Home Alone (Anomaly) Ending 4 — Secret Basement Walkthrough & Verified Steps

📖 4 min read · Updated 2026-09-05 · Fact-checked against community wiki & Steam discussions

"How do you get the 4th ending in Home Alone (Anomaly)?" was the single biggest mystery of the genre through early August — but the wait is officially over. Following the Update 4 release on August 12, 2026, Ending 4 is now ✅ VERIFIED. It is a secret lore-based ending tied to the protagonist's brother and the Secret Basement. This guide breaks down the confirmed trigger steps, how it differs from the original three endings, and what Update 5 added. This is an independent fan guide; we are not affiliated with Roblox or the creators.

The Complete 4-Ending Roster

Ending	Title / Type	Key Condition	Outcome	Evidence
Ending 1	Survive the Night (Good)	Sanity > 0 + 100% Chores done	Mom returns proud, allowance paid	✅ Verified
Ending 2	Survive Without Chores (Neutral)	Sanity > 0 + Incomplete chores	Mom sends you back to try tomorrow	✅ Verified
Ending 3	Insanity (Bad Ending)	Sanity drops to 0	Hallucinations, house collapses, run fails	✅ Verified
Ending 4	The Secret Basement (Lore / True)	Unlock basement + discover Brother lore	Secret basement cutscene revealing brother's fate	✅ Verified (Added in Update 4)

How to Get Ending 4: Step-by-Step Walkthrough

Ending 4 does not trigger from merely surviving the shift or ignoring chores. It requires deliberate interaction with the house's hidden lore:

1. Maintain Sanity & Complete Chores Early

Begin your shift (12 AM) by knocking out your mandatory chores immediately. You need high Sanity (above 80%) because exploring and checking anomalies near the basement entrance rapidly drains mental stability if unmanaged.

2. Identify and Screen Visitors Accurately

Monitor the front door CCTV (Update 5 added pan/zoom functionality to make tells easier to spot). Ensure you reject every anomaly by switching off the porch light. If an anomaly slips inside, your Sanity will collapse before you can access the basement.

3. Unlock the Secret Basement Entrance

During the mid-shift window (between 2 AM and 4 AM), locate the hidden hatch leading down into the basement. In Update 4, specific audio and visual prompts trigger when anomalies are dealt with correctly:

Check the hallway and back utility area for the interactable basement lock.
Follow the prompt trail to collect the required key/tool while managing incoming doorbell rings.

4. Uncover the Brother's Lore Clues

Once inside the basement, inspect the notes, drawings, and audio logs scattered around the workbench. These reveal the dark backstory of why anomalies are targeting the household and what happened to the protagonist's missing brother.

5. Survive to 6:00 AM Inside the Basement

Remain in the basement until the shift timer hits 6:00 AM. Instead of the standard Mom-arrival screen, the special Ending 4 cinematic triggers, revealing the true narrative conclusion and awarding the secret achievement badge.

Update 4 & Update 5 Changes (August 2026)

The game evolved rapidly through August 2026 with two massive stable updates:

Update 4 (August 12, 2026):
- Officially implemented Ending 4 and the Secret Basement route.
- Increased visitor spawn frequency for higher late-night tension.
- Added new voice lines and critical bug fixes.
Update 5 (August 19, 2026):
- New Visitors: Added The Nun, The Faceless Man, The Slasher, and The Clown.
- CCTV Overhaul: Added camera zoom and pan controls.
- Visitor Index: Introduced an in-game directory to track discovered visitors and anomalies.
- HUD Polish: Overhauled user interface, new jumpscares, and fixed index loading errors.

FAQs

Is Ending 4 still unverified or fake? No. Before August 12, Ending 4 was unreleased placeholder code. Since Update 4 shipped on August 12, dozens of full video walkthroughs have verified the exact basement steps and cutscenes.

Does Ending 4 require the "Plumber"? No. The Plumber is a standard visitor (who claims a leaky faucet). While checking the bathroom is part of good defense, he is not the exclusive trigger for the basement.

Do I need a Gamepass for Ending 4? No. Ending 4 is 100% achievable on free-to-play accounts. The "Fast Night" gamepass speeds up timers but is not required.

Where can I practice anomaly screening? If you want to train your observation skills without risking Roblox sanity, try our free original browser games: Night Visitor for door-checking, Porch Cam for doorbell feeds, and CCTV Watch for monitor scanning.

Bottom Line

The mystery is solved: Ending 4 exists, is fully playable on Update 4/5, and uncovers the game's deepest lore in the Secret Basement. Follow the steps above, keep your front door secured, and claim the secret ending. Check the full Endings Library for details on all four endings.