Half-Life 2: Dear Esther
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Both of the Half-Life games have some incredible horror mods, so its hard to pick which ones to list. For Half-Life 2 we'll have to go with Dear Esther, which has a hazy, dream-like quality just dripping with atmosphere. It's much more slow moving than many of the other zombie-focused mods, but well worth experiencing anyway.
Published Oct. 3rd 2016