Size: .1-.5 m long
• Acid Blood: see special rules (roll grenade scatter for splatter - Damage
• Parasitic Link with Host: The Embryo develops by stealing genetic
materials from the host, and so its growth is dependent completely on the
host. Once the face hugger has detached the host may experience various
symptoms of the embryos presence: intense hunger, minor chest pain, and
difficulty breathing. Alien Adults and Queens can detect an incubating
embryo by pheromone changes in the host, and will not attack them.
"There's a monster in your chest. These guys hijacked your ship, and they
sold your cryotube to this... human, and he put an alien inside of you. It's
a really nasty one. And in a few hours, it's gonna burst its way through
your rib cage, and you're gonna die. Any questions?" -Ripley (from Alien
Very little is known about the Alien Embryo, primarily because it is such a
small stage in Alien development, and spends relatively little time inside
the host. The Embryo grows from a Zygote, planted deep in the throat or
breathing orifice of the host by a Face Hugger. In humanoids it later
migrates to the host's chest or upper abdominal area. At this time the
Embryo absorbs genetic materials from the host to allow it to grow and
develop. Growth period from Embryo to Chestburster phase is usually more
than a few hours.
The Embryo is vulnerable during this period, and survives by growing quickly
and quietly often unknown to its host. Severe taxation of the host's
strength and endurance, among other bodily processes, will slow the growth
of the Embryo and hold off the Chestburster phase temporarily.