Successfully complete the indicated tasks to view the corresponding ending:
Wayward Dreamer: At the end of the "Insanity" chapter, when you use the exit door to escape the Asylum and are standing above a black abyss, jump off the ledge to your death, and Thomas will awaken in the "Childish Things" chapter as a younger version of himself. Then, find the branch in the forest full of dead, disemboweled animals where a younger Gabby runs away ahead of Thomas. Follow Gabby down each of the forks in the path. From the start, move up, down, down, up, down, and down. The final fork is at the end of the cemetery. Find the younger Gabby stabbed in the torso beneath the gazebo to start the "Wayward Dreamer" chapter, which leads to that ending.
Final Descent: At the end of "Insanity" chapter, instead of jumping off the ledge over the abyss, turn around and enter the asylum again. A cutscene will begin, where Gabby attacks and injures Thomas. The "Together At Last" chapter will start, with an adult Thomas having only a candle as a source of light in a dark house. Progress until you reach the ending hallway where Thomas must move forward in pitch dark. Do not enter any side doors here, and simply move on until you meet a younger Gabby. After a suprise death, Thomas will appear in the "Final Descent" chapter, which leads to that ending.
Destroyed Dreams: You can enter the "Destroyed Dreams" chapter by completing the indicated tasks in the "Childish Things" or "Together At Last" chapters:
To enter the "Childish Things" chapter, jump off the ledge at the end of the "Insanity" chapter. Progress in the "Childish Things" chapter to the forest sequence where Gabby runs ahead of Thomas. Do not follow her, and instead take the opposite paths at each fork: up, down, up, down, and up. Certain paths lead to dead-ends; if this happens, backtrack and select the appropriate path. If done correctly, a younger Thomas will find adult Gabby's corpse near the gazebo at the end of the chapter, and you will enter the "Destroyed Dreams" chapter.
To enter the "Together At Last" chapter, return to the asylum at the end of the "Insanity" chapter. Progress in the "Together At Last" chapter until reaching the dark hallway where Thomas' candle is extinguished. Flashes of light will illuminate various scenes as you move down the hall. Wait for the third revelation, which shows Gabby dead on a gurney with blood on her stomach. Enter the door to the right of her to start the "Destroyed Dreams" chapter.
Successfully complete the indicated task to unlock the corresponding achievement. To view your achievements and stats in Steam, select "Community", "My profile", "View all my games", then the game and view stats.
- Destroyed Dreams: Completed the Destroyed Dreams nightmare.
- Final Descent: Completed the Final Descent nightmare.
- Veins: Unlocked all branching paths in the Nightmare Select screen.
- Wayward Dreamer: Completed the Wayward Dreamer nightmare.