There are two main ad formats to consider. The first is the single ad format, which is simply just implementing one type, such as interstitial, into your game. The second option to consider is using multiple ad formats in which you have more than one format, such as interstitial and rewarded video ads.
Here are the findings on which game genres see more success with single vs. multiple ad formats.
Single ad format
Genres like adventure, card, casino, casual, and simulation generate higher revenue from using a single ad format of either rewarded video or interstitial ads. Using a single ad format could generate revenue of $2,500 to $4,500 USD a week on average for games in these genres.
Multiple ad formats used
Genres like word, trivia, board, and action generate significantly more revenue on average from using two ad formats: Rewarded video and interstitial. Using multiple ad formats could generate revenue of $4,000 to $6,200 USD a week on average for games in these genres.