Fortress of the Sun is a video game that combines elements of strategy and action. Players take on the role of a hero tasked with defending their kingdom from invading forces. The game features various levels, each with unique challenges and enemies, requiring players to use tactical skills to succeed. In addition to combat, players can build and upgrade their fortress, enhancing defenses and unlocking new abilities. The vibrant graphics and engaging gameplay make Fortress of the Sun appealing to both casual and dedicated gamers, providing an immersive experience in a fantasy setting.