NVIDIA will release Vault 1080, a free mod for the PC version of Bethesda Softworks' post-apocalyptic RPG Fallout 4, on September 2. The mod includes over an hour of new gameplay and showcases NVIDIA's advanced lighting features.

The mod was created by NVIDIA's in-house Lightspeed Studios. The GeForce.com blog describes some of the more advanced graphical features in Vault 1080:

Volumetric lighting features extensively – in ways not seen in the standard game – while shadows are more realistic and velvety than ever. This is thanks to HBAO+ and its control of ambient occlusion, which creates authentic depths anywhere a light source is blocked, no matter how small or fleeting. You'll also see those lovely godrays whenever you do find the sun, plus weapon debris and new meshes and materials.

NVIDIA adds that the side-mission in the Vault 1080 mod is pretty creepy, too:

It's a dark and ominous journey before you even head below ground, as you travel to the ruins of a fog-shrouded church through hostile marshland. Once in you find the entrance to Vault 1080 and its dark, intimidating tunnels. Tunnels that are, inevitably, full of twisted dangers. This is a big mod – equal in size to the other vaults spread across the commonwealth – with its own brand new questline. And it's a Fallout vault like you've never seen before. It's certainly taken its toll on its occupants. They've become a congregation that embraces the darkness and sickness, and they've done it – so they believe – to survive. They're not the friendliest bunch. But is the whole thing built on lies?

When NVIDIA's Fallout 4 mod is released, you can grab it from Bethesda.net for free. In case you haven't played Fallout 4 yet, the PC version of the game is on sale for $29.65 over at Amazon

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