CO-OP / VERIFIED GUIDE
Pathogenic Co-op: Local Setup & Remote Play
Set up local split-screen and understand its limits.
Pathogenic officially supports shared/split-screen co-op and Steam Remote Play Together. Assign devices before the run, confirm each player controls the intended slot, and use Steam Input when a supported controller is not detected correctly.

Answer official support first, then walk through devices, Remote Play Together, and input troubleshooting.
What co-op is supported
Start with the exact player question behind “Pathogenic co-op.” This section keeps the answer scannable, defines the terms that matter, and avoids padding the page with unrelated game information.
Facts are separated from strategy. Patch-sensitive mechanics carry a review date, and recommendations are presented as flexible options—not the only correct way to play.
Local setup
Use the system in context. Pathogenic rewards complete chains, so the practical advice here explains inputs, outputs, tradeoffs, and what to do when a run does not give you the ideal component.
Remote Play Together and input fixes
Finish with a decision you can use in the next run. Check the current version, follow the related mechanic or route page, and treat any community strategy as a tested option rather than a permanent rule.