no going back?

[Ruesselschnurps]

I'm in Chapter four now and want to go back to get the collectbles I've missed so far but all the doors are closed... :(
So, do I have to restart the game in the end to get the missing collectibles and re-do the puzzles?

[0deersoft]

You can load a specific chapter from main menu. As long as you don't save it manually, you can later on load the previous save to return where you were.

Almost all of the collectibles are in locations where you don't need to solve any puzzles to get them, but for one or two of them you might need to pick up a key or use a code to open a door.

[Laffibob Dongripants]

Originally posted by Ruesselschnurps:

I'm in Chapter four now and want to go back to get the collectbles I've missed so far but all the doors are closed... :(
So, do I have to restart the game in the end to get the missing collectibles and re-do the puzzles?

I normally write notes in my notebook when I play games, especially puzzle games. If you had done it, you would realise it could take less than 20 minutes to get through the game, even from the very start.