The Czech Republic-based mobile developer Madfinger Games has announced that its latest game Unkilled has hit 3 million downloads within just 10 days of launching.

There are a number of other milestones, too: among this 3 million-strong player base there's been an accumulative total of 1.5 billion zombies killed, 55 million missions completed, and an astonishing 1000 years of playtime.

With some quick number crunching, that means that the average player has clocked nearly 3 hours in Unkilled so far - impressive after only 10 days on the market.

Madfinger has also been keen to highlight its generosity in the context of Unkilled's in-game economy, having dished out 100 million gold coins to player - the equivalent of $1.1 million in real money.

And indeed, in our In-App Inspector entry on the game's monetisation we concluded that Unkilled "neatly ensures the player can enjoy the action whether they spend or not."

Perhaps unsurprisingly given the game's early success, Madfinger has also confirmed that it has new features and updates for Unkilled in the works.

You can download Unkilled for free on the App Store and Google Play.