Ok, to be fair, it’s not the reed switches fault. They get put into situations that are far less than ideal for them to live in their glory. Yes, they can be very reliable in well-defined environment like a reed relay and or other well controlled switching equipment, but put them in an uncontrolled environment of a live escape game, then we have problems.
The escape game industry has made great use out of small development platforms like Arduino and Raspberry Pi. The biggest problem with them for entry level users is that you need to build a support board, or rig up wires and prototype boards to control the world around them, unless you are lucky enough to find the perfect "shield" for your application. Anidea Engineering has created the AEI FX300 to address many of these problems. It is a ready to go prop controller targeted for the escape game industry. It is everything you need to control the game, and reward, for many small to medium sized electronic props.