Valve says it will allow all games in its Steam store, no matter how controversial

The fury over the Epic Games Store, explained - Polygon

Valve's Latest Steam Controversy Was an Inevitability, and It's

Valve temporarily stops adding adult games to Steam

Steam users react to divisive privacy changes

Steam (service) - Wikipedia

Valve explains 'progress' toward a new Steam Store content policy

Valve's Steam store dumps non-gaming videos - CNET

Valve Will Allow Everything Legal That's Not 'Trolling' on Steam

Valve: We shouldn't decide what you can buy on Steam

Valve plans to shut down Steam-based CS:GO gambling sites