Snap Circuits® Game PlaySnap Circuits This Snap Circuits kit includes more than 20 electronic games and more than 40 STEM projects. Kids will learn basic STEM skills by making dozens of electronic gadgets, sounds, lights, games, and circuits. The set features a full color, step by step instruction book. Build 20 different games with this set, while secretly accidentally learning how circuits work its sort of like hiding spinach in a smoothie, if you catch my drift.