Since that point, would-be assassins and wannabe snipers in the imaginatively named Central City have installed the 3D shooter over 5 million times.
Even without a PhD in Maths, Contract Killer’s sales tally seems particularly impressive, reflected in its position on the UK App Store’s Top 25 Free and Top 50 Grossing charts.
"We had high expectations for Contract Killer and are thrilled with the breakout success of the title," Giancarlo Mori, Glu's CCO, said.
"Throughout the development of the game, we were meticulous with every detail, making sure the visuals, 3D graphics, and gameplay were outstanding. We could not be more pleased with the positive response to the game."
Contract Killer isn’t the first highly Qi rated free-to-play iOS title from Glu to notch up significant numbers on Apple’s storefront, incidentally.
Scope out Contract Killer on the App Store now for free.
View the Contract Killer video below...