Rocksteady Studios boss Sefton Hill has said that their first game Batman: Arkham Asylum, which released to critical appraise, won’t be the best of them if they have anything to say about it.

“As we were designing Arkham, our confidence as a studio had begun to grow,” Hill told Develop. “After the release it grew even further. Now I’m really excited, because, as a developer, I look at our team and I don’t think the studio has hit its peak. I still think we have places to go.

“I’ve seen us grow as a company – and I mean in terms of confidence and ability – and I genuinely can see us grow further still. I don’t think Arkham Asylum is going to be the best game we make. We’re growing and developing as a company all the time.”

Arkham Asylum‘s review scores only boosted the team’s confidence.

“That was true in Arkham; the boldest decisions we made were the ones that paid off the biggest. So, in a sense those review scores are important because they end up justifying those risks.”

Rocksteady’s currently hard at work developing the sequel, Batman: Arkham City. It’s due out on PS3 and Xbox 360 in fall 2011.