>>15512230
The only way to play the *original* version, on PC, is via an emulator. There are two versions of the game.
PC, X360, and PS3 got the ‘next-gen’ version which was developed by Ubisoft Shanghai.
Xbox, PS2, and GameCube got the original version, developed by Ubisoft Montreal.
The latter is much more of a sequel to Chaos Theory, and features similar game mechanics and level design.
>Note the visibility + sound gauges in the bottom right