Way too hard to do it without a guide. No numerical indicators, everything is shown through minute changes in character art and can definitely be hard to interpret. Some of the worst parts of the game use RNG in the middle of a very unforgiving setting. Original mode is incredibly difficult to get through without making pragmatic sacrifices but easier versions can make let you get your ideal ending.
This all makes the story go unappreciated as it's hidden behind a brutal system that deters casual gamers. The difficulty however makes the story more intense with each situation genuinely causing your heart to race as you get closer and closer to your goal. The game introduces a great deal of ethical concepts and asks you to choose between two evils and the DLC provides opportunities to make your life easier by compromising your own morals.
On sale this game is an amazing bargain and challenge.