On June 5, Vicki Shalbot, a campaigner for children and families’ digital rights, filed a £656 million (roughly $834 million) lawsuit against Valve for anti-competitive behavior and excessive prices.

As reported by VGC, they accused Valve of making publishers sign a contract that dictates the lowest price they’re allowed to sell games for on rival platforms. In other words, if a game is on Steam and at least one other PC platform, Steam allegedly always gets the best deal during sales.