Zombie Killer - Overkill Protocol

Overview

Zombie Killer - Overkill Protocol is a Steam DLC connected to Zombie Killer. It was prepared by Mayank Singh, published by The Singh Studios, and released on Nov 28, 2025. This page focuses on the store listing, screenshots, price, requirements, and its relationship to the main game rather than presenting it as a normal live-player game.

Store reviews and relationship

Zombie Killer - Overkill Protocol is a DLC, so player-count observations and tracked peak are not meaningful in the same way they are for a base game. The useful signals here are reviews, store recommendations, price, platform support, and the link back to Zombie Killer.

Language and system requirements

Zombie Killer - Overkill Protocol is available in 1 languages including:

4 regional rating boards including usk, dejus, steam germany, and igrs

Recommendations and store value

Zombie Killer - Overkill Protocol has recommendation data pending. Twitch streaming and unit-sales estimates usually belong on the parent game page, while this page is better for checking the DLC, price, media, and store details.

Zombie Killer - Overkill Protocol overview details

Zombie Killer - Overkill Protocol is tracked as Steam Store content with pricing, reviews, packages, media, requirements, and its relationship to the parent app.

Steam Store description

Zombie Killer – Overkill Protocol is a paid expansion for the free-to-play base game Zombie Killer. This content requires the base game Zombie Killer on Steam in order to play. Travel beyond Zombie Island with new battlegrounds, new ways to move, and a powerful ally watching your back. Fight through three extra levels: neon-soaked Tokyo streets, foggy hill roads in northern India, and the dense neighborhoods of Brazil, each with its own atmosphere and combat flow. Jump into the new vehicle system and drive on Indian roads, weaving through abandoned cars and smashing through zombie hordes to rack up kills faster than ever. Unlock a new companion: a cute combat robot that automatically targets and kills zombies around you, giving cover fire while you reload, reposition, or focus on objectives. Keep pushing your high score and survival time as you combine vehicles, weapons, and your robotic partner to dominate the Hall of Fame.

SteamPulse editorial summary

Zombie Killer - Overkill Protocol is listed as a DLC with $6.99. It supports Windows, belongs to Single-player, Multi-player, PvP, Co-op, Online Co-op, Downloadable Content, and Family Sharing, and is associated with Action, Strategy, and Free To Play. Because it is a DLC, SteamPulse focuses on its Store listing, relationship to the parent app, media, packages, and metadata rather than treating it like a standalone concurrency page.

Content descriptors

Zombie Killer - Overkill Protocol contains mature themes including intense violence, graphic depictions of combat, and zombie dismemberment. The game features strong horror elements, blood, and gore typical of zombie shooter games. Players should expect realistic violent acts, bodily injury, and dark atmospheric settings suitable for adult audiences. This DLC does not feature sexual acts, sexual assault/non-consensual sex, BDSM, drug/alcohol abuse, or self-harm.

Support and legal notes

Real questions answered from SteamPulse data, including live players, monthly momentum, review sentiment, regional audience signals, Twitch activity, and current Steam pricing.