I get where you are coming from @HelpingRobot , but video games don’t have to match our reality , that is in a video game the world that it takes place in could be flat (even though irl Earth is not flat), space doesn’t have to exist (even though it exists for us in real life), if there are humans the game designer can pick any situation and background story, and the players and their interactions in general in the world can be fully designed.
Originally, back when trem started out as a Quake III Arena mod, aliens were not a part of trem, instead there were “Droids”. Their description was as follows (source of this quote is: http://dl.grangerhub.com/files/downloads/misc/crypt/Tremulous%20concept%20documentation.htm#Droids16 ):
Droid classes are divided up in 3 subclasses: Offense, Defense, and Builder.
The droids have well developed methods of upgrading themselves, to higher biological and mechanical infacstructure. They have a biological system of tissues, organs, and organ systems that seamlessly work together, much like our own. This biological material is taken from hosts, human or animal. The process in which they take host biological matter and integrate it into their own, is called ‘infestation.’
Droids latch themselves to the hosted flesh, and undergo a form of rapid digestion. The targeted flesh is solidified quickly, and taken in by the organ. In this organ, many nano-bots take the protein material and circulate it around the droids body. The nano-bots responsible for healing, starts to create cells at an extremely fast pace. The droid itself literally gains mass from the target it is infesting, with blood vessels and different organs gaining different types of mass.
The user is given a choice of classes to upgrade to with each infestation. Therefore the classes are conceptually organised in a tree structure.
The nano-bots responsible for the physical changes that are undergone during infestation, are also capable of effectively healing the droid. Damaged biological tissues are repaired through artificial protein synthesis, in only a moderate length of time.
Also, I believe that Murnatan deviated from the concepts of aliens and other plannets with having their “non-human” team being mamal like creatures from Earth.
With that said, what specific benefits might Trem gain from moving away from the alien and space travel themes (not a rhetorical question)?
I should say that I think that more can be expanded upon the current theme of Trem for the game play. That is, what if multiple game servers were a part of the same match? Each server might have a dedicated “sub-map”, like a spaceship or some setting on some planet. There would be a way to travel between the servers, and the servers would have some kind of interactions with each other. Perhaps to win a match, a team must conquer each of the servers, and conquering a server might give strategic aadvantages to help with conquering the other servers. The “sub map” of each server would be able to change once the match is over, that is, each server doesn’t have to play the same submap 24/7.