Based on your description, are you sure you uploaded the correct version? There is no cremation it it and it doesn't have any gameplay or even any interactivity in it beyond 'play', 'quit' and at one point 'continue'.
Not intending to be harsh about the game, just trying to understand the intention behind it because I find it confusing.
I'm fine with experimentation and I guess I'm OK with games that have no gameplay in them but I think it would be improved if the other components worked better together. Maybe if you replaced the dialogue with something relevant to the situation, even if that also appears as text rather than audio, it might work better. The blue-screen also pulls away from the feelings you are trying to invoke in the viewer. Replacing it with something connected to cremation might help.
If you wanted to develop this idea further, my suggestion would be to give the viewer the illusion that pressing buttons or keys will help them to escape the furnace. Maybe even respond to the inputs by telling the viewer that what they are doing is not helping. That would amplify the feeling of helplessness in the viewer.
