Guide content updated Nov 12, 2026 · Game version: Launch (Nov 10, 2026)

Warhammer Survivors Weapon Evolution Guide

3 steps are needed to evolve a weapon in Warhammer Survivors: max the base weapon, carry its matching passive item, then open a boss or elite chest. Every evolution needs those same requirements. A few recipes add extra rules, and those are covered below.

The short version

Max level weapon + matching passive + boss or elite chest = evolution. For example:

Boltgun Max level

+ Dice Cube Any level → Heavy Bolter Boss chest

Weapon evolution requirements in Warhammer Survivors

1. Max out the base weapon. Level it up until it cannot go higher. That is level 8 for most weapons.
2. Carry the matching passive item. Every evolvable weapon pairs with one passive. For most recipes, owning the passive at any level is enough. 5 recipes need it at max level (listed below).
3. Open a boss or elite chest. Bosses and elite enemies drop the chests that can trigger an evolution. If the weapon and passive are ready, the chest gives you the evolved weapon. You need one chest per evolution.

You can evolve several weapons in the same run. Find the pairing for any weapon in the evolution finder.

• Nothing ready? If no weapon is ready to evolve, the chest gives you a normal weapon upgrade instead.
• The passive stays. Evolving does not use up the passive item; it keeps working for the rest of the run.
• Which enemies count as elite is not spelled out the same way in every guide, but all of them agree that bosses drop evolution chests.

Why evolutions matter: the Extremis Boss

A normal stage lasts 25 minutes. When the timer reaches 25 minutes, an Extremis Boss arrives, and each enemy faction has its own. Most of these bosses can only be hurt properly by specific evolved weapons, so simply stacking upgrades will not get you through. Evolutions are not just a power spike; for most stages they are the way to finish the run.

One launch guide lists which evolution each boss needs. These matchups are not confirmed by other sources yet:

Notice how many of these need a max-level passive. If you are aiming for one of them, upgrade the passive early.

Why didn't my weapon evolve?

Check these in order:

• The weapon is not at max level yet. Check that it cannot be upgraded any further.
• You have the wrong passive. Some passives evolve a different weapon in each universe. The Tape Measure, for example, evolves the Chainsword in 40K and the Grandblade in Age of Sigmar.
• The recipe needs a max-level passive. See the table below.
• The chest was not from a boss or elite. Guides say only those chests can trigger an evolution.
• It is a two-step recipe. Ghal Maraz needs Uskavar the Sunderer first.
• You are using a demo-era recipe. Some older guides list recipes from the pre-launch demo that changed in the full game.

Recipes that need a max-level passive

These are the recipes where a low-level passive will not work. Upgrade the passive all the way first.

Most launch guides agree on all five. A couple of early tables leave the max flag off Gauntlets of Ultramar and Uskavar the Sunderer, so maxing the passive is the safe choice.

Ghal Maraz: the two-step evolution

Ghal Maraz is the only recipe that starts from an evolved weapon. You have to make Uskavar the Sunderer first, then evolve it again.

Stormcharged Warhammer Max level

+ Tactical Rock Max level → Uskavar the Sunderer Boss chest

Uskavar the Sunderer Evolved weapon

+ Null Pendant Max level → Ghal Maraz Boss chest

Both steps need a max-level passive, and each step needs its own boss or elite chest.

Evolutions that unlock characters

The Ghal Maraz chain also unlocks two Age of Sigmar characters. Evolving the Stormcharged Warhammer into Uskavar the Sunderer unlocks Lord-Commander Bastian Carthalos, who then starts every run with Uskavar. Evolving Uskavar into Ghal Maraz unlocks the Celestant-Prime, Hammer of Sigmar, who starts with Ghal Maraz. See all characters and how to unlock them.

Evolutions that add a weapon instead of replacing it

Most evolutions replace the base weapon. These ones are different:

• Ripper Pistol (Frag Grenade + Bandolier): The Ripper Pistol is added as an extra weapon and the Frag Grenade stays in your loadout.
• Side Sponsons (Battle Cannon + Figure Case): Some guides say the Battle Cannon keeps firing after this evolution, so the sponsons add to it. Only some guides mention this.
• Ghost of Rhea (Rope & Grapnel + White Dwarf): Ghost of Rhea is added as an extra weapon and the Rope & Grapnel stays in your loadout.

Evolutions reported to summon a champion

Developer posts shared before launch said some evolutions bring a named champion into the fight. Launch guides have not confirmed the details yet.

• Gauntlets of Ultramar: Reported to summon Marneus Calgar to fight beside you (not if you are already playing as Calgar). This comes from developer posts shared before launch.
• Zangrom-Thaz: Reported to summon Gotrek Gurnisson to fight beside you (no second Gotrek if you are already playing as him). This comes from developer posts shared before launch.

Weapons that work in both universes

Almost every weapon belongs to either Warhammer 40,000 or Age of Sigmar. The developer named two cross-universe weapons, and both have one recipe that works the same on either side:

• Mordant Earth: Nuln Oil + Hourglass.
• Sustained Fire Dice: D6 Dice + Scatter Die.

Passives that work for two weapons

Many passives evolve one weapon in Warhammer 40,000 and another in Age of Sigmar. In 40K runs, the Lightning Bolt evolves both the Storm Bolter and the Crozius Arcanum, so one pickup covers two evolutions. The passive item list shows every pairing, and the 40K vs Age of Sigmar comparison puts the two universes side by side.