However, FS2004 remains relevant, not just as a nostalgic reminder of the early 2000s but also as a benchmark for realism and simulation quality. Many modern flight simulators still draw inspiration from FS2004, incorporating similar features and mechanics.

Another notable feature of FS2004 was its support for third-party add-ons. The game's open architecture allowed developers to create custom content, including new aircraft, scenery, and utilities. This community-driven approach extended the game's lifespan and attracted a dedicated following of developers and users.

The legacy of FS2004 can be seen in modern flight simulators. Games like Microsoft Flight Simulator 2020 and X-Plane 11 have built upon the foundations laid by FS2004, incorporating even more advanced graphics, realistic physics, and immersive gameplay.