Hello Neighbor 2 Achievement Guide

Getting platinum in Hello Neighbor 2 is more annoying than it should be. The achievement list is straightforward, but a few are easy to miss if you don't know what you're looking for. I spent about 14 hours grinding these across two playthroughs, and here's what actually matters. The core progression achievements come naturally as you finish the story chapters. Don't stress about those. The ones people complain about are the collectibles and the optional puzzle achievements. You need to find all the hidden diaries across the nine chapters. There's one per chapter, totaling nine. They're usually tucked behind a movable object or inside a locked room you can only access after solving the main puzzle for that area. The fifth chapter one is the easiest to miss — it's behind a bookshelf that only moves when you pull the correct lever in the previous room, and that lever doesn't trigger visually until you interact with it a second time. I missed it on my first run and had to reload a save from chapter four to go back.

There's also the "Complete every puzzle in under three minutes" achievement. This one trips people up because the timer starts the moment the chapter loads, not when you interact with the first object. Walk straight to the puzzle room without checking your surroundings. On the chapter seven puzzle, I kept getting hung up trying to arrange the furniture pieces in order. Turned out the order didn't matter at all — you just need all three pieces touching the central platform simultaneously. Saves about forty-five seconds per attempt. The stealth achievement requires you to avoid detection for an entire chapter without the neighbor seeing you. The trick most players don't realize is that you can hide in plain sight. If the neighbor is already investigating a noise and walks past you standing still in a corner, he won't trigger a sighting unless you move. Wait for his patrol path to loop back, then advance. Chapter three has the longest patrol routes, which sounds bad, but the intervals between his checks are genuinely long enough to slip through without holding your breath. Downloadable walkthrough PDFs exist for this, but honestly they're outdated for the PC version. The console achievements use different trigger conditions for the diary pickup animation. If you're on PC, just use a streamer's playthrough from early 2025 rather than any guide site. They tend to lag behind patch notes.

One final note: there's no co-op assist for missed achievements, so don't try to carry a friend through a chapter hoping they'll pick up something you missed. The game checks each player individually, and if your partner grabs the diary while you're watching, it doesn't count for you. That's a waste of two hours.