Pathogenic / Pathogenic traits and upgrades
Traits & improvements
Traits add to an organelle’s base rarity. Different traits stack; the same trait is not added twice. A Mythic organelle starts at rarity 5, rather than 4.
| Trait | Rarity bonus | Effect |
|---|---|---|
| Cancerous | +1 | At each room finish, a primary Cancerous organelle has a 15% conversion roll. A successful roll converts the nearest eligible organelle of the same category. The target keeps its own base rarity and inherits compatible traits from both. Excitable is dropped if the new organelle cannot support it. Cancerous leaves the source. If no target is eligible, a successful roll removes Cancerous from the source. |
| Ephemeral | +3 | Starts with 10 rooms of life. An upgrade adds 10 rooms to the larger remaining lifetime of the two consumed organelles. Intestine hub fight waves do not consume lifetime. When fewer than 10 rooms remain, the standard recycling DNA reward is removed; extra recycling bonuses can still apply. |
| Eternal | +2 | Cannot be removed from its slot. A conversion can inherit this restriction together with the source and target traits. |
| Excitable | +3 | Only works while overcharged. It can be applied only to organelles that support the trait; the organelle catalogue identifies them. |
Improvements
| Improvement | Effect |
|---|---|
| Adds the Ephemeral trait to the chosen organelle | |
| Destroys an organelle, permanently raising your max HP based on its rarity | |
| Turn a chosen slot into a energy slot +40% overcharge strength slot | |
| Upgrades any organelle to a higher rarity | |
| Converts all equipped weapons into the selected one. Rarities stay unaffected. | |
| Adds the Excitable trait to the chosen organelle | |
| Turn a chosen slot into an turret slot omni slot that accepts both internal and external organelles | |
| Adds the Cancerous trait to the chosen organelle | |
| Strips all prefixes from an organelle | |
| Adds the Eternal trait to the chosen organelle | |
| Turn a chosen slot into a damage slot +40% damage slot |
Effective rarity example
A Rare organelle has base rarity 1. Adding Cancerous (+1) and Eternal (+2) makes effective rarity 4. The chain planner accepts the effective rarity, including these bonuses.
Checked October 3, 2026. Sources & coverage. Unofficial.