Abstract: The invention provides a compact device for selecting the numbers to play in a game of chance, such as a lottery game. The device includes a number generator portion comprising a number wheel having a circumferential edge partitioned into segments, each bearing a different numerical indicia from the field of lottery numbers. A motor is connected to the number wheel so that when the motor is activated by a switch, the number wheel rotates about the motor axis. The number wheel and motor are contained in a housing having a window portion aligned so that only one of the numerical indicia of the number wheel is visible through the window at a time. By repetitive activation of the switch, a series of more or less random numbers will thus be generated. The housing can be configured so that it forms a relatively small, cylindrical barrel, suitable for attachment to a similarly-sized accessory portion such as a pen or flashlight.