Invitation Letter

Lore & Background

The design of the letter is deceptively innocent, mimicking the aesthetic of childhood games to lower defenses before revealing its true nature. Once opened, the symbols inside—a circle, a triangle, and a square—serve as a cryptic code that only those who are truly desperate will understand or attempt to decipher by following the instructions. The organization uses these letters to filter their population, ensuring that every player entering the island is someone who has already lost everything in the outside world, making them more likely to risk their lives for the grand prize.

In Their Own Story

The rain hammered against the cracked pavement of Seoul as Gi-hun shuffled through a puddle, his head bowed low. A shadow detached itself from the alleyway wall, stepping into his path with fluid silence. No words were exchanged; only a hand extended, holding a crisp, cream-colored envelope that seemed too clean for this grimy street. Before he could ask who they were, the figure vanished into the mist. Trembling, Gi-hun tore open the seal. Inside lay a single sheet of paper, folded neatly, bearing three stark black shapes: a circle, a triangle, and a square. Below them, a phone number waited in silence. He looked at his empty pockets, then back at the symbols. For the first time in years, he felt a spark of hope, unaware that it was merely the match lighting a funeral pyre.

Reader's Guide

The Invitation Letter functions as the gateway mechanism for the Squid Game. It is distributed exclusively to individuals who have hit rock bottom financially or emotionally, often those with massive debts or no family support. The letter contains minimal text, relying on the iconic geometric symbols to convey its message without explicit threats.

To activate an invitation, a recipient must call the number provided on the card. This action triggers a response from the organization, which then arranges for a masked recruiter to contact them directly. The process is entirely voluntary in theory; however, the psychological pressure of the recipient's situation makes refusal nearly impossible for most targets.

Once the invitation is accepted and the individual arrives at the designated location, they are transported to the island where the games begin. At this point, the letter has served its purpose: it has successfully converted a civilian into a player. No one who receives an invitation can simply walk away once the process begins; their identity is erased, and they become 'Player' number before being stripped of all personal belongings.

Did You Know?

• The symbols on the letter (circle, triangle, square) are also used as the visual motif for the Front Man's mask and the VIPs' attire.
• Recruiters often leave the letters in places where the target is alone, ensuring no witnesses to the interaction.
• The organization specifically targets people who have already lost hope, making them more likely to accept a lethal gamble.
• Once a player enters the game, their name and identity are replaced by a number, symbolizing the erasure of their former life.