Exploration is key if you want to see everything there is in Cronos: The New Dawn. If you're not relying on the objective markers to get through this adventure, then make sure to leave no note unread, no stone unturned. Thankfully, ND-3576 remem bers everything you look at and pick up, so you don't need to worry about taking notes.
All codes in Cronos are either three to four digits long, meanwhile puzzles focus more on fetch quests that can and should be gradually completed as you're exploring a location in full. Puzzles can unlock new weapon variants, naturally progress the story, or introduce you to the next boss.
