This Game Must be played in FireFox browser or Chrome.
Play Slither.io unblocked - a cool new game spawned from the popular Agar.io game. You requested it and its finally here. Game works best in a Firefox browser.
Slither.io is rated E for everyone.
!!!!Game not loading?? Follow the instructions below!!!
Option 1. Play Slither.io on our private server --> slither-io-unblocked-private-server/
Option 2. How to play using google chrome browser:
Click the Shield icon from the right side of the address bar. Select –> [Load unsafe script]. Chrome will refresh the page and load its content, including any insecure content.
Option 3. How to play on firefox:
In order to play Slither.io on this site you must use a Firefox or IE browser. When you open the game in Firefox you must click the small lock icon in the left of the browser address bar and select the > icon, then select [disable protection for now] .. In Internet Explorer, you must allow all content when asked. The option will appear at the bottom of the page when you open the game.