MaxFX is the game engine used to create the Max Payne game. The MaxFX tool kit used to edit and modify Max Payne include:

MaxED - the level editor (imports .lvl, exports .lbd)

ParticleFX - the particle effects editor (exports .rps)

ActorFX - used to weight skins (redundant - use Milkshape 3d)

Rasmaker - used to compile or extract .mpm and .ras files for releasing and editing mods (extracts/compiles .ras, .mpm, .mp2m)

Additional tools required include:

3DSMax 4 - Used to create and export all in-game models, animations, and camera effects (exports .kf2 format)

Milkshape 3d - Used to export characters (skins) and importing existing models for viewing/editing (import/exports .kf2 and .kfs)

Notepad - Used for editing game scripts (.txt, .h)

Max Payne Engine - Breakdown - what can be edited and the tools required