Coming from mobile indie games, I was thinking ads (which I now realize steam doesn't allow) and mtxn. Despite whatever moral qualms people have with this type

Coming from mobile indie games, I was thinking ads (which I now realize steam doesn't allow) and mtxn. Despite whatever moral qualms people have with this type of monetization I can say there are many multiplayer games that would not be possible without them (or VC funding). I agree that for most games, the difference in installs between free and not-free is many orders of magnitude.