I gave it a try.
It works fine on Windows 7 64 bit with AMD Mobility Radeon HD 3650 with Level 3 Shader support.
Few noticable glitches:
- sometimes when clicking on side choices you can see sharp edges of "white fading color". I gues this is due to the maximum size of the shader is too smal.
- you should sah that "he is in final monets" and not "in final moment".
- on last naration just before the end screen you can still see renmants of text from previous naration screen which was shown before the choice screen.

While I haven't tested all the posibilities (went trhough 3 times) I always come to good ending. So it might be a bug or I just chose such paths.

Other than that I must say that it is quite uniqe idea. I haven't played anything like this so far.