CORE DECAY is an upcoming retro FPS for PC and mobile. Explore derelict facilities, uncover a vast conspiracy, install cybernetic upgrades as you gain levels, and find a wealth of unique weapons and powerups in an old-school shooter inspired by the classics of the late 90s.

CORE DECAY is an upcoming retro FPS for PC and mobile. Started as a one-man (Ivar Hill) passion project, the amount of contributors quickly grew, and after some time, it drew the attention 3D Realms, who decided to publish, and co-develop the project from now on. The official confirmation of this collaboration came with the event Realms Deep.
I joined the CORE DECAY-team in April 2020 to handle the Technical Design.
Since I joined the team, I started rewriting the entire enemy AI system, as well as designing parts of the progression system and upgrade system. I also handled the testbed for player weapon upgrades and abilities.
After the acquisition through 3D Realms, I started concepting some additional gameplay elements, as well as side content for the planned, semi-open world of the game.