It’s like Deal or No Deal with envelopes instead of briefcases: CBS has ordered game show pilot Secret Fortune, which will be executive produced by American Idol and So You Think You Can Dance guru Nigel Lythgoe.

Based on a Wild River Prods. format, Secret Fortune will have contestants choosing from 24 sealed envelopes, each of them containing a check for amounts that varies widely from a buck to a fortune. Eventually, 23 of the envelopes will be destroyed, with the contestant left with the check in the remaining one. Lythgoe is exec producing with Wild Rover’s Phil Morrow.