This is all based on the size of your arena. A good rule of thumb is to allow for 10 to 15 square meters (about 107 to 161 square feet) per player. This will provide a comfortable playing space for your customers. Our laser tag system  can handle as many vests as you need (some of our customers run 100+ vests, or have multiple arenas sharing there vests), however we find most of our sites have arenas of around 300m2, and between 21-24 vests.