Pete_Bottomley: Each 'chapter' of the game has a timed element but there are some more tutorialised or narrative driven areas that you're able to take at your own pace.
There are two larger areas that are 1 hour in length but you don't need to complete the whole game in one sitting.
Hello Whitepaper! I made some inferences about what you wrote but wanted to confirm accuracy.
1) The game is organized by chapter, and it is impossible to save within a chapter, but completing the chapter enables you to load the following chapter the next time you play (or immediately, of course). So your progress is saved in the form of "how many chapters have you completed". Yes?
2) Other games I have played with that general model had strict isolation within chapters; that is, my actions in chapter one or two would have no visible consequences in chapter five, because each chapter is implemented almost as a different game. Is yours like that?