Fallout 2 and Fallout TacticsEdit
You are an expert when it comes to the fine art of handling explosives. They always go off when they're supposed to, as well as causing extra damage.”— Fallout 2 In-game description
For characters that like to blow things up, there is nothing better than this perk. Explosives set by this character do more damage and always detonate on time.
With each rank of this perk, your character will do 20% percent more damage with mines and grenades.
Although weapons such as the missile launcher and Fat Man fire explosive projectiles, they are considered Big Guns and are not affected by this perk. However, the Fallout 3 Official Game Guide claims that the perk does work on missile launchers.
- pc xbox360 ps3The Nuka-grenade is not affected by this perk. [verified]
- pc xbox360 ps3 Grenades and mines used within the Anchorage Reclamation simulation are not affected by this perk.[verified]
Fallout: New VegasEdit
With each rank of this perk, your character will do 20% percent more damage with all weapons governed by the Explosives skill.
Note that this damage bonus only affects the actual explosive part of the weapon's damage, not the physical impact. For grenades and mines this is a negligible difference as they typically only deal 5 physical throwing damage at most. But for a Fat Man (GRA) it is much more significant as 400 of its 1000 base damage is from the physical impact.
Prior to patch 188.8.131.52xx, the Demolitions Expert perk only applied to weapons listed in a specific Form List, which contained a few notable (and undesired) omissions. The patch subsequently expanded the Demolitions Expert perk to apply to all weapons governed by the Explosives skill, unique, DLC, or otherwise. For reference, a full listing of Explosives-skill weapons follows.