Blast creates a large explosion at the user's position, damaging every enemy player and building near them. The damage is only enough to kill a full-health Scout at point-blank range (roughly 130 points of damage). This damage decreases the further away an enemy is. Blast also forcibly uncloaks and undisguises Spies using it, and prematurely stops the effects of Time Travel. During Smissmas, using Blast will spawn snowflakes and produce the sound of sleigh bells.
Developer information[edit | edit source]
Players are only damaged if they are less than 250 Hammer units away from the attacker and on a different team. Damage is calculated by subtracting four-tenths of their distance from 150. (i.e. someone 30 units away, multiplied by 0.4 to 12, and 150 - 12 = 138 total damage dealt). Blast is also one of the few powerups to not require any callback. The amount of damage dealt to enemy buildings compared to players can be controlled with the ConVar
sm_fortressblast_blast_buildings. Blast's Smissmas features are also controllable with