Tactical destruction and depth: Bringing Rainbow Six’s magic to mobile

Few games manage to strike so big that an entire subgenre is born out of their success. When Tom Clancy’s Rainbow Six series first launched in 1998, it established how to make a tactical shooter. However, it wasn’t until 2015’s Rainbow Six Siege that Ubisoft’s franchise became the blueprint for an entire genre.

With Rainbow Six Mobile, Ubisoft is looking to bring everything it’s learnt from Siege to transform how tactical shooters play on mobile.

“Bringing a AAA tactical shooter to mobile is no longer about compromise,” explains Maggy Larouche, Lead Producer on Rainbow Six Mobile at Ubisoft Montréal. “The market has evolved, and there’s a clear appetite for a hardcore experience like Rainbow Six on mobile.”

For Larouche, this didn’t mean just making a straight mobile port of Rainbow Six Siege. “We treated Rainbow Six Mobile as a mobile-first project, not a port.” As part of Ubisoft’s overall vision, they knew they had to build something native to mobile play. “We knew we were speaking to players who are shooter fans first, and often mobile-first as well.”

This doesn’t mean you won’t find any of Siege’s DNA in R6M – its core pillars of tactical asymmetry with attacker and defender roles, environmental destruction, and vertical play, were all “non-negotiable”. According to Larouche, “those elements are what make Rainbow Six fundamentally different from other shooters.” For it to maintain the series’ signature depth and tension, “they had to remain intact on mobile.”

Larouche and her team also knew they couldn’t just deliver these features – they also needed to have the smoothness and level of performance fans expect from the series and for competitive play. “We invested heavily in network code and rendering optimization to deliver stable frame rates, reduced input lag, and far fewer disconnects.”

Still, the team knew that R6M had to do more than just retain the core of Siege to be a success. “Touch input is inherently less precise than a mouse and keyboard,” Larouche acknowledges. “So we combined what we’ve learned from mobile shooters with Siege’s depth to create an experience that feels authentic, competitive, and truly native to mobile.”

While not a port of Siege, R6M did still need to have some familiarity to draw fans in. Therefore, it was crucial to include some of the franchise’s most iconic maps. “We brought over iconic, esports-grade maps and reworked them for mobile,” Larouche explained.

This meant improving readability and flow without disrupting the tactical depth that fans love. “Smaller, more focused layouts lead to more dynamic combat, fewer players getting lost, and a smoother flow overall.”

It isn’t all returning maps either, as two new locations – Summit and Restaurant – have been added exclusively for mobile. Summit offers high verticality with its snow-capped mountains, while Restaurant's izakaya is the perfect backdrop for close-quarters combat with its tight corners and obstructed sight lines.

Likewise, environmental optimization and destruction – the DNA of Rainbow Six – aren’t going anywhere, “Destruction is at the core of Rainbow Six, so we knew it couldn’t be a visual shortcut or a pre-baked effect.” But it was no easy feat, especially on mobile where GPUs don’t have the grunt of a PC or console.

“Destruction is very demanding,” Larouche stated. “We had to be extremely careful about performance and power usage. We built custom destruction implementations which allowed us to deliver the same experience on both low- and high-end hardware.”

It’s something Larouche is especially proud of having achieved on mobile. “Opening new angles, creating unexpected lines of sight, and reshaping the environment mid-round still feels incredibly satisfying.”