Development
Falcon's Eye was developed by Jaakko Peltonen, a researcher of neural networks at Helsinki University of Technology, originally as a separate engine, and then grafted onto NetHack. The artwork and sound effects are largely his, with some submissions from users. NetHack's code assumes little about the user interface, telling which dungeon maps and messages to display, but leaves the implementation details to the interface. Peltonen explains that this versatility helped him to create Falcon's Eye, as he did not have to work around a fixed character-based interface.
Falcon's Eye was mostly programmed in C, with some C++ functions. Both SDL and DirectX are used for the graphics and sound in order to make the base code as system-independent as possible.
Since the release of version 1.9.3 in 2001, development of Falcon's Eye has not progressed, with the game based on a now out-of-date version of NetHack. In the interim, at least one unofficial update has appeared in the portage package management system. This level of inactivity prompted the forking of Falcon's Eye to create Vulture's Eye (now just Vulture) which has significant improvements on the original.
Peltonen had planned to add more customization options, allowing users to add their own graphics. As some users reported difficulty in compiling and installing Falcon's Eye, he also wished to simplify this procedure. He also envisions an application for NetHack that allows a user to switch between different user interfaces, similar to software skins.
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