The popular free horror game "The Lab Left Behind"

The setting is an abandoned laboratory where research was once conducted to create non-human entities.

The player controls the protagonist, exploring the facility. You read through remaining documents, search for keys, and solve puzzles to aim for escape. That is the game.

However, the difficulty is abnormally high. A single error in judgment leads directly to a game over, forcing you to repeat continues over and over.

The protagonist is an agent who investigates and subjugates dangerous creatures.

Waiting for him as he arrives for the investigation were two creatures left in the lab: Disto and Kevil.

Evading pursuit and occasionally fighting back, you head for the exit. In a normal playthrough, defeating them is the condition for escape.

Even so, the occasional reactions they showed caught in your heart.

In this game, numerous endings exist that branch based on your choices.

Among them, there is said to be a hidden ending called the "Grand Finale Ending," where you deepen your bond with them without killing anyone, and the protagonist and enemies all survive.

However, not a single player had ever reached it. The conditions were unknown. Rumors even suggested it was a non-existent conclusion.

You explored the laboratory countless times. You re-read overlooked documents, changed your choices, and this time, you tried approaching the ones you had only run from.

And so, after many failures—

Secret End: "A Saved Future"

On the screen were the three of them, alive. No longer being chased, no longer pointing guns at each other. You finally reached it.

You became the first player in the world to see this ending.

...It was you. You were the one who saved me.