Above was drafted a quick example of a matching pairs game, mixing both concepts from the original game of matching pairs, and something along the lines of YuGiOh. I didn’t have much of a theme for it, and only the mechanics of it in mind, sadly. The game was point based, with pairs of cards having specific effects to increase or decrease a player’s points. Once all pairs were found, the game ended and the one with the most points won.
Jacky himself had come up with a prototype for a railway game, that reminded me greatly of Mini Metro, by Dinosaur Polo Club. Source. The goal of which was to link two stations using cards that were streaked with different underground railway lines.