Valve hasn't previously compiled an annual list of which Steam games earned the most money and so this gives us an idea which games, including free-to-play games, performed best this year.

Rather than ranked in order from 1-100, the list is separated into tiers, from Platinum to Bronze, based on revenue, as opposed to copies sold.

• Rocket League
• XCOM2
• CS:GO
• Grand Theft Auto V
• Civilization VI
• DOTA 2
• Dark Souls 3
• No Man’s Sky
• The Division
• The Witcher 3
• Fallout 4
• Total War: Warhammer

No Man's Sky managed to make it into the platinum category despite a huge pile of hate from gamers in August with some managing to obtain refunds via Steam despite having played the game for 50 hours.

The Gold level list was:

• Dead by Daylight
• ARMA 3
• Call of Duty Black Ops 3
• Rainbow Six Siege
• Stellaris
• ARK: Survival Evolved
• DOOM
• Team Fortress 2
• Rise of the Tomb Raider
• Warframe
• H1Z1 King of the Hill
• Stardew Valley

The silver tier included

• Rust
• Far Cry Primal
• Payday 2
• SMITE
• Europa Universalis IV
• Skyrim
• Subnautica
• Hearts of Iron IV
• Planet Coaster
• Civilization V
• Cities: Skylines
• War Thunder
• Watch Dogs 2
• Deus Ex Mankind Divided
• Dying Light: The Following

So all prettly much as expected.