Alien Head

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Alien Head
Alien Head.png
Reduces cooldowns for your skills.
Reduce skill cooldowns by 25% (+25% per stack).
Rarity Legendary
Category Utility
ID 50
Stats
Stat Value Stack Add
Cooldown 25% Exponential +25%

The Alien Head is a returning item in Risk of Rain 2. A player holding the Alien Head has all their skill cooldowns moderately reduced.

Notes[edit | edit source]

  • The cooldown reduction from the Alien Head is calculated before the flat reduction from the Purity.pngPurityBgLunar.pngPurity.pngReduce your skill cooldowns by 2 seconds. You are unlucky.
    All skill cooldowns are reduced by 2 (+1 per stack) seconds. All random effects are rolled +1 (+1 per stack) times for an unfavorable outcome.
    . For instance, if a player holds 1 Alien Head and 1 Purity, a skill that would normally take 4 seconds to cool down would instead have a 1 second cooldown.

Math[edit | edit source]

The skill cooldown is determined by the formula cooldown * 0.75 ^ amount

Amount 2s 3s 4s 5s 6s 7s 8s 10s 12s % reduction
1 1.5 2.25 3 3.75 4.5 5.25 6 7.5 9 25%
2 1.13 1.69 2.25 2.81 3.38 3.94 4.5 5.63 6.75 43.8%
3 0.84 1.27 1.69 2.11 2.53 2.95 3.38 4.22 5.06 57.8%
4 0.63 0.95 1.27 1.58 1.9 2.21 2.53 3.16 3.8 68.4%
5 0.71 0.95 1.19 1.42 1.66 1.9 2.37 2.85 76.3%
6 0.53 0.71 0.89 1.07 1.25 1.42 1.78 2.14 82.2%
7 0.53 0.67 0.8 0.93 1.07 1.33 1.6 86.7%
8 0.5 0.6 0.7 0.8 1 1.2 90%
9 0.53 0.6 0.75 0.9 92.5%
10 0.56 0.68 94.4%
  • The cooldown reduction cannot reduce skills' cooldowns below 0.5s.

Graph[edit | edit source]

The following graph shows the effect on a 10 second cooldown.

Alien Head Graph (Labeled).png

Lore[edit | edit source]

Order: "Alien Head"
Tracking Number: 76******
Estimated Delivery: 07/13/2056
Shipping Method:  High Priority/Biological
Shipping Address: Solomon, ???, Backwaters, Mars
Shipping Details:

Important sign from the spirits. Passed down for many generations. Must be used for high noon ritual to ward off sickness and fatigue. Must be kept cool or will rot. Helps energize the kinfolk and can be used for extra human strength and agility. Important.