Only the host needs to own the DLC (like Lost Valley or Palace of Ice ) for all participants to play.
Online play is available across PC, Mac, and Xbox consoles. Players on the Microsoft Store and Steam can play together, and console players can access cross-platform multiplayer. Solasta Crown of the Magister online
Solasta: Crown of the Magister features a robust mode that allows up to four players to tackle the entire campaign together. While originally a single-player experience, the game now supports full multiplayer across all official DLCs and custom user-created campaigns. Multiplayer Mechanics & Logistics Only the host needs to own the DLC
All save files are compatible with both single-player and multiplayer; a group can start a session together, and the host can later continue that same save file alone or with a different group. Solasta: Crown of the Magister features a robust
Solasta: Crown of the Magister (PC) Co-Op Information - Co-Optimus
The host manages the session, selecting the adventure and assigning specific characters to each player. If playing with fewer than four people, players can control multiple characters to maintain a full party.