Post-apocalyptic puzzler Portal 2 has held firm atop the chart table, securing a second week at number one.

Virtua Tennis 4 could only land a disappointing 23rd place. SEGA's tennis sim was the chart's only new entry. Fellow SEGA title Thor failed to hammer home a top 40 placing at all.

Mortal Kombat maintained another week in second place. Zumba Fitness stepped back up to third, likely buoyed by the release of a PS3 edition.

The remainder of the top ten remains largely unchanged - a price-reduced Call of Duty: Black Ops fired into fifth, LEGO Star Wars III was sixth and FIFA 11 scored seventh.

After 79 weeks in the chart, Wii Fit Plus leapt up to eighth, while THQ's Homefront and Ubisoft's Just Dance 2 made up ninth and tenth, respectively.

Also missing from the listing is Maxis role-player Darkspore, although Chart-Track will not have counted Steam sales for the PC title.

This Week Last Week Title Platform(s) 1 1 Portal 2 Mac, PC, PS3, Xbox 360 2 2 Mortal Kombat PS3, Xbox 360 3 4 Zumba Fitness: Join the Party Wii, Xbox 360 4 6 Operation Flashpoint: Red River PS3, Xbox 360 5 3 Call of Duty: Black Ops DS, PC, PS3, Wii, Xbox 360 6 5 LEGO Star Wars III: The Clone Wars 3DS, DS, PC, PS3, PSP, Wii, Xbox 360 7 7 FIFA 11 DS, PC, PS2, PS3, PSP, Wii, Xbox 360 8 9 Wii Fit Plus Wii 9 10 Homefront PC, PS3, Xbox 360 10 19 Just Dance 2 Wii 11 8 Crysis 2 PC, PS3, Xbox 360 12 11 Pokemon Black DS 13 18 Michael Jackson: The Experience Wii, PS3, Xbox 360 14 12 Pokemon White DS 15 16 Tiger Woods PGA Tour 12: The Masters PS3, Wii, Xbox 360 16 14 Wii Sports Resort Wii 17 31 Kinect Sports Xbox 360 18 17 Dragon Age II PC, PS3, Xbox 360 19 20 Assassin's Creed: Brotherhood PC, PS3, Xbox 360 20 22 LEGO Harry Potter DS, PC, PS3, PSP, Wii, Xbox 360 21 25 The Sims 3 DS, PC, PS3, Xbox 360 22 29 Carnival Games: In Action! Xbox 360 23 New entry Virtua Tennis 4 PS3, Wii, Xbox 360 24 33 Test Drive Unlimited 2 PC, PS3, Xbox 360 25 13 WWE All Stars PS3, PSP, Wii, Xbox 360 26 19 Shift 2: Unleashed PC, PS3, Xbox 360 27 23 Red Dead Redemption PS3, Xbox 360 28 21 Fight Night Champion PS3, Xbox 360 29 Re-entry Guitar Hero: Warriors of Rock PS3, Wii, Xbox 360 30 27 Wii Party Wii 31 32 WWE SmackDown vs. RAW 2011 PS3, Wii, Xbox 360 32 26 LittleBigPlanet 2 PS3 33 Re-entry Batman: Arkham Asylum PC, PS3, Xbox 360 34 Re-entry Football Manager 2011 PC, PSP 35 30 Art Academy DS 36 Re-entry Just Cause 2 PS3, Xbox 360 37 Re-entry Halo: Reach Xbox 360 38 24 Bulletstorm PC, PS3, Xbox 360 39 28 SOCOM: Special Forces PS3 40 Re-entry Pro Evolution Soccer 2011 3DS, PC, PS2, PS3, PSP, Wii, Xbox 360

UKIE Games Charts compiled by GfK Chart-Track.