It's a costume mod made with the engine
of "Max Payne" game, that simulates the interiors of Moon base
Alpha from the sci-fi series Space:1999; hence the name Payne:
1999. Both Level J (the biggest) and the upper levels were made,
on a project that combines what you see on TV with what is detailed on
the plans. So the goal was to produce a mod that tries to put as much
as it was seen on the series, with what the plans show.
Since Payne 1999 has been an one man project (just one person doing all
research, textures, objects, maps, programming, objects animation, etc.
etc.) don't expect the rest of the levels to be completed in one
month or two.
In order to run Payne 1999 you need
the Max Payne game and then to install the package found in the
The original game Max Payne can now be found at the Power Games
collection, and many times at a cheaper price in the discounts section
or the bargain bin of any software store. The Pc version requires
a minimum of 450 Mhz Processor, 16 MB Direct3D Compatible
Graphics Card and 96 MB RAM but you can always play with the specs, so
you have a slower processor but more memory or better graphics card,
the game can run just fine.
Max Payne was considered Game of the
Year by many magazines and editors; see here
of prizes. There are also console and Mac OS versions of MP. According
to the creators, "both PC and Mac versions of Max Payne can use
mod-files." If you want more information try
MP's home page.