But Trakonius, a roman gladiator-inspired action-roguelike, achieves an impressive feat. The developer says there are up to ...

They've been able to take advantage of the behaviour tree system that comes out of the box with Unreal 4. "We have to do a lot of work on simulating a lake full of fish," said O'Farrell.

Unreal Engine 4's robust AI system made the job of developer Holospark a lot easier than it would have been otherwise. Earthfall needed to simulate alien behaviour but also that of your companions.