How can we help? Towards a design framework forperformance-accommodation mechanisms for users struggling with input

Maintaining balance between challenge and skills in games is critical for enjoyment, and can be applied to accommodate player performance as well as system performance for low accuracy input devices. Previous work has explored different performance-accommodation mechanisms (PAMs) for balancing, but studies have focused mainly on variables not directly related to how the PAMs lower challenge level. This paper identifies different levels of PAMs, then offers a first attempt at a coherent framework of action-level PAMs based on how they modify the mapping from player input to output.