Tremulous

Humans and aliens face each other in a bloody battle in teams in a game that combines the best first-person shooter with RTS.

The achievements in the game allow the aliens to evolve and leave the initial classes: Granger and Dretch. Each annihilation gives humans a number of credits that can be exchanged for weapons and equipment.

One of the main features of Tremulous is the ability to build various structures during the game. There is a total of sixteen, with each serving a specific function (defensive or offensive) and will differ according to species.

Among the alien structures it is easy to find traps and elements to obstruct the passage. The humans are a bit more complex and designed to provide various services: armory, coordinate actions of defensive weapons, heal, and so on.