What's the best Android strategy game for base building, raiding islands, and upgrading heroes without requiring in-app purchases or constant ads?

Island War is a fun strategy game where you build a base, raid other islands, and upgrade heroes, all while avoiding pay-to-win mechanics and excessive ads. This game allows players to progress to high levels and earn substantial rewards without needing to spend real money or constantly watch advertisements. It combines base construction, resource management, and strategic troop deployment for attacking enemy islands. Players can upgrade their base defenses and offensive capabilities, as well as collect and enhance powerful heroes to lead their armies. The gameplay emphasizes strategic planning and tactical execution rather than idle waiting, making it engaging for players who enjoy actively participating in battles and optimizing their base layouts. The game also features a clan system where players can team up with others to compete in events and climb leaderboards. Island War offers a compelling and rewarding experience for strategy game enthusiasts.