How many Yugioh cards are you allowed to place on the field?

There is no set limit to the number of cards you can place on the field in Yu-Gi-Oh! However, there are certain exceptions to this rule. For example, you can only have one face-up Field Spell card on the field at a time, and you can only have one face-up monster on the field in each Main Monster Zone. Additionally, some cards have effects that limit the number of cards you can have on the field.