Sega's Football Manager 2008 has entered the UK's all-formats chart at number one this week, knocking EA's FIFA 08 off the top spot.
Accounting for 38 per cent of all PC titles sold in the past week, Sports Interactive's management sim is Sega's first multiformat number one title since last year's version of the popular football franchise.
With FIFA 08 at number two this week, EA's generous packing of Valve's The Orange Box makes a strong debut at number three considering it's only currently on two formats — PC and Xbox 360 — with the console version accounting for 77 per cent of sales.
The other big new release entering the charts this week is Nintendo's The Legend of Zelda: Phantom Hourglass for DS at number four, nudging Halo 3 down the charts to number five.
Microsoft's Project Gotham Racing 4 also drops down the charts from two to six, as does THQ's movie tie-in Ratatouille at seven and EA's Tiger Woods PGA Tour 08 at eight.
Sony's first-party PS3 shooter Resistance: Fall of Man is at nine this week, with Vivendi's Crash of the Titans climbing the charts from 19 to ten.
Other new entries in the top forty are Disney's High School Musical: Making the Cut! at 18 and Take 2's Carnival: Funfair Games for the Wii at 25.