We are doing some research with regards to simulation style CTF platforms out there and how to best begin to refine GhostRed We have stumbled upon/tried out a few (see below), and would love to know of others you all have enjoyed. Hacknet: http://store.steampowered.com/app/365450/ CTF 365: https://ctf365.com/ CyberCity: https://www.sans.org/netwars/cybercity