The objective of the game is to find 3 card/figures with either same or all different: count, color, shape and fill.
I've made a digital version here:
(there will always be three matching cards in this version).
History / background
I really like the concept and rules of the Set™ game. So I made a computer game with similar rules and objective, – but with my own design. (Also checked that game rules are not copyrightable). I also wanted to play it in person with others, – and didn't have a real Set™-game, – so I also printed it as a card game. And personally I also prefer my own card design. As we say: "imitation sincerest form of flattery", and I really encourage people also to get the original one also.