Gearbox co-founder Landon Montgomery has sadly passed away.
The industry legend - who worked on the 'Half-Life' and 'Brothers in Arms' series as well as '007 Nightfire', 'Borderlands' and 'Tony Hawk's Pro Skater 3' - had a profound influence on the gaming world, and he founded the company alongside Randy Pitchford, Brian Martel, Stephen Bahl and Rob Heironimus back in 1999.
In a statement shared on social media, the studio said: "We are heartbroken after learning today of the passing of one of our co-founders, Landon Montgomery.
"In our earliest years, Landon played a big role in helping to set our path.
"We will always be thankful and remember him for being a part of our lives.
"During this trying time, our thoughts, support, and affection are with those who were closest to him."
Although Montomery left the company 13 years ago, current CEO Randy Pitchford shared his own memories of the late developer and his work.
He wrote: "I remember when Landon stayed up with me until 3 in the morning to help animate the loader robot from Half-Life for this puzzle I designed for Opposing Force - just to get it in before we closed the build for that milestone.
"I remember when Landon would come over to my house where Rob and @Kristige and I were living together and working on the design document for Half-Life Opposing Force - Landon did a lot of the concept art in the document for us."
He later added: "Sorry for unloading some fond memories... such a shock. I still need to process it all.
"He left Gearbox in 2007, I think, and I only saw him a couple of times over the last decade or so... I cannot imagine how those closest to him more recently are managing the news."