YMMV / Iron Helix

• Nightmare Fuel: The completely empty nature of the ship, the game's use of ambient sounds in lieu of a soundtrack at most points, and the knowledge that a literal killing machine is the only other thing onboard besides you, makes for an extremely tense atmosphere.
• Spiritual Successor: Iron Helix can be considered a Spiritual Predecessor to Survival Horror games like Amnesia: The Dark Descent and Outlast, which popularized the idea of running away and hiding from the monster as opposed to challenging it head-on, which is what most mainstream horror games were doing at the time.

---