UFO Online is now in open beta and you can get in on the tactical MMO browser battle, by protecting the Earth from extraterrestrials who are out to probe your special place.
I don’t know if there is probing or not. I always assume that when I think of aliens.
Anyway, the game was built using the Unity Engine and contains both soldiers as well as “Skum”. Weapons and performance have been optimized, and an improved interface with “expanded functions like drag and drop and keyboard shortcuts,” have been added.
Hit up gamingo’s link to try your hand at it.