Maybe it can be implemented as a reward from getting achievements by playing games, so when we unlock achievements, we can get GAME tokens.

And if we hodl GAME tokens, every month there's a reward of 1 original game we can get(a game from steam or origin or battlenet or uplay or somewhere else). The winner will be randomly picked from people who has GAME tokens, and the more they have GAME tokens, the higher their chance to get that game.