Hazard Protocol
Race the horde in a 1–4 player top-down co-op horror shooter. Complete objectives, improvise with scarce supplies, rescue downed teammates, and reach extraction through tense 10–30 minute missions whose pressure adapts to your squad.
About
ENTER THE QUARANTINE
Hazard Protocol is a 1–4 player top-down cooperative horror shooter built around short, tense missions. Enter abandoned hospitals, research facilities and quarantined city streets as an outbreak-response operative. Complete the objective, keep the squad alive and reach extraction.
FIGHT AS A SQUAD
Stay together, cover different angles and rescue downed teammates before the infected overwhelm your position. Special infected leap, spit acid, ambush and break apart a careless formation. Ammunition, grenades and medical supplies are limited, so every mistake follows the squad into the next room.
OBJECTIVES UNDER PRESSURE
Restoring power is only the beginning. Unlock sealed doors, find access cards, operate keypads, redirect steam and solve environmental mechanisms while the horde closes in. Some objectives split the team; others force everyone to defend the same exposed position.
A DIFFERENT RESPONSE EACH TIME
Encounter pacing adapts to the squad's condition. Enemy pressure rises and falls, selected layouts and routes change, and resources do not always appear in the same place. Four difficulty levels change enemy health and damage without turning the mission into a different game.
BUILD YOUR OPERATIVE
Choose an operative and their default kit, or customize your primary and secondary weapons from unlocked equipment. Earn account XP after every mission, unlock new side-grade weapons and passive perks, and equip up to three small bonuses. Progress expands your options without replacing teamwork or skill.
KEY FEATURES
Solo play or 1–4 player online co-op
Fixed-perspective top-down tactical gunplay
Adaptive wave pacing with swarming and special infected
Environmental objectives and puzzles completed under pressure
Short 10–30 minute missions with layout and encounter variation
Primary and secondary loadouts, operatives, perks and post-match progression
Easy, Normal, Hard and Nightmare difficulty
Blood, dismemberment and reactive combat feedback
Full controller support and cross-platform multiplayer
Screenshots
System requirements
Minimum Requires a 64-bit processor and operating system OS: Windows 10 version 21H1 or later (64-bit) Processor: Intel Core i5-9600 or AMD Ryzen 5 3600 Memory: 8 GB RAM Graphics: NVIDIA GeForce GTX 1660 Ti 6 GB or AMD Radeon RX 5600 XT 6 GB DirectX: Version 11 Network: Broadband Internet connection Storage: 8 GB available space Additional Notes: SSD recommended. Internet connection is required for online co-op only. Recommended Requires a 64-bit processor and operating system OS: Windows 11 (64-bit) Processor: Intel Core i5-12400 or AMD Ryzen 5 5600 Memory: 16 GB RAM Graphics: NVIDIA GeForce RTX 3060 or AMD Radeon RX 6600 XT DirectX: Version 11 Network: Broadband Internet connection Storage: 8 GB available space Additional Notes: SSD recommended. Internet connection is required for online co-op only.
Minimum OS: macOS 12 Monterey or later Processor: Apple M1 Pro Memory: 8 GB RAM Graphics: Apple M1 Pro 16-core GPU or better Network: Broadband Internet connection Storage: 8 GB available space Additional Notes: Metal support and an SSD are recommended. Internet connection is required for online co-op only. Recommended OS: macOS 13 Ventura or later Processor: Apple M2 Pro or better Memory: 16 GB RAM Graphics: Apple M2 Pro 16-core GPU or better Network: Broadband Internet connection Storage: 8 GB available space Additional Notes: Metal support and an SSD are recommended. Internet connection is required for online co-op only.
Minimum OS: Ubuntu 22.04 LTS (64-bit) Processor: Intel Core i5-9600 or AMD Ryzen 5 3600 Memory: 8 GB RAM Graphics: NVIDIA GeForce GTX 1660 Ti 6 GB or AMD Radeon RX 5600 XT 6 GB Network: Broadband Internet connection Storage: 8 GB available space Additional Notes: Vulkan-capable GPU with current NVIDIA proprietary or AMD Mesa drivers. SSD recommended. Internet connection is required for online co-op only. Recommended OS: Ubuntu 24.04 LTS (64-bit) Processor: Intel Core i5-12400 or AMD Ryzen 5 5600 Memory: 16 GB RAM Graphics: NVIDIA GeForce RTX 3060 or AMD Radeon RX 6600 XT Network: Broadband Internet connection Storage: 8 GB available space Additional Notes: Vulkan-capable GPU with current NVIDIA proprietary or AMD Mesa drivers. SSD recommended. Internet connection is required for online co-op only.