Standalone Gizmod-family enemy escalation research package. Kill your first biter or spitter to unlock Biter Mutagenesis, then research biter/spitter biomass, speed, damage, swarm quantity, and Apex Strain Evolution rank pressure. 5+1 new techs and an ultimate endgame foe that never quite stays dead.
Mods introducing new content into the game.
dsc.gg/gizmod