Games like Under Lock

"Damned" is a horror action game that supports up to 5 players, including 4 survivors and 1 monster, in online co-op gameplay. Survivors must escape haunted places by finding keys and items, while avoiding the monster. The monster, with unique hunting styles, aims to kill survivors. However, the game is poorly optimized, very buggy, and has a lot of grinding, but it also offers a dense atmosphere and some humor.

SEVERANCE is a 1–5 player action game blending co-op paranormal investigation with asymmetrical multiplayer. Players can either team up to identify ghost types while avoiding a deadly entity or take control of the ghost to hunt hunters strategically. Known for its marvelous gameplay and humor, it can also be very buggy.

"Daemonical is a horror action multiplayer game for 2-5 players, where any one of them can become a demonic entity. Players must work together to find missing ritual components and exorcise the demon, but trust is fragile as they don't know who has been possessed. The humans play in first-person mode and must either team up or hide and survive until daybreak."

"Dead Realm" is a first-person action horror game where players are divided into humans and ghosts. The goal is to either survive as a human or reap the living as a ghost in the haunted grounds of a long-dead electricity tycoon. With 5 terrifying game modes, 9 varying maps, and an emphasis on stealth and survival, players can expect a fun and immersive experience in this community-driven game.

In Silence is a story-driven, atmospheric horror game. Players navigate through a dark and eerie world as they uncover the mystery behind a missing child. With puzzles to solve and dangerous creatures lurking in the shadows, survival requires stealth, strategy, and quick thinking.

"Monstrum 2" is an asymmetric PvP survival horror game where up to 4 players work together to escape a procedurally generated sea fortress, while one player takes on the role of a terrifying monster hunting them down. The sea fortress' layout, puzzles, items, and obstacles change with each playthrough, ensuring a dynamic and challenging experience for both humans and monsters. Players must use their wits and teamwork to overcome the complex, ever-changing environment and escape the clutches of the monster.

White Noise 2 is a 4vs1 asymmetric horror game, where players can either be part of the investigator team or control the creature. Investigators must explore the area, manage their resources, and cooperate with each other to defeat the creature, while the creature must stalk and hunt the investigators without being seen. The game features simple matchmaking and allows for unique, terrifying experiences with friends.

"Survive the Nights" is a post-apocalyptic, first-person survival game. Players must scavenge for resources, craft tools, and build shelters to survive zombie attacks and harsh weather conditions. Cooperative gameplay and a focus on realism, such as complex crafting and day-night cycles, set this game apart.

In Soul at Stake, players engage in a 1v4 horror experience with an oriental theme. A ghost named Xi’E has tricked participants into a soul-gambling game, where four gamblers must evade a devil and perform a sealing ritual to redeem their souls. Due to a bug, non-English system users may encounter issues entering the game, and it is recommended that they wait for a fix before purchasing.

"Half Dead" is a first-person shooter horror game where players navigate through a dark and ominous asylum filled with supernatural creatures. The game features permanent death, forcing players to start over with each demise, and a variety of weapons to fend off the enemy hordes. With permadeath, rogue-like elements, and a grim atmosphere, "Half Dead" offers a challenging and intense experience for horror enthusiasts.