How much does Diablo cost? How much did StarCraft 2 cost? Alan wake 2 ? Every Nintendo game? PlayStation or Xbox console exclusives?

I don't know. Do you want me to do your research for you? Interesting that you list Nintendo and consoles who take 30% cuts from their monopoly stores.

But checking your example of Alan Wake 2, looks like it launched at $60 on consoles (30% cut) and $50 on Epic (12% cut). Huh, funny how that works.

Here's an example of a communication from a court document:

A Valve employee informs [redacted] in an email that Valve will be delisting one of its games due to discrepancies between Steam and other platforms. When describing Valve’s decision, Valve states, "Ultimately [redacted] retail strategy is yours to control in whatever way you see fit. However, it is our job as stewards of the platform is [sic] to protect Steam customers and to ensure that they are being treated fairly. We will not knowingly invite customer regret by offering your game at a premium to other retailers.

There are dozens of examples like this. This is not behavior of a company that's not price fixing. https://www.courtlistener.com/docket/59859024/348/1/wolfire-games-llc-v-valve-corporation/