Battle royale title Darwin Project has gone free-to-play on PC, just six weeks after it released.

It will do the same on Xbox One after an update this week.

Darwin Project launched into Steam Early Access and Xbox Game Preview on March 9, hoping to distinguish itself in the popular genre by placing an emphasis on tracking, and by allowing viewers to participate in games.

For the latter, a Show Director controls the arena with nuclear bombs, zone closures, and gravity storms, while stream viewers can place bets on who they think will survive, and help the Show Director choose targets for their arena-shaping powers.

The game has a “very positive” rating on Steam, but it seems it is struggling to pull players away from Fortnite and PUBG.

“We’ve been fortunate to have a core community of players join us at a very early stage, with many still supporting us during Early Access, and the last thing we want to do is let those passionate players down,” said creative director Simon Darveau.

“Lately, members of our community have reported longer queue times and difficulty finding matches in lesser populated servers.

“To bring in new players and maintain a level of activity that ensures players are able to get the most out of Darwin Project, we’ve decided to make it more accessible by removing the price tag.”

The game's progression system has been overhauled, and cosmetic items can now be earned by levelling up.

Scavengers Studio has agreed to refund anyone who has paid for the game on Steam, regardless of when they made the purchase.

Those that don’t want a refund will receive a Founder’s Pack containing cosmetic items instead.

Scavengers Studio said it will never sell items that give a competitive advantage.