Thallium Icon

Description (10%) On hit: Damage/slow by 500 enemy damage% and 100% speed over 3 seconds.
Stacking Does NOT stack
Unlock Not Locked
Rarity Rare
Type Offensive
Damage Type Poison
Pickup Text Chance to slow and damage enemies over time.
Thallium Shipping Details

The Thallium is a rare offensive item in Risk of Rain. On hitting an enemy, the player has a 10% chance to damage/slow by 500 enemy damage% and 100% speed over 3 seconds and deals poison damage.

Shipping Details

Estimated Delivery:
Sent to:
K&K Union,

  Shipping Details:       


:  ThalliumThallium Icon
Tracking Number:  668▪▪▪▪▪▪▪▪▪▪▪

Order Description

:  Damage/slow by 500 enemy damage% and 100% speed over 3 seconds.

Shipping Method

:  High Priority/Fragile

Order Details

:  She shouldn't notice.
For questions and complaints, please contact our customer service.


Keep in mind that Thallium does not stack, so purchasing more than one is pointless. Best used with a high hit rate to boost chances of triggering.

Character SynergiesEdit

Item SynergiesEdit


The description may be a reference to Thallium poisoning , which is known to be slow-acting, painful and easy to misdiagnose.



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