Core Fragments: how builds actually come together
Twelve slots for a whole run. Rarity tells you how strong a fragment is; tags tell you whether it will do anything at all.
Last verified
· Game build 0.184.0.196275
The system, precisely
- Collection slots
- 12per expedition
- Offers per reward
- 3plus redraw and skip
- Post-run currency
- Core Seeds
- Confirmed cores
- 3read from official screens
At a reward point you are shown three fragments and take one. The controls are explicit:
| Input | Action |
|---|---|
TAB | View Core Fragments |
R | Redraw (costs a redraw token) |
ESC | Skip Reward |
Tags decide whether a core does anything
This is the part that separates a working build from twelve wasted slots. Some fragments are self-contained. Others only fire when you already hold a source of a specific tag.
The clearest confirmed example is the Toxic-Drone Core. It carries the tags Toxic Fog Drone and reads: "When Toxic Fog damages an enemy, summons 1 temporary Drone for 20s. It has 50% Drone stats. Cooldown: 30s."
So the pick order that works is:
- Early slots: take fragments that stand alone and set a tag direction. A Drone core, a Toxic Fog core.
- Middle slots: take fragments that key off tags you now hold.
- Late slots: take raw numbers, or redraw for the combination piece you are missing.
Confirmed cores
| Core | Rarity | Tags | Effect |
|---|---|---|---|
| Retaliation Core | Green | — | Gain 1 Retaliation Guard every 10s, up to 1 stack. When taking damage, consume 1 Guard to reduce damage taken by 25% and deal 400+200% weapon DPS as retaliation damage to enemies within 4m of the attacker. |
| Drone EMP | Purple | Drone | Drones are equipped with EMP bombs that deal 300 damage and disable elite and boss enemy abilities for 6s. Cooldown: 15s. Sector Overlords are immune to this effect.This fragment was flagged as granting TWO Core Seeds after the Expedition ends. |
| Toxic-Drone Core | Red | Toxic Fog Drone | When Toxic Fog damages an enemy, summons 1 temporary Drone for 20s. It has 50% Drone stats. Cooldown: 30s.A combination core — it requires both the Toxic Fog and Drone tags to do anything. |
How to read a core card in five seconds
- Frame colour — rough power tier.
- Tag icons at the top — does this need something I do not have?
- The numbers in colour — the game highlights the values that scale (damage, duration, cooldown).
- Stack count —
0 → 1/1means this is capped at one. It will not scale by taking it again. - Immunity clauses — Drone EMP's "Sector Overlords are immune" is the difference between a boss tool and a trash-clear tool.
Frequently asked
How many Core Fragments can you collect?
The Core Fragment Collection screen shows 12 slots. That is your budget for a run.
What are Core Seeds?
A currency granted after an expedition ends. Some fragments explicitly grant extra — one observed offer stated it gives two Core Seeds at the end of the Expedition.
What is the best core in Pax Autocratica?
There is no published core list, so any ranked tier list is guesswork. What is verifiable is the structure: rarity sets power, tags set whether a core functions at all.
What do the colours mean?
Green, purple and red frames have been observed on offers, in ascending visual prominence — consistent with a common / rare / top-rarity ordering. Multiverse has not published a rarity table.
Read next
- Core database — Every confirmed core with its source
- Weapon stats — What the cores are modifying
- Expeditions — Where cores come from