The Room 4 Old Sins V15.02.2021 • Direct & Original
| Secret | How to Unlock | Reward |
|--------|----------------|--------|
| Hidden Portrait (in the Library) | Tap the Gold Locket on the portrait wall (after Chapter 4). | Unlocks a gallery of concept art. |
| Developer’s Easter Egg (Main Hall) | Swipe left three times on the grand staircase after completing the game. | Displays a “Thank you for playing!” message with the dev team’s signatures. |
| Phoenix Mode (post‑game) | Free the caged phoenix in the vault (Chapter 5) and then revisit any puzzle; a small fire aura appears. | Purely visual, no gameplay advantage. |
| Challenge‑Mode “Master” Badge | Complete all Challenge puzzles with under 2 minutes each. | Badge in the profile and a new soundtrack (unlocked via Steam). |
Released originally in 2018 for iOS (and later for Android and Windows), The Room 4: Old Sins deviates slightly from the numerical naming convention. While it is the fourth game chronologically, the "Old Sins" subtitle points to a prequel/standalone story. Players step into the shoes of an investigator drawn to a derelict attic in a gloomy English manor. The objective? Find a missing engineer and his enigmatic wife. The Room 4 Old Sins v15.02.2021
The central mechanic introduces "The Dollhouse"—a terrifyingly intricate, multi-story Victorian manor compressed into a single, cursed model. You do not just explore a house; you zoom into the dollhouse to explore rooms within rooms, creating a recursive, Inception-like sense of scale. | Secret | How to Unlock | Reward
| Puzzle | Goal | Solution Steps | Key Items |
|--------|------|----------------|-----------|
| 1‑A: The Broken Clock | Set the clock hands to 3 : 15. | 1. Pull the gear on the left side to expose the hidden dial.
2. Rotate the hour gear clockwise two clicks.
3. Turn the minute gear counter‑clockwise three clicks.
4. Press the reset button – the clock chimes and unlocks the drawer. | Old Pocket Watch (adds 5 % to time‑challenge score). |
| 1‑B: The Stained‑Glass Light | Direct a beam of light to the central rose. | 1. Tap the Mirror #1 and rotate until the red line aligns with the top edge.
2. Adjust Mirror #2 to bounce the beam downwards.
3. Slide the Prism left to split the beam, then rotate the Second Mirror to merge them at the rose.
4. The rose glows, revealing a secret compartment. | Silver Key (opens the Library door). |
| 1‑C: The Magnetic Box | Retrieve the hidden diary page. | 1. Activate the magnet (press‑and‑hold).
2. Drag the magnet across the glass, pulling the metal ball toward the lower right corner.
3. The ball pushes aside a loose panel; tap it to extract the diary page. | Diary entry: “The night the fire started…”. | Released originally in 2018 for iOS (and later
The story is told through scattered notes and the environment itself. It is a tragic tale of obsession and the corrupting influence of the Null element. Without spoiling specifics, the narrative explores the collapse of a marriage under the weight of scientific hubris. It is darker and more personal than the globe-trotting adventure of the third game. The dollhouse setting serves as a metaphor for the characters being trapped in a game they cannot control.