Immortuos Calyx

Once the parasite reaches a host it grows into the host's organs over time, and a high enough infection level can end with the victim turning into an infected entity bearing the host's name and skin. Infection brings both downsides and benefits: the effects are harsher in warm environments and gentler in cold ones, and the host's speed, strength, damage intake and drowning resistance can all be altered. Infection can be slowed or stopped, and an infected entity that is struck can spread the infection through its drops. Two uncommon infected entities, one spawning at sea and one on land, are included.

The mod also adds a Research Facility village building with a Gene Encoder and a Genetic Researcher villager type, plus a gateway that lets players implant genes from other mobs to gain their effects. Contaminated samples remain usable but carry the same downsides. The mod requires Curios API, Fabric API and Trinkets, and it can use Incapacitated, Patchouli and Simple Voice Chat when they are present. Cardinal Components API is bundled inside the mod. It is published for Fabric, Forge and NeoForge, with builds for 1.19.2 and 1.21.1, and it is released under the MIT License as open source.