Hellnight is a Horror-Survival, Adventure, and Single-player video game developed by Konami. Throughout the game, the player as an unnamed protagonist travels through different areas and must solve puzzles to progress. The player encounters only one enemy, such as a mutating monster. The way to survive from the demon is to run away. While playing the game, the player views the environment from the first-person perspective.

If the player comes close to any of the enemies, it will result in the character’s death. The game has a multiplayer mode where the player plays with the companions, and once the companions get attacked, they died permanently. The game allows the other players to replace the murdered players.

One character can lead the team simultaneously, but the rest of the players have a unique role and ability. The game has no combat and the primary weapon that a player possesses is to run fast. After a while, the characters may get exhausted, and the red screen warns the player to bypass the running limit.