Grenades and Explosives

An explosive is a weapon that, when detonated, affects all creatures and objects within its burst radius by means of shrapnel, heat, or massive concussion. Its effect is broad enough that it can hurt characters just by going off close to them.

Some explosives, such as grenades, can be thrown, and they explode when they land. Others are planted, with fuses or timers, and go off after a preset amount of time elapses.

Thrown Explosives

Thrown Explosives (hit)
Roll on d4	Corner of targeted square
1	Upper Left
2	Upper Right
3	Lower Right
4	Lower Left

An attack with a thrown explosive is a ranged attack made against a specific 5-foot square. (A character can target a square occupied by a creature.) Throwing the explosive is an attack action. If the square is within one range increment, you do not need to make an attack roll. Roll 1d4 and consult the table to see which corner of the square the explosive bounces to.

If the target square is more than one range increment away, make an attack roll. The square has an effective Defense of 10. Thrown weapons require no weapon proficiency, so a character doesn’t take the –4 nonproficient penalty. If the attack succeeds, the grenade or explosive lands in the targeted square. Roll 1d4 and consult the table above to see which corner of the square the explosive bounces to.

If the character misses the target, the explosive lands at a corner of a square nearby in a random direction. Consult the tables below to determine where the explosive lands. If the weapon was thrown two to three range increments (11 to 30 feet), roll 1d8.

Thrown Explosive (Miss 2 to 3 Range Increments)
Roll on d8	Location Struck
1	upper right corner, one square beyond target
2	upper right corner, one square right of target
3	lower right corner, one square right of target
4	lower right corner, one square short of target
5	lower left corner, one square short of target
6	lower left corner, one square left of target
7	upper left corner, one square left of target
8	upper left corner, one square beyond target

For ranges of up to five range increments (31 to 50 feet), roll 1d12.

Thrown Explosives (Miss 4 to5 Range Increments)
Roll on d12	Location Struck
1	upper right corner, two squares beyond target
2	upper right corner, one square beyond and right of target
3	upper right corner, two squares right of target
4	lower right corner, two squares right of target
5	lower right corner, one square short and right of target
6	lower right corner, two squares short of target
7	lower left corner, two squares short of target
8	lower left corner, one square short and left of target
9	lower left corner, two squares left of target
10	upper left corner, two squares left of target
11	upper left corner, one square beyond and left of target
12	upper left corner, two squares beyond target

After determining where the explosive landed, it deals its damage to all targets within the burst radius of the weapon. The targets may make Reflex saves (DC varies according to the explosive type) for half damage.

Planted Explosives

A planted explosive is set in place, with a timer or fuse determining when it goes off. No attack roll is necessary to plant an explosive; the explosive sits where it is placed until it is moved or goes off.

When a planted explosive detonates, it deals its damage to all targets within the burst radius of the weapon. The targets may make Reflex saves (DC varies according to the explosive type) for half damage.