Core Decay is an upcoming indie first-person action role-playing video game developed by Ivar Hill and Slipgate Ironworks, and published by 3D Realms. Described as a “philosophical sci-fi adventure”, the game takes inspiration from classic 1990s shooters Descent, Deus Ex and System Shock.
It’s been pretty quiet around it since the Embracer debacle but the dev just confirmed that development is ongoing:
https://mastodon.social/@ivarhill/112505739455091634