What Is Game Master?

How to use it

• In a tabletop roleplaying game one person, the GM, describes the world and plays everyone in it. The others each play one hero, a player character.
• Game Master keeps track of everything that is tedious at a table: hit points, turn order, bonuses, ranges, line of sight, who can see what, and what has happened so far.
• You can play fully on screens, or at a real table with physical dice, paper sheets, miniatures and a shared map (Tabletop Mode).
• On a PC, press F11 (or choose Settings > Display) for fullscreen with no title bar or borders; press F11 again to go back to a window.

Step by step

1. The GM prepares a campaign: maps, characters, NPCs, monsters, encounters and items.
2. The GM starts a session and players join.
3. Players explore in Free Play and decide what their characters do.
4. Fights switch the location to combat, with turns in order.
5. The session is saved as you go and can be continued later.

How the App Thinks

• The app automates the math: modifiers, target numbers, Armor Class, damage, resistances, ranges and movement costs.
• Players decide: where to move, whom to attack, which spell, whether to search. The app never chooses for them.
• Players roll their own dice. The app shows the exact roll, waits for the ROLL button and then resolves it at once.
• The GM stays in control: any roll, hit, damage or result can be overridden afterwards, and every override is recorded.
• Nothing waits for approval in normal play. The GM steps in only when they want to.

Start Here

1. Create or open a campaign.
2. Add locations.
3. Build or choose maps.
4. Create characters.
5. Add NPCs and monsters.
6. Create encounters.
7. Add items and rewards if you need them.
8. Start a session.
9. Connect players if you use LAN.
10. Begin play.

Common questions