Usability 
Moonbase.mobi is a real-time, online multiplayer strategy game. The goal is to develop a Moonbase and compete with other players to dominate the Moon. You need to manage your Moonbase efficiently and build an army to protect yourself and conquer other bases.
Moonbase.mobi is Facebook app that can also be played on most mobile phones with a browser and an Internet connection. Facebook Connect is used for authentication so a Facebook account is required to play.