Fortnite-maker Epic Games is taking legal action against Google after being banned from the Google Play app store, hours after doing the same with Apple.
Apple and Google both removed the hit game from their app stores after Epic Games bypassed their payment systems, to avoid giving them a cut of sales.
Both platforms take a standard 30% of purchases on their app stores.
Google said it runs an "open" system and would work to bring Fortnite back to its official app store.
On Android phones, app stores other than Google Play are available, so it it still possible to install Fortnite from Epic Games' own launcher app and the Samsung Galaxy app store, making it less restrictive than Apple's system.
What happened?
Fortnite's latest update offered all players a 20% discount on its in-game currency V-bucks - but only if they paid Epic Games directly rather than using Apple or Google's payment systems.
This broke rules applied by both stores.
On Thursday, Apple removed Fortnite from its App Store, leaving new players with no way to install the game.
Epic Games had clearly expected that to happen, quickly publishing a video mocking Apple's famous 1984-themed television advert about fighting a police state. It published court documents almost immediately.
Hours later, the app also vanished from the Google Play store.
Compared with the high-profile publicity blitz it had prepared to ridicule Apple and mobilise support, Epic has been quiet about Google.
Officially, Fortnite has only tweeted that the app is unavailable on Google Play and "more information will be forthcoming soon".
What is in the court case?
Documents available through the US court records system show that Epic Games has filed a complaint against Google in a California court, just as it did against Apple.
Much of the complaint is about the compulsory 30% cut Google takes from sales in the Play store, similar to Apple.
The document highlights that Google's motto was once "don't be evil".
"Google has relegated its motto to nearly an afterthought, and is using its size to do evil upon competitors, innovators, customers, and users in a slew of markets it has grown to monopolise," it says.
It describes a deal that Epic Games had reached with phone-maker OnePlus to make its games available "seamlessly" on their devices.
"But Google forced OnePlus to renege on the deal, citing Google's 'particular concern' about Epic having the ability to install and update mobile games while 'bypassing the Google Play Store'," it said.
It said LG had also revealed its contracts with Google prevented it from adding Epic Games software to its devices.
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