The Catalyst GM App for Android lets Game Masters store their campaign details in an easy to manage system. Create NPC and battle data for streamlined encounters.


  • NPC Creation

    • Create numerous demons and creatures for your campaign

    • Simplified growth point spending

    • Automatic trait calculation

    • Track status modifiers and automatically apply the effects

    • Over/Under system shows the NPC’s power relative to your players’ level

    • Template system lets you quickly make variants of the same base NPC

  • Battle

    • Construct and save battles with specified NPCs

    • Manage reaction ordering for both NPCs and players

    • Select and play cards for battle for all NPCs

    • Automatic vigor tracking and enforcing for card usage and spell maintenance

    • Aid with checks and other combat details