If a game isn’t sold on Steam, It isn’t going to sell well.
Because of the huge amount of Valve fanboys who only buy games if they are on Steam.
Games on other stores might as well not exist.
And more, if a game even dares to launch on a different store, it would garner unfavour of all those Valve fanboys and hurt their sales even if afterwards it does launch on Steam.
If a game isn’t sold on Steam, It isn’t going to sell well.
Because of the huge amount of Valve fanboys who only buy games if they are on Steam.
Games on other stores might as well not exist.
And more, if a game even dares to launch on a different store, it would garner unfavour of all those Valve fanboys and hurt their sales even if afterwards it does launch on Steam.
It is a user enforced monopoly.
Fortnite, Apex Legends, Guild Wars 2 (which admittedly released on Steam later) and more all prove this claim false.