Do my players need a plan?
No. One plan covers the whole table. When anyone in a campaign has Core or Pro, or a Core or Pro trial, everyone in that campaign can play there for free: join sessions, roll dice, take notes and update their characters.
Players need their own plan or trial to:
create and run their own campaigns
use the AI tools in Quest Portal, such as the Game Master Assistant. These need the player's own Pro or Pro trial, even when the GM has Pro.
Everyone spends their own credits. Nobody can spend another member's credits.
When another member of the campaign has Pro, players can also connect their own AI agent, such as Claude or ChatGPT, to that campaign over MCP, even without Pro of their own. See Connect Quest Portal to Claude and ChatGPT.
One exception from older plans: if your GM shares Pro in a campaign through legacy campaign sharing, you can use the AI tools in that campaign, and their credits cover you when yours run out.
See Plans and Billing for more.