But a lot of smaller companies, the forum / discussion site is just there for support. Factorio, for instance, needs a discussion site where players could swap

But a lot of smaller companies, the forum / discussion site is just there for support. Factorio, for instance, needs a discussion site where players could swap strategies and discuss the game. Its complex enough that the players have a need to work together to discover how... say... the best layout for trains was or other such systems. Factorio was funded by two sources: Reddit (/r/Factorio was very big), and the developers, who ran a private phpBB forum for this purpose. Additional hosting existed across the internet to help distribute mods, "Blueprints" and other community-sourced strategies/features. There's no need to make a giant mega-advertising webpage. The "usefulness" of these systems is far smaller.