
Cytolytic Pact
AltarTrade toughness for power.
- −25% max HP
- +40% damage
From the Codex
Highly virulent strains often burn out fast, damaging their host before they can spread.
Glass Cannon in the Codex
Every gift has a price
Trade-off Altar Offers
Each Trade-off Altars room shows 2–3 of these 5 bargains. Take one and the rest vanish. Max HP can never drop below 30.

Trade toughness for power.
Highly virulent strains often burn out fast, damaging their host before they can spread.
Glass Cannon in the Codex
Two random traits at once, for a chunk of health.
A change in a genome's sequence. Most are harmless or harmful, and a few help the organism survive.
Fun fact: Flu's RNA polymerase doesn't proofread, so it makes errors constantly.
Mutation in the Codex
A full heal that gets you noticed.
A dormant state where a virus hides inside a cell without making new copies, invisible to the immune system.
Fun fact: Latent HIV reservoirs are the main reason the infection can't yet be cured.
Viral Latency in the Codex
Faster but more fragile.
Small genomes copy faster but offer less protection.
Lean Genome in the Codex
Grab a pile of nucleotides and raise the alarm.
The building block of DNA and RNA: a sugar, a phosphate and a base (A, T, C, G in DNA; A, U, C, G in RNA).
Fun fact: Influenza stores its genes as RNA, so it uses U in place of T.
Nucleotide in the Codex