This is the most important part of the game, the area that provides all the excitement and fun. Experienced gamers in our group test each game for the levels of difficulty, game rules, feedback and scores, AI responses, game moves, simulation and all other aspects that establish the gaming experience. The findings and reports from these testers provide valuable input to your developers to fine-tune various game-play aspects before release.

A good example of gameplay testing is the use of Test Flow Diagrams. TFD's model game elements based on a player's perspective. They represent a tester's interpretation of what she expects to happen. Functional testing applies a scientific approach, while gameplay testing is considered more of an "art". This art is formally captured in the design of TFDs.