TechCrunch:

I’m fascinated by the reviews left by Monument Valley players in the wake of the decision by the game’s developer (ustwo) to price a recent content update at not-free. Ustwo had released the original game at $4 featuring 10 levels. The game was a labor of love and earned many just awards. It also went to sell in excess of 1.4 million copies – a feat that exemplifies how arty mobile gaming can work very well. This latest pack brings 8 new levels to the game and costs a pretty trivial $2. And yet in its wake came a surge of 1-star reviews. But why?

First lesson is people can be cheap and petty.