1. Create a Cisco NetCad account at Cisco Network Academy
2. Login to registered netcad account.
3. Navigate to resources and download latest version of Cisco Packet Tracer for Linux.
4. Unzip the downloaded file
5. Go back to the folder where you downloaded the file
6. Right click then open terminal
7. Type sudo dpkg -i *.deb
8. Type password
9. Done