Chrome 42+ disables NPAPI plugins like Unity3d plugin.
Copy and paste the following text into your browser: chrome://flags/#enable-npapi and enable the NPAPI plugin.
Or try another browser like Firefox
Warun is a FPS shooter in which you play the role of an elite soldier who ended up in space base. Shoot down hundreds of guards and try to survive the waves as long as possible. Walk with the WASD, shoot and aim with the mouse and use CTRL to duck.