bundle on release initially had a MSRP of $120, but the new bundle will be priced at $90. While part of this reduction in cost is attributed to the age of the game, Sussman stated that several factors relating to PDP's manufacturing and business models allows them to offer the packages at a more competitive price point. PDP had also offered a wired legacy adapter for use with wired instruments (such as first-generation
Rock Band hardware and the Ion Drum Rocker) and the
Rock Band 3 MIDI-Pro Adapter. However, following its initial shipment in November 2016, PDP affirmed that their terms of licensing with Harmonix only allowed them to produce a limited number of the units, less than the demand that was found for the device.
Third generation In January 2024, PDP unveiled the Riffmaster wireless guitar, which is designed for compatibility with
Rock Band 4 and the Harmonix-developed
Fortnite Festival; it uses an ambidextrous design with a folding neck, and adds a headphone jack and a swappable
pickguard. A year later, in February 2025, CRKD would unveil their own Gibson Les Paul wireless guitars, also designed for compatibility for
Rock Band 4 and
Fortnite Festival, with the premium Pro Edition controller featuring new mechanical frets, a strum bar with
haptic feedback, and strum and whammy bars using
hall effect sensors. With most of its ten-year licenses expiring,
Rock Band 4 and some DLC are to be delisted from the console storefronts on October 5, 2025, though can continue to be downloaded and played for those that have already purchased the game. == Soundtrack ==