Getting smart with shaders to create Dredge expansion The Pale Reach

gamedeveloper.com:

It's been a pretty good year for New Zealand studio Black Salt Games. The company's debut release, Dredge, launched to critical acclaim and recently topped 1 million sales, smashing internal expectations.

Now, the team have expanded the cosmic fishing adventure with the launch of a new expansion called The Pale Reach. The add-on, however, represents a swift change in direction for Black Salt, which initially planned to release a different expansion dubbed The Iron Rig before temporarily shelving that plan due to production concerns.

During a chat with Game Developer earlier this year, Dredge producer Nadia Thorne and 3D artist Mikey Bastiaens explained The Iron Rig was pushed back to 2024 after it became apparent releasing this year would require more lead time. 

"The choice [to delay] was really no choice," says Thorne. "But we had promised players that we would get them something this year, so we asked ourselves 'what can we do in the time we have?' And we knew we could create a new area, because we'd created five."

The Pale Reach adds a brand new ice-themed biome to Dredge that can be experienced at any stage during a playthrough, integrating seamlessly into the base game while expanding gameplay with a new story of "bitter betrayal," additional equipment, and fresh horrors from the deep.

Having already established some solid production pipelines where biomes are concerned, Black Salt felt comfortable building The Pale Reach during a relatively short timeframe. But as is always the case, whether you're making video games or sailing through the salty brine, the tides can turn in an instant.

One of the biggest challenges Black Salt faced this time around was bringing some fidelity to the frozen wastes of The Pale Reach. "It