There are a total of 23 collectibles in the narrative puzzle game Letter Lost: 10 Lost Letters, 5 Commemorative Stamps, and 8 Island Postcards. Finding every single one is mandatory for unlocking the "Special Delivery" achievement and witnessing the game's true, canonical ending. This guide details all collectibles locations in Letter Lost, broken down by area to ensure you don't miss a single secret on your journey.
Before You Begin: Unlocking Key Areas
Not every location is accessible from the start. Progressing the main story is required to get two key items that open up the entire map. You cannot permanently miss any collectible, as the game allows for free-roam exploration after the main narrative concludes.
- The Basement Key: This is the first key you'll need. It's found inside the top-right drawer of the large wooden desk in the Manager's Office. You can access the office after completing your first full day of mail sorting.
- The Lighthouse Key: This key is given to you by the old fisherman, Silas, after you successfully complete the urgent mail-sorting challenge on Day 3 of the story. Without it, the entire lighthouse area remains locked.
With these two keys, every corner of the island and post office becomes accessible, allowing you to hunt down the full collection.
The Post Office Collectibles (12 Total)
The building where you spend most of your time is hiding nearly half of the game's secrets within its dusty, ink-stained walls. A thorough search of every room is essential.
Sorting Room (4 Collectibles)
This is the main hub of your daily work, but it holds several secrets in plain sight.
- Lost Letter #1: Tucked inside a stuck mail chute on the far-left wall. You have to interact with the lever next to it three times to finally dislodge it.
- Lost Letter #2: Located beneath a loose floorboard directly under the main sorting table. The board creaks when you walk over it; interact with it to pry it open.
- Commemorative Stamp #1 (The Founder): Stuck to the underside of the high shelf where empty mailbags are stored. You'll need to drag the rolling ladder over to reach it.
- Island Postcard #1 (Post Office at Dawn): Pinned to the employee notice board, partially obscured by a work roster for the previous month.
Manager's Office & The Safe (5 Collectibles)
The former postmaster's office is home to a critical puzzle and several well-hidden items.
- Lost Letter #3: Found inside the desk drawer where you also find the Basement Key. It's in a separate, smaller compartment at the back of the drawer.
- Island Postcard #2 (A Quiet Desk): Lying on the windowsill behind the wilting potted plant.
Cracking the Safe
The large, brass safe in the corner requires a four-digit combination. The code is semi-randomized in each playthrough, but the method to find it is always the same. You must find three specific diary entries from the previous postmaster during the main story. Each entry mentions a significant date (e.g., "the 14th of the month," "the year '52"). The code is formed from the last two digits of the year mentioned, followed by the two digits of the day (e.g., 5214). Once opened, the safe contains three crucial collectibles.
- Lost Letter #4: The primary contents of the safe, sitting right in the middle.
- Commemorative Stamp #2 (The Lighthouse): In a small tin box on the top shelf inside the safe.
- Commemorative Stamp #3 (The Ferry): Taped to the inside of the safe door itself.
Basement Archives (3 Collectibles)
After unlocking the door with the Basement Key, you'll find a cluttered archive of old records. A hidden compartment holds the area's secrets.
- The Archive Puzzle: One of the large bookshelves on the back wall has three books with symbols on their spines: a ship, a moon, and a star. To reveal a hidden compartment, pull the books in the order they appear in the sky in the large painting in the Manager's Office: Moon, Star, Ship.
- Lost Letter #5: Inside the revealed compartment, bundled with old tax records.
- Commemorative Stamp #4 (The Island's Crest): Also inside the compartment, pressed inside a heavy ledger.
- Island Postcard #3 (Forgotten Mail): On top of a dusty crate in the far-right corner of the basement, easy to miss in the dim light.
The Island Collectibles (11 Total)
Once the post office is cleared, the remaining collectibles are scattered across the island's landmarks. You'll need the Lighthouse Key to access the final set of items.
The Lighthouse (4 Collectibles)
The lighthouse is not just a landmark; it's the location of the game's most involved environmental puzzle.
- Island Postcard #4 (The Lonely Light): At the base of the lighthouse, on a bench overlooking the sea.
- Lost Letter #6: Halfway up the spiral staircase, stuffed into a crack in the stone wall.
The Lighthouse Beam Puzzle
At the top of the lighthouse is the control panel for the main lamp. The goal is to align the beam with a specific rock formation out at sea, visible only at night. You must wait for the in-game time to pass 9 PM. Rotate the lamp until the beam illuminates a faint, hand-painted symbol of a seabird on the rocks. Holding the beam on the symbol for about 10 seconds will trigger a mechanism, opening a hidden hatch in the floor of the lamp room.
- Lost Letter #7: Inside the floor hatch at the top of the lighthouse.
- Commemorative Stamp #5 (The Seabird): The final stamp is also inside this hidden compartment.
Abandoned Pier (3 Collectibles)
The dilapidated old pier on the south side of the island is battered by the tides, a key mechanic for finding one of the items.
- Lost Letter #8: Nailed to one of the pier supports. You have to walk to the very end of the pier and look down and to the left to spot it.
- Island Postcard #5 (The Rusted Crane): Inside the small, abandoned crane operator's booth.
- Island Postcard #6 (Low Tide): This is missable if you don't pay attention to the time. It's tucked into a rusted tackle box that is only revealed on the beach under the pier during low tide (between 11 AM and 2 PM in-game time).
Whispering Woods (2 Collectibles)
The dense patch of forest in the island's interior.
- Lost Letter #9: Pinned to a large, ancient-looking tree in the center of the woods. A small, cleared circle of ground marks the spot.
- Island Postcard #7 (Forest Path): Resting on a stone wall at the entrance to the woods, near the path leading from the post office.
Cliffside Overlook (2 Collectibles)
This is the highest point on the island, accessible via a winding path that starts near the Whispering Woods.
- Lost Letter #10: The final, most poignant letter is inside a weathered wooden box at the very peak of the overlook, sitting next to a solitary bench.
- Island Postcard #8 (Island View): The final postcard is on the same bench, offering a panoramic view of the entire island you've explored.
Checklist: All 23 Collectibles by Type
For quick reference, here is a complete table of all 23 collectibles needed for 100% completion. Use this to cross-reference any you might be missing before triggering the game's final sequence.
| Collectible ID | Type | Location | Brief Hint |
|---|---|---|---|
| LL-01 | Lost Letter | Sorting Room | Stuck in the mail chute. |
| LL-02 | Lost Letter | Sorting Room | Under the loose floorboard. |
| LL-03 | Lost Letter | Manager's Office | In the back of the desk drawer. |
| LL-04 | Lost Letter | Manager's Office | Inside the safe. |
| LL-05 | Lost Letter | Basement Archives | In the secret book puzzle compartment. |
| LL-06 | Lost Letter | Lighthouse | Halfway up the stairs, in a wall crack. |
| LL-07 | Lost Letter | Lighthouse | In the floor hatch after the beam puzzle. |
| LL-08 | Lost Letter | Abandoned Pier | Nailed to a support piling. |
| LL-09 | Lost Letter | Whispering Woods | Pinned to the ancient central tree. |
| LL-10 | Lost Letter | Cliffside Overlook | In the box on the bench at the peak. |
| CS-01 | Commemorative Stamp | Sorting Room | Under the mailbag shelf. |
| CS-02 | Commemorative Stamp | Manager's Office | Inside the safe's tin box. |
| CS-03 | Commemorative Stamp | Manager's Office | Taped to the inside of the safe door. |
| CS-04 | Commemorative Stamp | Basement Archives | In the secret book puzzle compartment. |
| CS-05 | Commemorative Stamp | Lighthouse | In the floor hatch after the beam puzzle. |
| IP-01 | Island Postcard | Sorting Room | On the employee notice board. |
| IP-02 | Island Postcard | Manager's Office | On the windowsill. |
| IP-03 | Island Postcard | Basement Archives | On a dusty crate in the corner. |
| IP-04 | Island Postcard | Lighthouse | On the bench at the base. |
| IP-05 | Island Postcard | Abandoned Pier | In the crane operator's booth. |
| IP-06 | Island Postcard | Abandoned Pier | In a tackle box visible only at low tide. |
| IP-07 | Island Postcard | Whispering Woods | On the stone wall at the entrance. |
| IP-08 | Island Postcard | Cliffside Overlook | On the bench at the peak. |
Frequently Asked Questions (FAQ)
How do you get the true ending in Letter Lost? To unlock the true ending, you must find all 23 collectibles (10 Lost Letters, 5 Commemorative Stamps, and 8 Island Postcards) before you complete the final mail-sorting task on Day 7. Once you have them all, the final cutscene will be extended, revealing the full story of your predecessor.
What is the safe combination in the Manager's Office? The combination is different for every player. You must read the previous postmaster's diary entries during the story. Three of these entries will mention a specific date. The code is the last two digits of the year followed by the two digits of the day (Format: YYDD).
Do you need all collectibles for any achievements? Yes. Finding all 10 Lost Letters unlocks the "Archivist" achievement. Finding all 23 collectibles in total unlocks the "Special Delivery" achievement, which is required for 100% game completion.
Can you miss any collectibles permanently? No. After the main story concludes, the game enters an endless free-roam mode. You can return to all areas of the post office and the island to find anything you missed.
A Story Told in Pieces
With all 23 items in your satchel, the full, melancholic story of the island and the postmaster who came before you is finally revealed. The true ending provides a poignant and deeply satisfying conclusion to the central mystery of Letter Lost, transforming a simple job into a powerful narrative of connection and memory. It's a journey well worth completing.