Ambitious sci-fi title No Man's Sky wasn't even in the Top 100 grossing games on Steam last week; now it's the seventh biggest seller on the platform. 

That's all thanks to the new Worlds Part 1 update, which rolled out on July 17th, in addition to a 60 per cent price cut on Steam. The last time No Man's Sky was even in the Top 100 was back in the week ending June 11th, when it charted at No.79 before dropping out of the rankings entirely. 

Counter-Strike 2 is back at No.1 after six weeks away from the top spot, while last week's best seller, PUBG: Battlegrounds, dropped from first to second place. Nexon's The First Descendant held steady at No.3, coming in ahead of two Valve releases; smash hit MOBA dropped two positions to fourth week-on-week, while the company's Steam Deck hardware held onto No.5. 

Action RPG blockbuster Elden Ring was the sixth biggest seller again, while freshly-released survival MMO title Once Human rose up from eighth to seventh week-on-week. Horror multiplayer game Dead By Daylight shot up 20 places to No.8, in party thanks to a collaboration with Crystal Dynamics for Lara Croft to appear in the game. 

Rounding off the Top Ten is Digital Extremes' Warframe, no doubt helped by the game's Tennocon event taking place alongside the launch of a range of new cosmetics and items. 

Here is the Steam Top Ten for the week ending July 23rd: 

1. Counter-Strike 2, Valve
2. PUBG: Battlegrounds, Krafton
3. The First Descendant, Nexon 
4. Dota 2, Valve
5. Steam Deck, Valve
6. Elden Ring, Bandai Namco
7. Once Human, Starry Studios
8. Dead By Daylight, Behaviour Interactive
9. No Man's Sky, Hello Games
10. Warframe, Digital Extremes