Concussion Grenade
Concussion Grenade Icon

Description (6%) On hit: 6% chance to stun enemies for two seconds
Stacking +6% multiplicatively
Unlock Engineer: Kill a Boss in 15 seconds or less.
Rarity Uncommon
Type Support
Pickup Text Chance to stun enemies.
Concussion Grenade Shipping Details

The Concussion Grenade is an uncommon support item in Risk of Rain. On hitting an enemy, the player has a 6% chance to stun enemies for two seconds.


Item SynergiesEdit

  • Partnering this item with the Permafrost is delightful.

Character SynergiesEdit

  • Characters that has a fast rate of firepower, such as Commando, will greatly benefit from this item, near possibility of stun-locking an enemy with a good amount of stacked items.


  • The chance to stun reaches roughly 100% at 384 pickups.[1]