Hm... es gibt sie wirklich brauch man steam für die demo?
Hab zwar hl2 aber frag mal.
originalen Steam news:
Half-Life 2 Demo Released
December 20, 2004, 11:29 am · cliffe
A free demo of Half-Life 2 has been released. Featuring some of the amazing digital actors and physical gameplay that has made Half-Life 2 the leading contender for Game of the Year 2004, the demo takes players through some of the early levels of the game and later transports them to the area of the game known as Ravenholm. The demo is available at ATI.com and requires a Steam account to install.

Ja, du brauchst auch für die Demo von HalfLife 2 einen Steam Account.

Lade grade runter.
Verkürzt hoffentlich die Wartezeit bis Freitag...