| ||For this item in other games in series, see Stealth Boy.|
A catchall term for several devices reverse-engineered from captured Chinese stealth armor, Stealth Boys work by generating a refracting light field around its user, making them nearly invisible to the untrained eye. The model seen in Appalachia is the bulkier satchel model, rather than the wrist-mounted RobCo 3001 model. Worn on the waist, and with a smaller battery than later models, it is capable of generating a stealth field around the user for a short amount of time.
Compared to the Stealth Boy found in Adventure mode, the prototype Stealth Boy has a shorter duration, only lasting 20 seconds. The stealth field's effects are disabled if the user attacks.
Rarely found as a random container item during Nuclear Winter matches.