Steam优惠券-折扣码-Play Now For Free - Half-Life Collection

Half-Life: Alyx is coming in March, and we are celebrating early by making all games in the Half-Life Collection FREE to play for Steam users, from now until the day it launches!

If you already have Steam installed, you can click the following links to start playing now!
Half-Life
Half-Life 2
Half-Life 2: Episode One
Half-Life 2: Episode Two

If you don't have Steam, you can download it here.

Half-Life: Alyx is set before the events of Half-Life 2 and the episodes, but the games share characters and story elements. The Half-Life: Alyx team believes that the best way to enjoy the new game is to play through the old ones, especially Half-Life 2 and the episodes, so we want to make that as easy as possible.

(北京时间与太平洋时间的换算)

实行夏时令时，两个时区相差15个小时。即太平洋时间比北京时间晚15小时，所以太平洋时间上午10点是北京时间第二天的凌晨1点。如果实行冬时令，两个时区相差16个小时。即太平洋时间比北京时间晚16小时，所以太平洋时间上午10点是北京时间第二天的凌晨2点。