Based on the Marc Laidlaw short story--Epistle 3--Boreal Alyph aims to capture Valve’s lost vision, and bring a fun, and satisfying end to the celebrated Half-Life series. Epistle 3 is a synopsis of Half-Life 2: Episode 3, written by ex-Valve writer, Marc Laidlaw. Since its publication in the the 25th of August, 2017, Half-Life fans at Keep Away From Fire have been working hard to bring Epistle 3 to life in the source engine.
Nice!
Looks like UE4!
For this point of time I personally think this Source Epistle 3 embodiment looks better than UE4 one. An that's amazing...
Actually I think this is a render in the modeling software and not in engine