Accepted story for Race-X

[Mechagodzilla]

No speices is native to Xen, Laidlaw said so.

Correction:
No species have yet been confirmed to be native to Xen.

Also, it is possible that, since Xen is a border world, the combine's universe-to-universe teleportation does not work there.

 

[Puzzlemaker]

Correction:
No species have yet been confirmed to be native to Xen.

Also, it is possible that, since Xen is a border world, the combine's universe-to-universe teleportation does not work there.

Interesting theory...

It would be neat if Race-X are actually the natives for Xen... They seem to match the "Biologicalness" of Xen.

Heck, maybe vortigaunts are also natives that became slaves to Nihilith when he invaded?

Hmm...

Race-Xen!