Epic engine GM Ray Davis has said that the studio's long-awaited game Fortnite has 'evolved' since its unveiling over two years ago.
"I would say it has evolved. Like all game development, it's a long, long road and lots of things are discovered along the way," Davis told RPS.
"With Fortnite, the way I look at it is we think there's a big opportunity, and the last thing you want to do is rush something before it's really found its core," he added.
"The team's been working really hard. I think they've made some tremendous progress. Hopefully we'll be able to talk about it more soon. I can say that it's a tremendous amount of fun to playtest."
In April 2013, Epic Games VP Mark Rein told CVG that Fortnite - first unveiled in December 2011 and rarely seen since - "might be the best thing we've ever done".
The PC exclusive is described as "a co-op sandbox survival game" that has players scavenging for resources to build fortifications as they battle for survival against hordes of monsters.
Rein said Epic would take its time with Fortnite before showcasing the title via "a very slow rollout" followed by hands-on time with "a few hundred people".