About Covirus.io

Covirus.io is a virus battle game where you start small and try to become the biggest, most vicious virus on the server. You grow by eating humans and weaker viruses, while bigger viruses try to do the same to you. It runs in the browser with no download, so you can type a name and start right away.

The danger comes from two sides: larger viruses hunting you and sanitizers that will tear your virus apart if you touch them. Staying alive for even five minutes is a real challenge. A settings menu lets you add bots and adjust things like food amount, game size and starting mass, and a shop lets you unlock skins with points you earn.

Covirus.io

covirus.ioCasual

Accumulate mass and consume your enemies to become the mightiest virus that fears nothing in our exciting game.

How to play Covirus.io

  1. Type your name and press Play to drop into the arena as a small virus.
  2. Move around to eat humans and grow your mass.
  3. Run over viruses smaller than you to consume them and get bigger.
  4. Steer clear of larger viruses and sanitizers, which can destroy you.
  5. Split your virus once you have enough mass to catch fleeing targets and climb the leaderboard.

Controls

Move your virus
Mouse
Split your virus (with enough mass)
Space

Tips for Covirus.io

  • Eat humans early to build mass safely before going after other viruses.
  • Only chase viruses that are clearly smaller than you, since bigger ones will eat you.
  • Keep a close eye on sanitizers and never steer into one, as they tear your virus apart.
  • Save splitting for when a smaller virus is close, because split pieces are easier for bigger enemies to eat.
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