Rusty Lake's brilliantly sinister puzzling goes co-op in first The Past Within gameplay trailer

Developer Rusty Lake has shared a first - and, it has to be said, slightly unnerving - look at its brand-new co-operative time-travel puzzler The Past Within, the latest entry in its superb Rusty Lake and Cube Escape series.

If you've yet to experience Rusty Lake's deliciously surreal output - a collection of, so far, 15 games, all serving up a darkly atmospheric slice of casual point-and-click puzzling with a room escape slant - they're well worth checking out.

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