3D Pool Ball
In game design, 'pool' refers to a shared resource system that governs mechanics like mana, action points, or card draws. It creates strategic depth by forcing players to manage limited resources across multiple turns. The pool mechanic introduces tension between immediate gains and long-term planning, as every expenditure reduces future options. Common implementations include deck-building games where cards form a draw pool, or RPGs with stamina pools that limit combat actions. Well-designed pools balance predictability with randomness, ensuring players can plan while adapting to dynamic game states. This system encourages thoughtful play and often becomes the core strategic loop in both digital and tabletop games.