Why add a Steam link to the infobox unless it's the only way to get the game? I find it a bit misleading to the general public.
Topic on Talk:Assassin's Creed III
This is correct, we should move these to a new template. There is some work being done on DigDist, which it could be incorporated into.
I think the Steam and GOG links should only be present if it's the only way to get the game. Otherwise, mentioning the various places where to get the game is more fair (instead of just Steam).
But what kind of template are you referring to?