Virus Simulator 2021

WASD (Or arrows) - Move
E - Interact
The virus can climb walls if you go towards it!

You can click on icons by clicking them, for example, the Tutorial icon. But you cannot interact with locked icons. After the virus spawns, you can unlock an Area by finding your way to its sprite moving the virus, and clicking E while the Virus is close to it. After unlocked, interact normally.