From the Stars Without Number Compatible – Alien Database
Armored Skin. Stone Snake’s skin grants the creature Armor 4 against TL 3 or lower weapons.
Slam. The slam of a stone snake can damage TL 3 vehicles and deal normal damage.
COMBAT & TACTICS
Stone snakes are not predators, but grazers. They are not aggressive unless threatened, but they are territorial and consider everything large enough – vehicles are just an example – as a potential predator. A stone snakes attack by slamming the targets with its armored head. When attacking it gains a reach equal to its length. If the target is flying, the stone snake can extend its slamming attack vertically also.
DESCRIPTION
Stone snakes are creatures that measure from 6 to 12 meters. Their skin is covered by extremely hard scales made of silicate compounds similar to Kevlar. The strongest protection is located on the head and the mouth, which the stone snake employs as a slamming weapon. Stone snakes have colors that vary from
dark grey to dull yellow, depending on the environment.
HABITAT
Stone snakes evolve on rocky and dry planets, rich in minerals and crystals, which seem to constitute their main source of food. Volcanic activity seems to attract these creatures, probably due to the abundance of nutrients that an eruption produces.
BIOLOGY
Stone Snake’s biology is very rare to find and is considered very exotic. Xenobiologists consider this life form a sort of silicon-based “herbivore”, but instead of feeding on plants, it feeds on complex minerals and crystals. In addition, it seems that stone snakes are fond of the silicon-based life form known as Ooze,
and the stone snake has displayed complete immunity to the harmful effects of these primitive life forms.