Tech Specs
A rules reference stub for the d20 mech engine. Short, searchable, and expandable as we lock in the system.
Core Roll
Roll d20 + pilot skill + mech system bonus against the target number.
Heat
Weapons add heat. Venting removes heat, but overheated machines lose reliability.
Armor
Armor absorbs damage before internal structure and critical systems are threatened.
Movement
Walking is stable, sprinting raises defense, and jump movement adds heat.
Critical Hits
A natural 20 deals extra damage and can expose weapons, engines, or cockpit systems.
Design Goal
Classic crunchy mech decisions, resolved with fast d20 math at the table.