Speaking to IGN at QuakeCon 2018, developer Avalanche Studios explained that they were the primary developer on Rage 2, the sequel developed in collaboration with id Software.
“We at Avalanche are making the game,” said Avalanche game Director Magnus Nedfors. He told me that id has been working closely with them on the creative level “since day one,” but that “we have written the code, we have made the art and that stuff — that part of development is made in Stockholm by Avalanche.”
“It’s a close collaboration still with the people at id, learning from them when it comes to the shooting and so on,” Nedfors said. That influence is clear, as the guns and the pace of Rage 2 feel very similar to Doom. “They’ve taught us a lot about the id-style of combat,” he explained, saying id studio director Tim Willits wanted to make sure that Rage 2’s shooting still felt like an id game.