Years ago in a lonely cabin high in the mountains my son and I passed the time with a self-made CoRT-card game. It was rather primitive: there were Thinking Situation Cards and Thinking Tools Cards. Both of us were given 10 Thinking Tools Cards, at random. Then you picked one Situation Card and applied an adequate Thinking Technique. The goal was to mention as many aspects you could, then it was the opponent's turn to explore additional aspects of the thinking situation. It was fun!
Now I would invitate you to bring the game further.
In my opinion an essential element of the game is the design of the set of rules. When do you "win" or "loose"? What is "winning" when you think? Should there be penalties for "wrong thinking or non-adequate behavior"? And what kind of penalties? Could it be designed to reflect life, where wrong decisions may lead to damage?
I think the set of rules of the game must induce adequate thinking behavior (Install constructive attitudes and routines).
What could be a concept of a Thinking Tools Skill Game?
Let's design at least three concepts. And let's use deliberate and structured thinking.....by applying tools.