The Ayyliens are a semi-hostile non-playable race introduced by the K'Rakoth mod. Due to their secretive behavior, they are rarely seen in public and do not interact with other races unless doing so benefits them in some way.

Ayyliens have an appearance of nearly identical cow-headed humanoids with large eyes, pink snouts, and short pale fur. Many of them grow horns; their legth, color and shape varies between individuals. They all wear the shirt and trousers from the Hazmat set alongside unique cosmetic hats.

Unlike most non-player races, they can give quests as long as they are encountered as tenants.

Encounters

At the moment the Ayyliens are the only race in the mod with true NPC encounters.

NPCs

Hostile groups of Ayyliens have a small chance to spawn as valid targets during randomly generated NPC quests. They are always equipped with Ray Guns and shortswords.

An unarmed Ayylien can rarely appear as a friendly visitor at the Outpost, seemingly avoiding interactions with others. They can be talked with just like any other NPC.

Tenants

An Ayylien Guard tenant can be summoned by placing a Colony Deed in a room with enough "boxes" of Xeno furniture (all valid objects use the atprk_ufo tag). They have the same equipment as their hostile counterparts and attack any enemy on sight.

Trivia

• Ayyliens are heavily based on the Greys and assorted alien visitor folklore, including cattle abduction and UFO sightings. In the earlier versions of the mod, they used to wear gray Creepling masks, making the connection even more obvious.
• Their species name is a portmanteau of the word alien and the phrase ayy lmao, a humorous way of referring to images of aliens.
• Prior to the 1.5 update, internally to the game code, the Ayylien NPCs were not a true race but rather Humans wearing hazmat suits and cow-like masks.
• Ayyliens are one of the races that do not have a corresponding fossil.