In Once Human, mods are buffs that can be attached to your weapons and gear sets to increase their effectiveness and give them certain boosts. You can’t craft mods in the game. You’ll need to obtain them by looting weapons and gear crates in the settlements and outposts. You can also complete securement silos and defeat bosses on harder difficulty to obtain Gold mods.
Weapon mods are obtainable by defeating bosses with potential drops in LEA Research Lab, weapon crates and also winning Prime Wars. Gear/ Armor mods are obtainable by clearing securement silos and through looting gear crates.
In this post, I’m going to list down the weapon mods which I’ll categorize based on the build (burn, frost vortex, bull’s eye, etc) while the gear mods will be categorized based on the armor type (helmet, mask, tops, etc.)
I do my best to update and complete the list as I go but please feel free to get in touch with me if you have any questions or feedbacks or just to notify of any errors you find here. I would really appreciate it. Thank you!
Weapon Mods
Burn
To obtain Burn build mods, you need to defeat Ravenous Hunters at Monolith of Greed in the Dayton Wetlands region.
| Mods | Effects |
| Blaze Blessing | Killing enemies affected by Burn restores 5.0% HP. |
| Burning Wrath | Triggering Burn has a 25.0% chance to grant an additional Burn stack. |
| Embers | Buff effect continues, but Burn stacks are reduced by 50.0%. |
| Flame Resonance | Burn maximum layers +2, Burn duration reduced by 20.0%. |
Frost Vortex
To obtain Frost Vortex build mods, you need to defeat Ravenous Hunters at Monolith of Greed in the Dayton Wetlands region.
Other potential drop locations are LEA Research Lab, weapon crates in Red Sands or Blackheart region, and win any prime wars.
| Mods | Effects |
| Cryo Blast | Frost Vortex can inflict enemies with the Frostbite status. For enemies in the Frostbite status, Vulnerability +4%, Movement Speed -10%. |
| Frostwave | Frost Vortex deals increasing damage over time, up to a 60.0% DMG increase. |
| Frosty Blessing | Frost Vortex disappearing restores 10.0% HP. |
| Vortex Multiplier | Get an additional Frost Vortexes, +10.0%. DMG boost to all frost Vortexes |
| Vortex Overcharge | Frost Vortex deals more damage as more enemies are affected, up to a 60.0% DMG increase. |
Power Surge
To obtain Power Surge build mods, you need to defeat Treant at Gaia Cliff Monolith in the Broken Delta region.
| Mods | Effects |
| Shock Diffusion | Hitting the Weakspot of enemies affected by Power Surge triggers Power Surge on 2 other enemies within 5 meters. |
| Shock Rampage | Each time Power Surge DMG is inflicted, the Power Surge Trigger Factor increases by 10.0% (based on Weapon Trigger Chance), lasts for 5 seconds, and can stack up to 3 times. |
| Static Shock | Power Surge duration reduced by 50.0%, but Power Surge DMG increased by 20.0%. |
| Surge Amplifier | When you deal Power Surge DMG it gets a +5.0% DMG boost for 3 seconds. This can be stacked up to 3 times. |
Unstable Bomber
To obtain Unstable Bomber build mods, you need to defeat Treant at Gaia Cliff Monolith in the Broken Delta region.
Other potential drop location is at LEA Research lab.
| Mods | Effects |
| Bombardier Souvenir | Triggering Unstable Bomber reloads 15% of the Magazine. |
| Decisive Blow | When you hit a Weakspot the enemy takes +15.0% Unstable Bomber DMG for 3 seconds. |
| Eruptive Bomber | Enemies affected by Unstable Bomber 5 times make them explode and grant +20.0% DMG to the last hit. |
| Pinpoint Strike | Unstable Bomber deals +20.0% DMG when it hits only one enemy. |
| Reckless Bomber | For every 1% Crit Rate, Unstable Bomber DMG +0.5%. |
| Super Charged | When you activate Unstable Bomber it gets a +5.0% DMG boost for 5 seconds and can be stacked up to 10 times. |
The Bull’s Eye
To obtain The Bull’s Eye build mods, you need to defeat Arachsiam (Spider boss) at Mirage Monolith in the Iron River region.
| Mods | Effects |
| Fatal Flaw | Bull’s Eye triggers incrementally boost weapon damage by 6% for 20 seconds, accumulating up to five times |
| Hunters Perk | Eliminating Bull’s Eye-marked targets provides 6% damage reduction for 10 seconds, stacking up to five times |
| Recover Mark | Upon defeating an enemy inflicted with The Bull’s Eye status, HP +15%, Stamina +25%. |
| Targeted Takedown | Increases critical hit chance by 20% against enemies marked by Bull’s Eye |
| Vulnerability Amplifier | Enhances the vulnerability effect of Bull’s Eye by 8% on marked targets |
Fast Gunner
To obtain Fast Gunner build mods, you need to defeat Arachsiam (Spider boss) at Mirage Monolith in the Iron River region.
| Mods | Effects |
| Cowboy | Reloading after depleting a magazine increases the Fast Gunner trigger factor by 100% (based on the Weapon’s trigger chance) for 5 seconds. Achieving maximum stacks of Fast Gunner extends the duration of this effect by an additional 5 seconds. |
| Double Gunner | Activating Fast Gunner before swapping weapons enhances the new weapon’s damage by 0.3% for its initial 600 rounds |
| Fast Refurbish | Fast Gunner activation boosts reload speed by 30% for 5 seconds, with effects stacking up to three times |
| Lasting Fortification | Increases Fast Gunner’s maximum stacks by 1 and enhances the damage bonus by 5% per stack |
| Precision Rush | Sustained fire during Fast Gunner progressively improves accuracy and weakspot damage up to 60% over 3 seconds |
Fortress Warfare
To obtain Fortress Warfare build mods, you need to defeat Arachsiam (Spider boss) at Mirage Monolith in the Iron River region.
Other potential drop locations are LEA Research Lab, weapon crates in Red Sands or Blackheart region, and win any prime wars.
| Mods | Effects |
| Durable Territory | Upon defeating an enemy, extends the duration of Fortress Warfare by 5 seconds, up to a maximum of 5 extensions per instance of Fortress Warfare. |
| Final Territory | Upon the end of Fortress Warfare, Weapon DMG +10%, Movement Speed +10%, lasting for 10 seconds. |
| Portable Territory | After leaving Fortress Warfare, the status will remain for 2s. |
Bounce
To obtain Bounce build mods, you need to defeat Rabizex (Shadow Hound) at Monolith of Thirst in the Chalk Peak region.
| Mods | Effects |
| Bounce Rampage | Bounce damage escalates by up to 60% based on the number of targets hit |
| Not Throw Away Your Shot | Bounces that hit allies cause no damage and return 1 bullet to the magazine |
| Precision Bounce | Increases Bounce damage by 10% and prioritizes hitting weakspots |
Shrapnel
To obtain Shrapnel build mods, you need to defeat Rabizex (Shadow Hound) at Monolith of Thirst in the Chalk Peak region.
| Mods | Effects |
| Long-Range Laceration | Reduces Shrapnel’s damage falloff due to distance by 50% |
| Obliterate | The more parts hit by, the higher the Shrapnel DMG. For each part hitting by Shrapnel, Shrapnel DMG +15%. |
| Shield Breaker | Enhances Shrapnel damage against shielded enemies by 60% |
| Shrapnel Carnage | Doubles the chance of Shrapnel hitting weakspots and boosts weakspot damage by 25% |
| Shrapnel Smash | Each Shrapnel trigger grants a 1% Crit Rate for 2 seconds, stacking up to 20 times |
Armor Mods
Helmets
For Helmet mods, clear the Securement Silo ALPHA in Chalk Peak region. It’s recommended that you go for Hard or Pro mode for Gold mods.
| Mod | Type | Stats |
| Deviation Expert | Fire Rate Status DMG | Range -25%, Fire Rate +10%, Status DMG +20% |
| Elemental Havoc | Conditional Elemental DMG | Elemental DMG +10%. When HP is above 90%, 10% additionally. |
| Fateful Strike | Crit Rate | Cannot deal Weakspot DMG. Crit rate +10% and Crit DMG +30% |
| First-Move Advantage | Conditional Crit Rate Crit DMG | After reloading, Crit Rate +10%, Crit DMG +20% for 2s |
| Mag Expansion | Magazine Capacity | When the magazine is empty, Magazine Capacity +30% |
| Momentum Up | Fire Rate Weapon DMG | Fire Rate 10%+ for the first 50% of the magazine and Weapon DMG +30% for the next 50% of the magazine |
| Precise Strike | Weakspot DMG | Hitting Weakspots grants +12.0% Weakspot DMG for 3 seconds, up to 3 stacks |
| Work of Proficiency | Status DMG | Reloading an empty mag grants 10% Reload Speed and +15.0% Status DMG, lasting until the next reload |
Masks
For Masks mods, clear the Securement Silo EX1 in Chalk Peak region. It’s recommended that you go for Hard or Pro mode for Gold mods.
| Mod | Type | Stats |
| Blaze Amplifier | Burn | Every stack of Burn grants +3% Psi Intensity DMG. |
| Retrusion Explosion | Burn | Crit DMG +40% for enemies with Burn. |
| Lingering Frost | Frost Vortex | The longer the duration of Frost Vortex, the higher the Frost Vortex Final DMG, up to +60%. |
| Obliteration | Frost Vortex | The more enemies inside Frost Vortex, the higher the Ultimate DMG of Frost Vortex, up to 60%. |
| Thunderclap | Power Surge | After triggering Power Surge 20 times, the next hit summons Celestial Thunder (Shock DMG of 200% PSI Intensity). |
| First Electrocution | Power Surge | For enemies without Power Surge status, Power Surge’s Ultimate DMG +30%. |
| Point Detonation | Unstable Bomber | When Unstable Bomber hits only one enemy, Unstable Bomber Final DMG +25%. |
| Explosive Shrapnel | Shrapnel | The 20th Shrapnel is explosive and deals +300% DMG with guaranteed critical hit. |
| Shrapnel Carnage | Shrapnel | The chance of Shrapnel hitting Weakspots is increased by 100.0%, with Weakspot DMG +25.0%. |
| Gunslinger | Fast Gunner | When in Fast Gunner status, Weakspot DMG +30%. |
| Break Bounce | Bounce | When a bullet hits an enemy with HP above 50%, the bullet’s Ultimate DMG +50%. |
Gloves
For Gloves mods, clear the Securement Silo SIGMA in Broken Delta region. It’s recommended that you go for Hard or Pro mode for Gold mods.
| Mod | Type | Stats |
| Crit Amplifier | Crit Rate, Crit DMG | Crit Rate +10%, Crit DMG +15%. |
| Crit Boost | Status DMG | Crit Rate +15.0%. |
| Elemental Overload | Elemental DMG | Element DMG (Blaze, Frost, Shock, Blast) +18%. |
| Lifeforce Boost | HP | HP +12%. |
| Melee Amplifier | Melee DMG | Melee DMG +20% |
| Munitions Amplifier | Weapon DMG | Weapon DMG +15.0%. |
| Status Enhancement | Status DMG | Status DMG +20.0%. |
| Weakspot DMG Boost | Weakspot DMG | Weakspot DMG Boost +25%. |
Top
For Top mods, clear the Securement Silo THETA in Broken Delta region. It’s recommended that you go for Hard or Pro mode for Gold mods.
| Mod | Type | Stats |
| Critical Rescue | Defense | DMG Reduction 20% and Healing Received + 20% when HP is below 30%. |
| Enduring Shield | Defense | When out of combat, gain 1 stack of Safe Haven every 5s. Effect can stack up to 5 times. With every 5 damage received, remove 1 stack of Safe Haven to get 8% shield for 3s. |
| Head Guard | Defense | When HP is above 70%, the head area is no longer a weakspot. |
| Head-on Conflict | DMG Reduce | Having enemies within 7 meters around you grants a 10% DMG Reduction. Taking melee DMG from enemies grants an extra 10.0% DMG Reduction for 5 seconds. |
| Healing Fortification | Defense | When using a healing shot, DMG Reduction 40% for 2s. |
| Quick Comeback | Defense | When using a healing shot, Movement Speed +20% for 2s and refill the magazine from the inventory up to 100%. |
| Rejuvenating | Conditional | When HP is above 60%, a kill recovers 15% lost HP. |
| Resist Advantage | Defense | When out of combat, gain 1 stack of DMG Reduction 5 every 10%. Effect can stack up to 5 times. 1 stack is removed when hit. |
| Status Immune | Defense | When HP is lower than 60%, purge all Deviated State (cooldown: 15s). |
Bottom (Pants)
For Bottom mods, clear the Securement Silo PSI in Red Sands region. It’s recommended that you go for Hard or Pro mode for Gold mods.
| Mod | Type | Stats |
| Bullet Siphon | Weapon DMG | Weapon DMG +5%. Every 5 bullets consumed in the magazine grants +4% Weapon DMG, capped at 20%. |
| Deadshot | Crit DMG | Each Crit Hit by non-melee weapons grants +5% Crit DMG, up to 45%. The effect is removed upon the next reload. |
| Melee Momentum | Conditional Melee DMG | Killing with melee attacks restores 30.0% of Max Stamina and grants +20.0% Melee DMG for 8 seconds |
| Precision Charge | Conditional Elemental DMG | For every 10% Weakspot hit rate of the previous magazine, Elemental DMG +4%, up to 24%, lasting for 10s. Reloading resets the calculation |
| Reload Rampage | Conditional | Killing 2 enemies refills 2 bullets from inventory (no more than half of the mag), and grants +10.0% Weapon and Status DMG, lasting until the next reload |
| Status Amplification | Status DMG | When the magazine is empty, Status DMG +10% for 12s (up to 3 stacks) |
| Three Strikes | Conditional Weakspot DMG | For the first three hits after reloading (not exceeding 50% of magazine capacity), Weakspot DMG +30%. |
| Unstoppable | Conditional Weakspot DMG | Weakspot DMG +10% when a bullet hits a target more than 20m away. For every additional 1 meter away from the target, Weakspot DMG +1% up to 20%. |
Shoes
For Shoes mods, clear the Securement Silo PHI in Iron River region. It’s recommended that you go for Hard or Pro mode for Gold mods.
| Mod | Type | Stats |
| Covered Advance | Conditional Weapon DMG, Status DMG | Taking no DMG within 4s grants +20% Melee, Weapon, and Status DMG for 30 seconds. The effect resets when the duration ends. |
| Ferocious Charge | General DMG | Killing enemies within 10m grants +20% Melee DMG, Weapon DMG, and Status DMG for 8 seconds |
| Ruthless Reaper Precision | Conditional, Refill Ammo | After 2 kills, refill weapon magazine from your reserves without reloading |
| Secluded Strike | Conditional, Weapon DMG, Satus DMG | Having no enemies within 7m grants +15% Weapon DMG and Status DMG |
| Slow And Steady | Conditional Weapon, Status DMG | 10% Melee, Weapon, Status DMG. When HP is above 90%, DMG +10% |
