This page explains the system used for the dice rolls in the play by post role plays. The system exists to help manage certain events; mostly combat and determine a result. The rules of the system and instructions are below:
Attacking/initiating party goes first. Roll a 20 sided die.
Defending/reacting party goes next. Roll a 20 sided die; try to beat the attacker.
Beating the attacker means successful defense.
If attacker rolls higher they may roll an attack die... For normal weapons roll a six sided die. Advanced and instant death weapons roll a 12 sided die.
All players have 10 HP; at 0 they go unconscious... At -10 they die.
If a player is in a mech, vehicle or other enclosure the enclosure gets HP as well determined by the GM under what the structure is and how much defense it would reasonably have.
If a player on the attacking or defending side has skills relevant to the attack, is wearing power armor, using a special weapon or a skill that would make their attack stronger a plus is applied to their roll for attacking or defending up to 10 points depending on the GMs determination on the players skill. A player can also lose points up to 10 for having certain status effects, being injured, sick or otherwise unable to move as fast.