This word is acceptable for play in the UK dictionary that is being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Capable of being contracted (in various senses).

adj. capable of being transmitted by infection; same as communicable, 1; -- of disease.

Capable of being contracted or acquired: as, contractable diseases.

adj. (of disease) capable of being transmitted by infection

"But even without having earnings or income, an avatar as an entity may still have costs, expectations of service etc- you can divert these rights to the real person holding the subscription credit card, or you can explore the option for virtual entities of any kind, holding some rights, which may even be transferable with the avatar, or shareable, deedable, contractable etc."

infectious   

communicable   

catching    communicable    contagious    transmissible    transmittable