A source spoken to by Kommersant suggests that the lawsuits are merely the beginning of a crackdown on foreign-made online games within Russia, a move which would likely redound at least somewhat to the benefit of homegrown games.

Not much. Russian gamers are mostly technically literate and either pirate their games, Russian or not, or use the roundabout ways to pay for their games abroad. Many also associate Russian games with slop, although that’s not universally true.