game out

verb2

1. •
   To run through scenarios to determine what will happen given certain decisions; to play out possibilities; to examine several ideas to come up with their likeliest end results.

   • In a gathering Cold War atmosphere, American officials are gaming out responses should Russia resort to battlefield nuclear weapons. — 2022
2. •
   (slang) To play games to such an excessive degree that one is unwilling to play more.