Mutations Reference Guide

Pathogenic mutations explained: altar drafts, Cancerous and Ephemeral changes after July 22, challenge synergies, and how mutations differ from organelles.

Mutations vs Organelles

Organelles are graftable parts you place on your body; mutations are run-defining rule twists usually offered at altars, level-up drafts, or challenge cards. Pathogenic ships over 120 combined organelles and mutations—treat mutations as strategic commits that reshape how your grafted parts behave for the rest of the run.

Amoeba and Nanobot draft mutations that need placement can be cancelled after launch-week quality-of-life fixes to refund the pick—use that when a draft would break your grid. Virus and Protozoa players lean harder on mutation synergy than Bacteria generalists.

Use this reference alongside the mutations tier list for ranking context and the organelle traits page for passive tags that interact with mutation multipliers.

July 22 Trait and Mutation-Adjacent Changes

Cancerous trait now transfers to the newly cloned organelle—the original loses the trait and stat boost, and only one Cancerous organelle exists at a time unless you pick another from the wild. Clone engines must re-apply Cancerous intentionally.

Ephemeral organelles can be recycled for resources when barely used, reducing inventory clutter after greedy altar picks. Camera zoom sliders and UI text size options help you read mutation descriptions on Steam Deck during drafts.

Lungs enemy telegraphs improved in the same patch, so mutation drafts that demand stationary charging became slightly safer—still respect alveolar dash patterns.

Draft Priorities by Archetype

Artillery Secretor builds want spread control, pierce, bounce, and Overcharge duration mutations before raw percentage damage that lacks tags. Melee Helminth routes prefer reach, lifesteal-on-hit, and block window extenders.

Minion Spore engines prioritize spawn caps, drone duration, and on-kill retriggers. Nanobot tanks draft thorns, reflect, and damage-to-energy converters. Photosynthesis dailies elevate Pseudopod and non-weapon mutations while weapon-centric drafts become traps.

Metamorphosis rerolls organelles each room—prefer mutations that buff categories rather than a single legendary slot you might lose next door.

Altar Etiquette and Common Traps

Do not greed every altar when low on health before a boss gate—some mutation events spawn elite ambushes. Economy mutations that improve shop odds pay off more in Liver and Lungs than duplicate damage rolls before Skin boss.

Challenge mode cards are mutations at the run level: read daily Antibiotics modifiers before assuming your favorite altar package still applies. Seed sharing helps practice specific draft sequences with the community.

Cross-read broken synergies, organelle synergies, and patch history when a previously strong mutation package feels weak after hotfixes.

Frequently Asked Questions

Do mutations persist after death?

No. Mutations reset each run. Permanent power comes from plasmids and unlocks.

Where is the mutations tier list?

See /tier-list/mutations/ for rankings; this page explains systems and draft logic.

Can I cancel a mutation draft?

Amoeba and Nanobot placement drafts can cancel to refund after launch QoL fixes—verify in-game for your pathogen.