Some nice game ideas

Ball games :
Do something new with balls , make new games with your ball so your dog don't get bored. watch your dog , if it is not liking a game then change it to a different one (with same concept) . even if you like that game very much also the dog training won't be successful with a boring games .

Household games:
Use your household items to make new games for your dogs , you can use your household items. you don't have to buy expensive toys for your dog , your presence and love to your dog is more valuable then any other toy, you can make toys for your dogs with old springs , wood pieces etc , you can also use origami and other kind of arts to entertain your dog.

Games with you.

you also play with your dog , don't just make it play and sit back . dogs are very possessive in nature , they need your presence . play games like hide and seek , run and catch kind of games with your dog . train it with love . your dog neednt feel itas a training but a jolly experience.