Detonium (3.5e Equipment)

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Author: Eiji-kun (talk)
Date Created: 2-15-17
Status: Complete
Editing: Mechanical changes on Talk please.
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Detonium[edit]

Rarely mined and difficult to produce artificially, detonium is very strong but terribly fragile. When they break, they break explosively! Detonium is a glass-like substance which is molded and put under intense pressure while still molten. When it cools it is very resistant, but prone to explosive detonation. It comes in several colors depending on its impurities, but is almost always smoky translucent, marked with stress lines and distortions.

Any weapon primarily composed of metal can be made as a detonium weapon. It provides very little benefits over an iron weapon beyond the increased hardness, but it does ignore hardness less than 10. If sundered, the attacker's weapon and the attacker (if in melee) takes twice the damage of the sundering attack. The detonium weapon is reduced to dust from this explosion.

Because this is costly it is usually used in ammunition instead. In ammunition, the detonium breaks on contact and deals an extra +5 points of damage. The explosion counts as an area effect covering a 5 ft square for the purposes of hitting swarms or multiple small creatures in an area (the same attack roll applies to all of them).

Detonium armor is risky given how... explosive it is. But some take advantage of this. Detonium armor gives the wearer death throes. On death, the armor explodes dealing 5 damage per HD to all creatures in a 10 ft radius, with a Reflex save for half (DC 10 + 1/2 HD + highest ability modifier). The detonium armor is reduced to dust from this explosion.

Detonium shields have a unique property, in that they are given deliberately explosive reactive plating made of detonium on an iron frame. It has 50 charges, and each time a creature misses you but would hit you if you lacked your shield bonus, the creature hits the shield and is dealt 5 points of damage to themselves and their weapon, depleting 1 charge. When all charges are depleted, the shield is reduced to a normal metal shield with a -1 AC penalty (minimum 0) but the charges can be replaced by paying the material cost for the shield again.

Lastly, the material itself can be used as an explosive material. They come in powder in plastic rods and are activated by kinetic trauma or sonic disruptions. One pound of material produces an explosion of 1d8 damage out to a 10 ft radius with a DC 15 Reflex save for half. The damage is very effective against unattended objects, ignoring 10 points of hardness. For every additional pound of material used the damage increases by +1d8 damage, and for every 3 dice of damage the radius increases by +5 ft. Used in this way the detonium is set as a trap (taking 1 round), and it breaks weaker objects in the area as if subject to an extraordinary shatter on a failed save (CL equal to number of d8s in explosion), as the area effect (or as the target effect for items touching the explosive).

Detonium is so costly that weapons and armor made from it are always of masterwork quality; the masterwork cost is included in the prices given below. Thus, detonium alloy weapons and ammunition have a +1 enhancement bonus on attack rolls, and armor and shields have their armor check penalty decreased by 1.

Detonium has 1 hit point per inch of thickness and hardness 20. It is immune to acid and electricity, takes half damage from cold and fire, and full damage from sonic.

Type of Detonium Item Item Cost Modifier
Ammunition +160 gp
Armor +800 gp
Shields +1000 gp
Weapon +1000 gp
Explosives 80 gp x number of pounds



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Eiji-kun's Homebrew (5605 Articles)
Eiji-kunv
AuthorEiji-kun +
Identifier3.5e Equipment +
RatingUndiscussed +
SummaryRarely mined and difficult to produce artificially, detonium is very strong but terribly fragile. When they break, they break explosively! +
TitleDetonium +