Nibiru - Age of Secrets

Adventure Lantern: Nibiru Walkthrough
Detailed walkthrough with screenshots of puzzle solutions.
http://www.adventurelantern.com/Walkthroughs/nibiru/nibiru.htm

Low-Spoiler Guide to Nibiru
Gameplay hints and a walkthrough focusing on interesting things to do in the game, not revealing the plot or puzzle solutions.
http://www.angelfire.com/hero/tjekanefir/nibiru.htm

Nibiru Slider Solution
Step-by-step solution to completing the Nibiru slider puzzle.
http://www.justadventure.com/Walkthroughs/TallyHo/Walkthroughs/NiBiRu/nibirusl.htm

Universal Hint System: Nibiru
Gradual hints for the game, revealing only one spoiler at a time.
http://www.uhs-hints.com/uhsweb/nibiru.php