Is crossplay supported?
Yes. The release FAQ confirms crossplay for Deep Dish Dungeon.
The listed platforms are:
- Steam on Windows and macOS
- Xbox Series X|S
- Xbox PC
- Xbox Cloud Gaming
How large can the group be?
Co-op supports three players total, including the host. You can also explore alone. See the co-op page for the player limit and Steam invite checks.
If friends cannot connect
A joining error does not change whether the game supports crossplay. Match the symptom to the connection checks and keep both players’ platforms and game versions available when seeking support.