Game rules - DDM Guild

Attack Rolls
When a creature attacks, you make an attack roll.
Attacking
Roll the d20, add the creature’s Melee Attack number, and add any modifiers that
apply (see page 17 for the list of attack modifiers). If the result of an attack roll
equals or exceeds the enemy’s AC (Armor Class), the attack hits. The attacking
creature deals its melee damage, reducing the enemy’s HP (hit points). Track
damage with the provided counters.
Natural 20 is a Critical Hit: If you roll a natural 20 when making an attack roll (a roll of
20 on the die, regardless of modifiers), the attack automatically hits, no matter how high the
defender’s AC. In addition, it is a critical hit and deals double damage. Some creatures are
immune to critical hits and do not take double damage, but a natural 20 still hits automatically.
If a creature somehow can score a critical hit on a roll of less than 20, that still counts as an
automatic hit.
Bonus Damage: Some attacks list bonus damage, shown by a “+” sign. For example, the Brass
Samurai’s melee attack deals “10 magic + 5 fire.” Bonus damage is not doubled on a critical
hit or an attack against a helpless creature.
Natural 1 is an Automatic Miss: If you roll a natural 1 when making an attack roll (a roll of
1 on the die, regardless of modifiers), the attack automatically misses, no matter how low the
defender’s AC.
Attacking Allied Creatures: A creature cannot make a melee or ranged attack against an
allied creature. This restriction doesn’t prevent you from targeting or affecting allied creatures
with spells and special abilities—just attacks.
Damage Effects
Reduced to Half Hit Points: When a creature’s hit points first drop to half its starting total or
lower, it must make a morale save to avoid running away. See Morale on page 21 for more
information.
Reduced to 0 Hit Points: When a creature’s hit points drop to 0 or below, it’s
destroyed and removed from the battle map.
Threatening
Even when a creature isn’t actually attacking an enemy, it can limit the actions of adjacent
enemies. An active creature threatens all squares adjacent to it.
Effects of Threatening: A creature can make an attack of opportunity (see page 13) against
an enemy creature that moves out of a square it threatens. An enemy cannot cast spells (other
than those with a range of touch) or make ranged attacks while it is in a square threatened by
your creature. However, that enemy can use special abilities.
Cover: If the threatening creature can’t see the acting creature or if the acting creature
has cover against the threatening creature, these restrictions don’t apply: The creature in the
threatened square can move without provoking an attack of opportunity, as well as cast spells
or make ranged attacks.
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