SimplePlanes invites players to explore their creativity by designing diverse aircraft, ranging from sleek fighters to imaginative constructs like dragons and space stations. Each design impacts flight dynamics, influenced by weight and thrust, creating a realistic flying experience. Players encounter real-time damage during flights, adding an element of risk and excitement. The game features a sandbox mode for limitless experimentation and engaging challenges, such as landing on carriers and avoiding missiles. Users can personalize their planes, share creations, and access tutorials that deepen their knowledge of aviation concepts.