Quote: Valve has revealed to the UK version of PC Gamer that a Half-Life 2 expansion is in the works. According to the magazine, Half-Life 2 character Alyx Vance will be playable and will also sport a new weapon that is currently dubbed as the Alyx Gun. Also, her robotic companion Dog will show-up in the expansion. No word yet on when we can expect the expansion to be released.
