Lost Engines / reverse engineering

Apache Longbow

Digital Integration’s 1995 helicopter simulator, released as Apache in the US. Explore its aircraft and battlefields, follow the research, or play the reconstructed game.

Apache helicopter assembled from the original model and textures

Start here

Apache Analysed

Browse the recovered models, fly around the mission maps, and read about the tools and surprises we found while taking the game apart.

Visit Apache Analysed ↗

The full investigation

These viewers and reports document the game’s resources and engine, with the comparisons used to build the C++ reconstruction.

Analysis viewers ↗

Models, terrain, missions, cockpits, artwork, animations, fonts and sound.

Research reports ↗

File formats, engine behaviour and comparisons with the original instructions.

Play Apache C++ ↗

The faithful reconstruction, with builds and source code on GitHub.

Play Apache Redux ↗

Higher resolutions, adjustable field of view, longer detail distances and gameplay improvements.