LONDON, ONTARIO—Within the first 24 hours of the new Overwatch game mode’s release, Digital Extremes’ lawyers took quick action against Blizzard Entertainment after the unveiling of the new game mode for Overwatch: Lúcioball. This new game mode, featured in the “Welcome to the Summer Games” update, allegedly infringes on the intellectual property rights from Warframe‘s Lunaro game mode. Digital Extremes claims that the “Lúcioball” game mode “is totally a ripoff of our super original Lunaro thing.”

No court date has been set at this time and details are scarce on the matter and all signs point to an out of court settlement in the works. Fans of both games have seen other similarities between the two games in the past as homage or coincidence as is common in the industry, though usually it is limited to cosmetic or vanity-related elements. Lunaro was added to Warframe on June 15, 2016, several months prior to the release of Lúcioball and both games feature balls, goalposts, movable characters equipped with weapons, and simulated physics.

Steve Sinclair, Warframe’s Creative Director, tweeted out the following last night:

“They borrowed Excalibur for Genji, we gazed into the iris for Asuri Nova. It was fine. Lucioball broke the unspoken agreement.”

Critics have claimed that both Digital Extremes and Blizzard Entertainment have been heavily influenced by Psyonix’s recent success with Rocket League and that any court ruling would open the flood gates of frivolous lawsuits. Psyonix has not officially responded in any capacity to either of these two titles in what is assumed to be an attempt to avoid controversy after lawsuits over Supersonic Acrobatic Rocket-Powered Battle-Cars with FIFA, half a dozen RC Car manufacturers, and the NRPA.

Blizzard Entertainment declined to comment on the topic and instead took the opportunity to further promote Overwatch‘s Summer Games which will only be available until August 22.