Does Inscryption Have Multiplayer?
No. The Steam feature list says single-player. There is no co-op toggle and no versus ladder. Projects such as inscrybe-with-friends are separate programs people run alongside the game. They are not a menu inside the official build, and I am not walking through an install for them.

What G0lly is doing
G0lly’s Act III fight reads a friend list and can try to summon someone else’s custom card. That scene is still a single-player boss. An empty list falls back to Mummy Lord. It does not open a lobby.
If you wanted two people on the CrypticCrafter board game, that is a physical set and a different page. It is not online play.
FAQ
Is there co-op?
Not in the official game. Steam says single-player.
Does the G0lly fight count?
No. It is a boss scene that can reference a friend list.
Related
Sources
- Steam store page for Inscryption (app 1092790) — checked 2026-11-04
- GitHub: inscrybe-with-friends — checked 2026-11-04
- Inscryption Wiki (Fandom): G0lly — checked 2026-11-04