Space Marine 2 has been a great success for developer Saber Interactive, but the company's chief creative officer says losing focus on "what actually makes the game fun" may be part of why other AAA developers sometimes miss the mark with their own releases.

Space Marines 2' continues to impress while other AAA games disappoint, Saber Interactive CCO Tim Willits has explained the title is successful because it adheres to the franchise's "core pillars" of gameplay.

The list of big budget video game failures is growing longer each month, with triple-A publishers struggling to make a dent in the dominance of older, more established players in this most brutal of markets.