AN ACTIVE INCREMENTAL TOWER DEFENSE

How to Turn Zombie combines incremental progression, tower defense pressure, and direct cursor-based combat.

• Attack cells directly with your cursor

• Defend your central Viral Core

• Harvest Biomass and unlock permanent mutations

• Build powerful upgrade synergies

• Adapt to new mechanics across different organs

• Face increasingly dangerous immune defenses and bosses

BECOME THE VIRUS

You are not fighting the infection. You are the infection.

Take control of a living virus and invade the human body from within. Destroy cells, harvest Biomass, evolve new mutations, and protect your Viral Core as the immune system becomes increasingly desperate to stop you.

DESTROY. HARVEST. INFECT.

Your cursor is not just a pointer — it is your weapon.

Strike cells directly, break through biological defenses, and collect the Biomass they leave behind. But spreading the infection is only half the battle. As the body reacts, antibodies and specialized immune cells begin attacking your Viral Core.

Push the infection forward while defending the very thing keeping it alive.

EVOLVE YOUR VIRUS

Biomass is more than a resource. It fuels a permanent Evolution Tree filled with mutations that can dramatically change the way you play.

Increase your damage, improve Biomass generation, trigger critical effects, create viral constructs, unleash electrical chain reactions, manipulate the battlefield, and combine mutations into increasingly powerful synergies. Choose how your virus evolves.

THE BODY ADAPTS

The deeper the infection spreads, the harder the body fights back. New cells, immune defenses, hazards, and biological mechanics constantly change the battlefield, forcing you to adapt your strategy and evolution.

What works in one stage may not be enough for the next.

INFECT THE BODY, ORGAN BY ORGAN

Each organ is its own battlefield. Progress through different parts of the human body, each introducing its own environment, enemies, mechanics, and biological threats.

The bloodstream is only the beginning.

FACE THE BODY'S STRONGEST DEFENSES

At the end of each organ, the infection faces a powerful biological boss. These encounters combine the mechanics introduced throughout the organ and push your build to its limits.

Your mutations will determine whether the infection survives... or gets eradicated.