Technology

The fuck are you talking about? I already gave an example of mindustry being free anywhere but steam. As long as they don't distribute the steam keys for free somewhere else, they are safe. Steam mandates that you put the lowest/price parity for the steam keys you sold outside of steam. If for example a game is being sold on steam priced at $15 with a 30% cut, the publishers are free to distribute the steam keys on their storefront for the same $15 without any cut. OR they could sell it cheaper BUT they cannot sell the steam keys. Maybe other storefront keys/drm. But the problem is, will the publisher sell it for a lower price knowing that they could sell it for the same price across the board with a higher profit margin?

If you wanted to argue that it is steam's fault for taking the 30% cut in the first place so we get where we are now, then I don't know what to tell you anymore. The problem is not steam but greed. Back to my example mindustry, that is a valid strategy to sell it for free everywhere but steam and is perfectly legal. It's just no one wanted to follow that model (instead of free, offer a cheaper price).