Season 4 — Dinosaur Origin
Everything a player needs to know entering Season 4 of Last Z: Survival Shooter. Faction-colored hero cards, weekly event grid, priority checklist, and an honest Meta Caveats section for the claims that didn't survive verification.
What actually changes
Season 4 (in-game name: Dinosaur Origin) pivots the game world from zombies to dinosaurs. The map is a prehistoric jungle; regular zombies are replaced with velociraptors, boomers with stegosauruses, and the Fury Lord with a dino boss. Three new S+ tier heroes drop across the first six weeks, and three exclusive systems (Hatch of Legends, Trade Hubs, Fossil Album) come with them. The rock-paper-scissors faction meta is refreshed — not overturned — via each new hero's fourth skill.
Low Virus Resistance locks you out of the higher dino levels and their rewards, regardless of troop power. Biotech Lab is now your most important early building. See the tab.