Open world survival game Conan Exiles sold 320,000 copies in its first week on Steam Early Access, completely recouping all development costs and pulling developer Funcom out of a rut.

The Norwegian studio has been hungry for a hit for some time, with MMOs Age of Conan, The Secret World, and Lego Minifigures Online all failing to meet expectations.

“Funcom has gone through some challenging times in recent years and seeing the game we have poured so much time and effort into gain this amount of traction so quickly is very invigorating for everyone who works here," said Funcom CEO Rui Casais.

"This is just the start of the Early Access adventure and we will do whatever it takes to make sure Conan Exiles turns into a fully-fledged game that has something to offer new and old fans of both Conan and survival games."

According to Steam Spy, sales are now around 360,000.

At launch, Exiles struck server problems due to the higher-than-expected player counts, but new official servers are now being brought online and players, and there are more than 12,000 private player-run servers online.

Those early problems are likely one reason the game currently has a 68% positive review rating on Steam.

An official Conan Exiles dev kit is now available for modders, and the game has Steam Workshop support.

Funcom will reveal the future of the game at this year’s Game Developer Conference, which runs from February 27 to March 3 in San Francisco.