With Unity CEO John Riccitiello pointing to the company's heavy investmentin supporting virtual reality game development at its Unite 2015 Boston conference, arch rival Epic Games is also making its presence felt in the sector.

Learning tools

It's started a video series, called Sense of Presence, to explain how to make virtual reality experiences for developers interested in getting involved in the market.

The latest video, which includes interviews with the likes of Oculus' Palmer Luckey, is entitled Building Virtual Reality.