Valve has made The Orange Box available to pre-order on Steam ahead of what is now a 10th October activation date - and those who pre-order will be able to play the Team Fortress 2 beta from 17th September.
Orange Box will sell for USD 49.95 on Steam, and pre-purchases will get a 10 percent discount on that price, as well as a free copy of Peggle Extreme.
The compilation release - which consists of Half-Life 2: Episode Two, Team Fortress 2 and Portal - is also being produced for Xbox 360 and PS3. The 360 version will launch at the same time (at European retail 12th October) while the PS3 version is due a few weeks later.
Expect more details on the Team Fortress 2 beta in the coming days, including a full overview of what's in store.