I've not noticed the "gamey" flavor in venison like I do in ducks.
But since you do, Try cutting the large end of the back straps in 2-3" steaks and
soaking them in coke-a-cola over-night, Then grill with a garlic butter baste.
And or, back strap and loins baked in iron pot covered with slices of onions and small pieces of diced apples.