Escher-inspired mobile puzzler Monument Valley has made developer Ustwo a lot of money since it landed in April 2014.
Last year, the studio revealed the premium game had brought in over $5.8 million in revenue in its first 12 months, and one year on, that figure has more than doubled.
According to a new infographic released by Ustwo, Monument Valley's lifetime revenue now stands at $14.38 million dollars, and is the result of 26.1 million downloads, and 50 million unique installs.
It's interesting to note that 21 million of those downloads were free -- meaning only around 5 million players, roughly 20 percent, actually paid for the game.
Unsurprisingly, given it was only available on Apple devices for the first seven months, 73 percent of that $14 million figure was attributed to iOS sales.
Google Play purchases, on the other hand, pulled in 17 percent, while Amazon and Windows sales accounted for a mere 3 percent and 1 percent of total revenue.
Ustwo's polarising expansion, Forgotten Shores, has been downloaded 2.37 million times, despite coming under fire for being a paid add-on.
At the time, Ustwo director Neil McFarland defended the studio's decision to release premium content in a short exchange with Gamasutra.
"I think right now we're in a period of market re-alignment in the wake of the success of free-to-play," said McFarland. "We're seeing the completely necessary move in the opposite direction from selling apps for only 99 cents to a more 'premium' price."
For more information on Monument Valley's two-year performance, check out the complete infographic on Medium.
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