Fig. 2
From: Leveling up fun: learning progress, expectations, and success influence enjoyment in video games
Rating behavior in game data sets. (a) People’s ratings of different levels of Robozzle. (b) People’s ratings of different levels of Trackmania. (c) People’s ratings of different levels of Super Mario Maker. The orange part indicates that players also liked simple levels, on top of levels with intermediate difficulty. (d) People’s ratings of levels in relation to their expectations of difficulty and our difficulty calculation (success ratio). We plot the difference between the difficulty calculation — based on attempts and clears of the levels — and expected difficulty — given by categories assigned by the creators — in Super Mario Maker. Error bars indicate the standard error of the mean.
