Game rules - DDM Guild

Cover and Melee Combat
Cover makes it harder to hit an enemy. If an
enemy creature is adjacent to the attacker but
around a corner or end of wall, it has melee
cover and gets a +4 bonus on AC against
that attacker.
Big Creatures: When a creature takes up more
than 1 square, it doesn’t get melee cover if
any of the squares it occupies doesn’t have
melee cover.
Attacks of Opportunity
If an enemy moves out of a square threatened
by a creature, the creature may make a single
immediate melee attack against that enemy.
This is called an attack of opportunity.
One Per Turn: There is no limit to the number
of attacks of opportunity a creature can make
in a round, but it can make only one in a
given creature’s turn.
Timing: A creature makes an attack of
opportunity in response to an enemy’s
movement. The attack takes place when the
enemy is about to leave the threatened square,
but before it actually does. Pause the
movement and make the attack; if the enemy
survives, it continues moving.
Choose Your Attack: If the attacking creature can make multiple melee attacks, choose which
single attack it uses for its attack of opportunity.
Cover in Melee: A creature can’t make an attack of opportunity if the defender has melee
cover against it.
Line of Sight: A creature can’t make an attack of opportunity if it doesn’t have line of sight to
the enemy (see Line of Sight on page 15).
Legal Position: If a creature ends its turn in an illegal position as a consequence of an
enemy’s attack of opportunity (or any other circumstance), move it to its player’s choice of the
nearest legal squares.
CHARGING
A creature might be able to charge the nearest enemy.
To charge, a creature moves at double speed directly toward the nearest enemy within line
of sight and must finish its movement in the nearest space adjacent to that enemy (including
diagonally adjacent). If it has a clear path, nothing slows it down, and it moves at least 2
squares, that creature can make a single melee attack against that enemy with a +2 bonus on its
attack roll.
Nearest Space: The charging creature must move to the nearest space adjacent to the nearest
enemy. If this space is blocked or occupied, the creature can’t charge. If more than one space
counts as the nearest, you can choose any of them to charge to.
13