To help understand what went wrong with the PC version of Batman: Arkham Knight, Kotaku spoke with a quality assurance tester, who claimed publisher Warner Bros knew about the problems for months.
As for the PlayStation 4 and Xbox One versions of Arkham Knight, the tester source, who wished to remain anonymous, talked about why the game was delayed on multiple occasions by Warner Bros and developer Rocksteady:
Getting it to work on consoles was impossible for months. That’s part of why the game got delayed so many times, they were totally unprepared for how hard it was on next-gen consoles.
Another source who was close to the production of Arkham Knight backed this up, saying QA teams were told in various meetings that the new consoles were “not nearly as easy to work with as [Rocksteady] expected.” As a result, testers were told to focus on finding console bugs, with just 10% of the roughly 100 people focused on PC.
The source then discussed how testing went for Arkham Knight:
Testing a game this big is very different from linear or smaller games. You usually get a mission, chapter or area of the map, or pick one yourself, and just go to town. You bug everything you see. We had some testers bugging more than 100 bugs per day. Devs would fix what they could but they were juggling that with actually finishing the game so they were insanely slow. Only when the game was done and no new features had to be built could they actually buckle down. Once that happens they also restrict what you can or can’t bug, to ensure that they can catch up.
While there are lots of issues with the PC version, it launched on PS4 last month “in a very refined, polished state.”
Getting Batman Arkham Knight PS4 Xbox One to Run "Was Impossible for Months," Led to the Delays