Eight million people have joined the Warframe playerbase since November.

That's according to developer Digital Extremes, who has revealed that the free-to-play sci-fi title has been played by more than 38m people over the last five years. To be precise, the studio reports 38,083,936 players.

That's up from the 30m announced in November, when Digital Extremes rolled out the Plains of Eidolon expansion pack.

There's no word on on how this breaks down for each platform - the 38m figure being a cumulative one that counts the PS4, Xbox One and PC userbase - but SteamSpy reports almost 14m players on PC. Furthermore, almost one million people have played in the last fortnight.

"Can it really be five years? When we started Warframe it was a 750MB install with one level," creative director Steve Sinclair said.

"We had no expectations it would endure even half as long. But you, our Tenno, showed up and guided us and gave us hell! With your support we've continued to grow and experiment and with your blessing we'll continue to do just that. There is still so much left to do... together. On behalf of the team here at Digital Extremes, thank you Tenno. See you at Tennocon."

Warframe launched back in March 2013.