Contents
Underrail Build Encyclopedia by Eidein
Disclaimer
All builds assume you are using Hypercerebrix and Workbenches to craft, and the Large Waist Pack to pass mercantile checks. Other boosts are available but for the sake of approachability I will limit it to just these two. The rest are listed here.
Every build is better with 70 Temporal Manipulation but for the sake of variety I will only apply it when I think it suits. Don't expect to see it on tank builds.
If you have questions about any of the builds ask me here and on the official discord but check the FAQ at the end first.
A
Guns
Pistols
.44 Rapid (Smart or XM) Hammerer
.44 Dexterity Versatility Pistol
.44 Perception/Dexterity Pistol
SMGs
8.6 Muzzled Rapid Steelcat / 5mm Muzzled Rapid Jaguar
Assault Rifles
7.62 Muzzled Rapid Hornet / 9mm AA scoped Rapid Chimera
Sniper Rifles
7.62 AA scoped Rapid Smart Spearhead / 12.7 AA scoped Rapid Smart Harbinger
Shotguns
Tactical Short Vindicator / Short XM Despot
Heavy Guns
LMGs and Miniguns
9mm 100-round Ergonomic Muzzled Ratchet / .44 Slow Starter Ergonomic Destroyer
Fusion Cannon
Re-assembled Fusion Cannon
Other Weapons
Grenade Launchers
40mm Regular Barrel 6-Chamber Grenade Launcher Scope Forward Grip Onager
Chemical Pistol
XAL / Acid and Ice pistol
Dexterity Versatility Chempistol
Energy Pistol
The Stunner
Dexterity/Perception Stunner Epistol
Crossbows
Pneumatic Reloader AA scope Cyclon
Throwing Knives
Melee
Unarmed
Gloves
Pneumatic Bladed Gloves
Knives
Tichrome Electroshock Knife
Swords
Tungsten/Tichrome Straight Edge electroshock Machete / Tichrome Knife (when flurry is on cd)
/ Red Dragon
Spears
Tungsten Electroshock Winged Spear
Sledgehammers
Tungsten Spiked Hammer (for superslam) / Tichrome Electroshock Hammer (for everything else)
Psi
The Original Report, a Psi guide
Tranquility
Muffled Neural Overload filter TC Modulator Headband / Muffled Temporal Distortion filter TM Modulator Headband
Thought Control / Temporal Manipulation
Psychosis
Stable Neural Plasma Beam filter MT Modulator Headband / Stable Neural Electrokinesis filter PK Modulator Headband
FAQ
Why 130 hacking on most builds?
130 hacking allows you to disable security in Arke Powerstation without alerting the bots to your location, getting your hacking to 130 should happen in the last few levels of your build.
Why low lockpicking but high pickpocketing?
Pickpocketing holds a lot more value than lockpicking, with 70 pickpocketing alone you can net roughly 11k charons worth of loot and oddities you might not be able to get otherwise.
Why 105 mercantile with the belt?
Unlocks Hanna’s special merchandise which can often give you 170q components.
Why Tempered Electricity on tank builds?
Tempered Electricity reduces all electrical damage, this includes mental attacks like neural overload or biolocation, the bane of tank builds.
How do I get the stunner and fusion cannon early enough?
Enter the compound at lv10-12, recharge the train, get the map, and leave with the gunslinger. He will give you the Stunner without any work for free.
The Fusion cannon is slightly trickier as you have to enter into the compound, ideally with around 80 effective stealth and avoiding the truesight bots. Eventually you will reach the Fusion Cannon chamber deep within the compound where you will have to pass through a big laser beam puzzle and grab it.
What goggles and armour?
Generally glass cannon crit builds like to get crit goggles and infused rathound gear for the 11-14% crit chance it provides.
Sniper and Broadhead bow are the two builds that use special attack goggles.
Tank builds love quad plated tungsten with a regen vest until you can acquire enough supersteel data to get decent quad plated supersteel.
If I have survival instincts should I always remain on <30% hp?
If you are a glass cannon, yes. Unless circumstances dictate that you will need some hp for the fight.
If you are a tank this isn't necessary as it will get a decent amount of use in natural gameplay.
What factions should I join?
If you use guns or are a tank, join the protectorate. Otherwise join the free drones. Protectorate has the best gun merchant and also offers a selection of high quality vests and plates.
The oligarchs generally don't matter but if you want the easiest time and the best choice of armour then JKK is optimal.
Why expose weakness on the psychosis build?
MT and PK alone struggle to deal with Tchort. So taking expose weakness on the very last levels whilst you are in DC means you can use a crowbar with a blast cap and expose weakness to lower Tchort's mechanical resistance enough to where a double proxied implosion nearly 1 shots him. This was mainly done for the sake of an ironman run but with enough crit plasma beams Tchort will fall eventually.
Is Stoicism really worth 7 will on most tank builds?
Yes Stoicism is the strongest tanking feat by far. The feat when specced offers 36% damage reduction to all damage types. Combined with the drug Aegis and morphine you are almost completely immune to damage.
Are there other crafting boosts I can use?
Yes, many. 5 int builds can use the Lemurian Engineer Suit and 6 int builds can use Phreak’s Remote Control Energizing Glove. You can also use an Underpie or a Jon’s special for a 3 and 5 skill boost respectively. Tchortist belts also boost their respective departments' skill, for example the Electroinvestigative Belt boosts electronics. The Technomedic suit from heavy duty boosts biology and electronics, the boning knife also increases biology.
Why Stealth on tank builds?
Sometimes you want stealth for the most anti-tank friendly places in Underrail. Lunatic Mall alone justifies this and the builds are largely based on my own ironman experiences. If you don't mind hitting the reload button every time a stealthed thought controller manages to cast double dopplegangers on you then you can skip stealth.
Credit
The listed builds are largely my own with some help from Underrail vets for the finer points. Raven gave me the Special attack crossbow build and the Siphoner man build is largely inspired by Harperfan from the forums. Tygrende, known as the crowbar man, helped me with some of the details on the pure sniper build and Sheepherder made the dex hammer build except I adjusted the str so you dont need all-in.