Xenomorph Egg, Facehugger, Chestburster

Chris Van Deelen


Number Encountered: 1 to thousands
Movement: None (immobile)
AC: (light) 8
HD: 1
Attacks: Special
Damage: Special
Save: L1

Number Encountered: 1 to thousands
Movement: Fast 240’ (80’)
AC: (Light but enhanced due to speed and small size) 5
HD: 1
Attacks:  Special (see description)
Damage: Special (see description)
Save: L1


No. Enc: 1 to thousands
Movement: (medium) 20’ (40’)
AC: (light but enhanced due to size and speed) 5
HD: 1
Attacks: 1 bite
Damage: 1d3
Save: L1

The first stage in their life is that of a large, typically 3’ tall leathery egg that has four petal like flaps on the top. This egg contains the second stage of the creature’s life cycle.  The eggs are quite easy to destroy, but any attack that doesn’t destroy it outright will release the Face Hugger inside. Also note that certain types of attacks might cause an acid spray.            

These eggs can lay dormant for uncounted years, the face hugger in a state of hibernation until something with a life-force approaches it.

When any life-force approaches within 15’ of the egg, the petals open up revealing the interior. If any creature is foolish enough to actually look into the egg, they are subjected to a surprise attack by the ‘face hugger’ stage.

If the face hugger achieves surprise, it can attempt to latch onto the targets face. The creature first must make a successful melee (or ranged attack, if it is jumping) to make the attack. If the attack is successful, the target is allowed a save versus death. If the save fails, the target is rendered unconscious and will remain so for 2d6 hours while the face hugger implants the embryo into the targets chest.

If the save is successful, the target must attempt to fight off the face hugger. It will continue to attempt to latch itself to the targets face, and it will be from that point on strength versus strength check, with the face hugger having a strength equivalent of 16. The only way for a target to keep the face hugger from continuing to attempt to latch onto its face is by killing it, which is a dangerous proposition, because of the acid blood the alien possesses.

If a target is implanted with an embryo, the face hugger will then drop off and die on the spot, having met its only purpose in life.

After this has happened, the target will awaken in 1d4 hours and most of the time will not remember what had happened to it. The target is allowed to make an intelligence check (roll 1d20 and if the roll is under the targets intelligence). If the roll is successful, the target will remember what happened but unless it has knowledge of the Xenomorphs will not realize the danger it is in until it is far too late.

The Embryo will grow in the targets chest and will burst forth in a gory fountain of blood and bone, killing the host in anywhere from 2 hours to weeks after implantation. Typically it will burst forth in 6d6 hours after successful implantation.

This will kill the host, no if ands or buts about it.

If the host knows what has happened, it can attempt to seek out medical aid. Only a skilled surgeon or advanced medical equipment will be able to remove the embryo before it erupts from the host’s chest cavity (the exact nature is left up to the GM in this case).

The newly ‘born’ chest buster appears as a pale snake like creature that has a mouth filled with sharp teeth. If there are no creatures about when it emerges from the host, it will stay with the host, feeding off it until it moltes out of its current form and grows to the full sized adult.

This takes place only after the creature has consumed enough food and if there are other creatures around; it will flee and hide, looking for food to consume to complete its final metamorphosis.

Once the creature has consumed enough food (typically at least 6 hit dice worth of flesh), it will undergo the change, growing to a full sized drone Xenomorph in 3d4 hours’ time.

Chris Van Deelen is the author of the Skirmisher Publishing LLC sourcebook Creatures of the Tropical Wastes sourcebook, co-author of its Wisdom from the Wastelands game supplement and contributor to the 'Sword of Kos: Hekaton' Anthology.