Right, all the games that they think will be successful. Most games won't- it's a power law market.
There's nothing preventing a game dev from selling exclusively on their own site. It's not as though Steam has exclusive access to Windows customers like the App/Play Store do on their platforms. Steam earns its customers and their trust and developers follow.
There's nothing preventing a game dev from selling exclusively on their own site. It's not as though Steam has exclusive access to Windows customers like the App/Play Store do on their platforms. Steam earns its customers and their trust and developers follow.