Create your own card game with "The highest value wins" rules.
How to play:
Create your deck.
Start a server and let a friend join the game.
Your friends device will download the deck. (Will take some time)
Select a property to gain 1+ on it.
Your opponent can see the picture but not the properties so it is important to be familiar with the properties of all the cards.
Your opponent chooses a property on his card and if it is higher, he gets both cards.
First to get all cards wins.
Do football cards with the number of goals and played matches ...
Do cards with things on with different characteristics ...
Do your pictures with your features ...