Platform:
Red Dead Redemption: Undead Nightmare (PlayStation 3)

Red Dead Redemption: Undead Nightmare (PlayStation 3)

8 available, 9 wanted, 12 collection
Plasma Sword: Nightmare of Bilstein (Dreamcast)

Plasma Sword: Nightmare of Bilstein (Dreamcast)

5 available, 18 wanted, 16 collection
Simpsons: Bart's Nightmare, The (Super Nintendo)

The Simpsons: Bart's Nightmare (Super Nintendo)

7 available, 10 wanted, 8 collection
Kirby: Nightmare in Dream Land (Game Boy Advance)

Kirby: Nightmare in Dream Land (Game Boy Advance)

6 available, 21 wanted, 32 collection
Knights in the Nightmare (Nintendo DS)

Knights in the Nightmare (Nintendo DS)

5 available, 12 wanted, 20 collection
Nightmare Creatures (PlayStation)

Nightmare Creatures (PlayStation)

4 available, 5 wanted, 12 collection
Alone in the Dark: The New Nightmare (Dreamcast)

Alone in the Dark: The New Nightmare (Dreamcast)

3 available, 15 wanted, 16 collection
Knights in the Nightmare (PlayStation Portable)

Knights in the Nightmare (PlayStation Portable)

5 available, 10 wanted, 15 collection
Alone in the Dark: The New Nightmare (PlayStation)

Alone in the Dark: The New Nightmare (PlayStation)

5 available, 7 wanted, 10 collection
Alone in the Dark: The New Nightmare (PC)

Alone in the Dark: The New Nightmare (PC)

13 available, 0 wanted, 11 collection
Red Dead Redemption: Undead Nightmare (Xbox 360)

Red Dead Redemption: Undead Nightmare (Xbox 360)

8 available, 3 wanted, 22 collection
 

KISS Psycho Circus: The Nightmare Child (PC)

4 available, 1 wanted, 4 collection
KISS Psycho Circus: The Nightmare Child (Dreamcast)

KISS Psycho Circus: The Nightmare Child (Dreamcast)

2 available, 9 wanted, 5 collection
Bladestorm: Nightmare (PlayStation 4)

Bladestorm: Nightmare (PlayStation 4)

0 available, 5 wanted, 1 collection
Nightmare Creatures II (PlayStation)

Nightmare Creatures II (PlayStation)

1 available, 3 wanted, 5 collection
Nightmare Creatures (Nintendo 64)

Nightmare Creatures (Nintendo 64)

3 available, 8 wanted, 11 collection
Nightmare Creatures II (Dreamcast)

Nightmare Creatures II (Dreamcast)

3 available, 4 wanted, 6 collection
Deception IV: The Nightmare Princess (PlayStation 4)

Deception IV: The Nightmare Princess (PlayStation 4)

2 available, 9 wanted, 1 collection
Yu-Gi-Oh!: Nightmare Troubadour (Nintendo DS)

Yu-Gi-Oh!: Nightmare Troubadour (Nintendo DS)

1 available, 4 wanted, 5 collection