You get curation if your post is good and you staked GG token on Steem-engine.com A good post with 1000 GG staked in your account will get a 100 upvote from @good.game.

Everyone who stakes GG has a daily chance to recieve 1 SBI.

Finally you'll get 25 GG daily for each 1000 STEEM you delegate to @good.game.