Battle: Underlings
Overview

Battling Underlings is the primary way to earn $HERO tokens—the core currency of Onchain Heroes, used in nearly every system in the game (e.g. leveling, remixing, reviving, gacha, and more).
Currently there is no Death Risk associated with battling underlings.
Entry Requirements
Genesis Heroes – Available on Magic Eden or OpenSea
Weapons – Available on Magic Eden or OpenSea
Underling Mechanics

The amount of $HERO earned per run depends on your Hero’s ATK stat. A higher ATK = greater rewards.
ATK is influenced by:
Hero Level – Leveling up increases base ATK
Equipped Weapon – Both weapon stats and sharpness contribute to ATK
💡 Learn more about weapon stats and sharpness here: Weapons
Each Underling battle lasts 6 hours. While Heroes are locked in during this time, $HERO earnings can be claimed at any point throughout the duration.
Earnings Calculations
1. Max $HERO/day
The upper limit of what your Hero can earn per day, based on ATK:
maxHeroPerDay = (ATK × 400) / (20 + Hero Level)
2. Base $HERO/day
Guaranteed 80% of your max, regardless of weapon sharpness:
baseHeroPerDay = 0.8 × maxHeroPerDay
3. Sharpness Bonus
Up to 20% bonus, scaled by your weapon’s current sharpness:
bonusHeroPerDay = 0.2 × maxHeroPerDay × (Sharpness / MaxSharpness)
4. Effective $HERO/day
Your actual daily reward is the sum of base + bonus + daily flat bonus (e.g. 50):
effectiveHeroPerDay = 50 + baseHeroPerDay + bonusHeroPerDay
🧪 Example Calculation
Inputs:
Damage: 210
Hero Level: 10
Sharpness: 5/10
Step-by-step:
maxHeroPerDay = (210 × 400) / (20 + 10) = 2800
base = 0.8 × 2800 = 2240
bonus = 0.2 × 2800 × 0.5 = 280
total = 2240 + 280 = 2520 $HERO/day
➡️ Final Earnings: 2520 $HERO/day
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