Evidence is building that Valve will announce a brand new Counter-Strike game today.

In a thread speculating about the new game on the SteamPowered forum, Jess Cliffe, one of the original creators of Counter-Strike, wrote "Global Offensive".

Supporting evidence comes from the E-Sports Entertainment Facebook page, which reads: "Counter-Strike: Global Offensive... More info in the morning."

The ESEA's own Craig "Torbull" Levine supposedly visited Valve to help develop this new version of Counter-Strike.

The game is rumoured to be set for release during the first quarter of 2012. It's also said to focus on five versus five competition, and plays on an updated Source engine.

New guns and grenades are expected. Will it be free to play, as Valve's own Team Fortress 2 now is?