Sci-fi shooter Mass Effect 2 has topped the UK all-format games chart for the second week running.

The highly-acclaimed EA Games title has once again kept Just Dance for the Nintendo Wii off the top spot.

The epic Mass Effect 2 merges the character-driven plotlines of an RPG with the action and intensity of a first-person-shooter and is available on Xbox 360 and PC.

Call of Duty: Modern Warfare 2 retains the number three position in its thirteenth week in the charts.

This week’s highest new-entry was Dante’s Inferno for Xbox 360 and PlayStation 3, an action-adventure loosely based around Dante Alighieri’s epic poem, The Divine Comedy.

The best-selling PC-only game was Star Trek Online, a new-entry from Atari in at number 11.

Video game Modern Warfare 2 has become one of only a handful of entertainment franchises to take more than $1bn (£625m)in revenue, its publishers say.

It went on sale in November and made an estimated $550m in its first five days.

The sales put it alongside other $1bn titles such as Guitar Hero III and World of Warcraft also owned by publisher Activision.

It also puts it alongside other entertainment franchises such as the recent 3D science fiction smash Avatar. The film’s takings as of 4th January make it the fourth-biggest film ever made.

Ahead of it are Titanic ($1.8bn; £1.1bn), The Lord of the Rings: The Return of the King ($1.12bn; £695m) and Pirates of the Caribbean: Dead Man’s Chest ($1.07bn; £664m).

However, direct comparisons between films and video games are difficult as games typically retail for between three and five times the cost of a cinema ticket.

The first-person-shooter game is the sixth instalment in the Call of Duty series.

See our top ten list of PC Games.

Source: BBC Tech News

Eidos has officially announced Tomb Raider Underworld during the Company’s interim trading statement:

Following a review of our 2008 platform and product line up, we have decided to move the release date of 4 titles into the 4th calendar quarter.

The most significant of these titles is the next Tomb Raider game, Tomb Raider: Underworld, which we are now scheduling to launch on 6 platforms simultaneously during the Christmas season as opposed to the previously planned 3 platforms (PC, PS3 and Xbox 360) in June.