《半条命》出售25周年更新上线 初代游戏免费收

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为庆贺《半条命》系列出售25周年，Steam现可免费收与初代游戏《半条命》，同时25周年更新也已上线。25周年更新内容：半条命上止链路剧情迷您战役）4张新多人舆图绘里设定进级支撑足柄战Steam交际经