I made two board game prototypes to test some of my ideas.
The first game is a game where players move freely on a board and try to find treasures, complete quests and evade dangers. All these actions happens with stacks shared between players. This system is used to create a tension for all the players: the stack can bring negative and positive events for all of them. Each player also has his own stack allowing him to interact with other players.
The second project is a complete redaction of rules for tabletop RPG.