The Nanogenerator requires nine blueprint fragments, four of which can be obtained by getting the Safe from completing the following difficult tasks:
- Fragment #1: Complete Hydro Power Plant in 10 days
- Fragment #2: Complete River Bridge in 10 days
- Fragment #3: Complete Commercial Port in 10 days
- Fragment #4: Complete Eiffel Tower in 30 days
Upon receiving Fragment #3, the remaining 8 fragments may be purchased for 480 city credits.
Nanogenerator blueprints have been spotted in bonus suitcases when purchasing City Credits, specifically #1 (Pack), #3 and #5 (Bag), #7 and #9 (Truck), and #8 (Barge).