| Feature | Alpha 4 | Final Game | |---------|---------|-------------| | House layout | Act 1 only (basement + 2 floors) | Full 3 acts + final act | | Neighbor model | Scraggly, more cartoonish | Cleaner, more detailed | | Fear system | Strong & noticeable | Weaker, less impactful | | Final basement | Strange machine | Train puzzle + Mr. Peterson’s past |