Your product could be banned, but the sue-er would never collect any money. So, if the sue-er is a patent troll, why would they bother? They don't care about banning competition. They'd burn a lot of money on lawyers for zero income. That's not a fight that they want to pick.
Their gain would be a chance that you pay the fees. Because outside of specific local markets, no small game producer could afford dropping the US market (and possibly US-based delivery systems like Steam, Play, and AppStore) and succeed.