PlayerUnknown's Battleground has been one of the most surprising games this year so far. It has now sold 10 million copies worldwide, an impressive accomplishment for a game still in Early Access on Steam.

PlayerUnknown announced the milestone on Twitter. "Never did I think we would reach such a number!" he said in the post. He also thanked everyone for continuing to support the Hunger Games-like multiplayer online game.

The fact that Battlegrounds reached 10 million sales within six months is even more impressive. After launching in March, it has turned into one of the most popular games in the world. At one point last month, it even temporarily beat Dota 2 for the most number of concurrent players. Not an easy thing to do against Dota 2, an absolute powerhouse in the online gaming scene.

Battlegrounds is also set to launch on Xbox One later this year, which should boost the already impressive sales numbers even further. Microsoft will handle publishing duties for the console version. A PS4 version is also expected sometime in the future, though developer Bluehole has yet to make any official announcements regarding it.

Both Microsoft and Bluehole have refused to give any definitive comments on the PS4 version, leading to the speculation that Battlegrounds will simply be a timed exclusive on the Xbox One similar to Rise of the Tomb Raider. If Microsoft has secured the rights to a real exclusive console version, no doubt the company would have wasted no time telling everyone about it.

There is no telling how high the sales numbers would go once Battlegrounds is available on both PS4 and Xbox One. Hopefully, Bluehole does a great job at porting the game to consoles.

In Battlegrounds, up to 100 players fight in a battle royale match. In every match, players start with nothing but clothing and must scavenge for weapons and resources around the map. Players can play as a lone wolf or as part of a team (maximum of four players). The last man or team standing wins the match.