Gem Collector Arena is a fast-paced top-down survival game created in Unity. Players collect gems to reach 100 points while avoiding increasingly dangerous enemies that spawn as the score rises. Using a powerful taser, players can freeze enemies and chain the effect to nearby targets to survive longer. The project was built to demonstrate Object-Oriented Programming concepts including inheritance, polymorphism, encapsulation, and abstraction through gameplay systems such as collectibles, enemy behaviors, player abilities, and game management systems.