After months of alpha releases, Estranged, a first-person shooter/exploration mod for the Source Engine, has finally entered beta! With new (and reworked) maps, new voice work, and new models, Estranged casts you as a fisherman stranded on a mysterious island where many of the residents have gotten a bit bitey. Solve physics puzzles, talk to a few oddball locals, and engage in occasional bouts of armed combat with zombie-types and guards as you explore the mod's first three-chapter act. You don't even need Half-Life 2 to run it, only the free download of Source SDK Base 2013.
The only thing missing from Alan Edwardes' Half-Life 2 mod Estranged is a cryptic introduction narrated by Rod Serling, possibly with a door flying into your face from a starry sky. But Estranged's "key of imagination" still unlocks plenty of mystery involving a wrecked ship, a puzzling island, its eccentric inhabitants, and a moonlit beach.