66%Strong matchVampire Survivors
98%266k98% positive reviews, Overwhelmingly Positive across 266k reviews·Action Roguelike · Bullet Hell
—Become a nanomachine and defend the human body from viruses and bacteria! How long you can live depends on your efforts.
This is a casual roguelike game where you become nanomachines to protect the human body from viruses and bacteria.
As time progresses, the human body ages and becomes increasingly vulnerable to viruses, bacteria, cancer cells, and more.

Nanomachines come with a power-up feature.
Acquire various weapons and eliminate external threats!
Viruses and bacteria become stronger over time, so strategically upgrade your weapons to stay ahead.

Nanomachine weapons can evolve into extremely powerful “Synthesis Weapons” when specific conditions are met.
Experiment with different combinations and discover them all!

・Focus on collecting experience points first. Start by defeating enemies you can handle.
・Survival is key in the early game. Master the art of dodging and running away effectively.
・Look for items on the map. Don’t miss chances to heal or power up!
・Find weapons that suit your playstyle. Your strategy will change depending on the combinations you choose.
• Actively obtain Synthesis Weapons to gain the advantage!

Anyone is free to stream this game, and no prior permission is required.
If you stream the game, we’ll do our best to share it as much as possible. To make it easier for us to find, please use the hashtag #VirusHunter when posting about it.
Alternatively, you can notify us directly on X (Twitter) at @kenjikatou.
Note: The use of this game for illegal activities, unethical purposes, or anything that violates public order and morals is strictly prohibited.
If you find any bugs in the game, please report them via the Community Hub discussion board.
Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
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The best games like Virus Hunter are Vampire Survivors, FatalZone, Genome Guardian, Yet Another Zombie Survivors, and Net.Attack() - Code or Die!.
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