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Core Decay

Travel across a dying Earth and uncover a sinister plot to preserve humanity no matter the cost - even if it means redefining what makes us alive - in an old-school atmospheric immersive sim that explores the nature of consciousness and individuality.

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Developer
Ivar Hill, Slipgate Ironworks™
Publisher
3D Realms
Release
Coming Soon
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Updated: Jul 13, 2026Developer scaleThe operating scale of the game's developer.
Updated: Jul 13, 2026Publisher scaleThe operating scale of the game's publisher.
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About the Game

THE FINAL BREATH OF HUMANITY. Travel a world on the brink of annihilation, uncover a great conspiracy, and face the lengths we are willing to go for our own survival. Your search for answers takes you across Antarctica, Asia, North America, Africa, and Europe.

A TRUE IMMERSIVE SIM. Engage with an endless variety of gameplay mechanics, and solve challenges your own way. Talk your way out of tricky situations, pick locks and hack computers, find paths through city rooftops and ancient sewer systems, engage in lethal or non-lethal combat, and explore places that feel like real locations inhabited by real people.

THE WORLD WAS NOT MADE FOR YOU. You are a small part of a world greater than you, and the sooner you learn this, the longer you will survive. Explore at your own pace, ask for directions, seek advice, play people against each other, and find unique opportunities.

COGITO, ERGO SUM. Partake in philosophical discourse with hundreds of people of varying viewpoints and ideas, and decide what you feel is the best path for the future of life on Earth.

MODERN OLD SCHOOL. Experience a level of depth worthy of the classic immersive sims of the late 90s, re-imagined for the modern era of gaming.

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