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
Hunter and Props combines a game of hide and seek with shooter elements. If you prop, use the WASD keys to move and E to take the form of an item. As a hunter, you use the WASD keys to move and the mouse to aim and shoot.