Gree Sues Supercell for Patent Infringement Over ‘Clash Royale’

The makers of the popular mobile strategy game “Clash Royale” infringe a patent owned by Japanese social media software company Gree Inc., according to a complaint filed in Texas federal court.

The complaint says Supercell Oy infringes U.S. Patent No. 10,518,177, covering a system for dividing group battles into time slots with different battle conditions to accommodate players of different skill levels.

The patent allows new players to better enjoy games by letting developers set battle conditions in multiplayer games to, for example, “increase the attack strength of low-level characters,” and “favor beginners in the first half in which ...