Zrevnur: Most games on GOG are also on Steam. And many games are on other platforms too. So I think your premise (choice of storefront) is wrong. More store fronts = more income.
To big time devs/ip holders(and even some mid sized ones) some things(control of said IPs, for example) can be more important than money.
Zrevnur: And GOG is often more expensive too which gives also more income per sale.
Sometimes, but GOG often sells less units than Steam/epic & takes a bigger cut.
Zrevnur: And there are the (often to read in the forum but I don't know how many other people do that) customers buying the same game on multiple stores.
Most, though, buy the game on steam/epic or GOG/etc only.....lesser amounts buy from multiple storefronts.
Zrevnur: So taking all this into account: Not selling game on GOG simply means less income. From a logical POV this is simply the most relevant perspective.
As I said above, to some losing those few sales is ok/acceptable for various reasons.
For some, the lost sales are peanuts(the big ones) and they like to control their new IPs...and for others they sometimes don't want to sell on GOG for those or other reasons(smaller user base, etc).
Zrevnur: If they don't come to GOG it doesn't matter...
But why do you think they don't come to GOG? We have GOG partners right now with 5+ year old AAA games they won't release here due to being able to milk them at other stores while keeping a tighter hold on them.
They could easily drop them here for, as you said, more money/sales....yet they often don't. That alone should speak volumes.
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Lastly, you talk civilly and ask questions, and I respect that.....but based on your wording it seems you don't want to see(or can't see) things that you disagree with(even if true or likely to be true) regarding this topic so i'll just leave it with this:
Many here(in this thread and others) have shown(with proof[in some cases], common sense, watching trends, etc) that many ip holders hold a stronger bargaining chip than GOG and that GOG is(and will likely always be) a small fish compared to the "giants"(storefronts). ========================================================