As someone who has been teaching over 30 years, I understand your feeling about these ideas. I have found changing my teaching style to one of being learner focused(what have they learned?) versus teacher focused (let me tell you what I know and you listen) has brought me a higher number of successful students. Not all of my learner focused activities are games, but all require the learners to be engaged and doing something. Thank you for being open minded and possibly using one or two ideas.