Games like Escape the Testing Facility

In Little Nightmares, players control Six, a young girl trying to escape "The Maw," a creepy vessel filled with grotesque creatures. The game features a dark, whimsical world filled with puzzles and secrets to discover. With its unique art style and atmospheric gameplay, Little Nightmares encourages players to reconnect with their inner child and unleash their imagination to escape from the horrors that lurk in the shadows.

Be prepared for a first-person look on life through the eyes of a teenager, who is trying to escape from mighty Aztec god Xipe Totec. Get ready for a chaotic experience with horror and survival mechanics.

"Full Void is a single-player platformer set in a dystopian future, where a young teenager must fight their way through puzzles and obstacles in a world controlled by a rogue AI. With stunning hand-drawn pixel art visuals and a thrilling atmosphere, Full Void is a spiritual successor to classic cinematic puzzle platformers like Prince of Persia, Another World, and Flashback. Utilize hacking skills to interact with the game's elements and survive against hostile creatures in this innovative 2D world."

Closure is a single-player horror platformer game with a good story, splendid gameplay, and ingenious graphics. Players manipulate lights to affect objects' reality while exploring a spider-like demon's journey through eerie, abandoned settings. The game features a great soundtrack, creating a dense, unsettling atmosphere. Note that the game contains grinding, which might not appeal to all players.

"Kohate is a single-player Horror Stealth game that takes approximately 4 hours to complete. You play as a prisoner of BioMass Labs, tasked with surviving their mysterious tests at a remote facility. With multiple endings, secrets to discover, and a casual mode available, Kohate is designed for replayability and encourages players to uncover the dark truth behind the company's experiments."

Magrunner: Dark Pulse is a horror-themed action-puzzle game that combines technology with the Cthulhu Mythos. As Dax, a trainee in MagTech Corporation's space program, you must use your Magtech glove to manipulate objects and solve challenging puzzles in order to survive and confront the monstrous creatures of Cthulhu. The game features 40+ levels set in high-tech training rooms and the cosmos.

Hidden Deep is a 2D sci-fi thriller game set in a sub oceanic mining and research facility, where you lead a team to discover what happened to the previous researchers who went missing. Utilize specialized equipment, give orders to your team, and defend against horrific alien life forms and other unknown dangers. The game features multiple game modes, including a single-player option.

Limbo is a dark, atmospheric puzzle-platformer. The game follows a boy's journey through a treacherous world filled with dangerous traps and hostile creatures. With its moody black-and-white visuals and haunting soundtrack, Limbo offers a unique and immersive gaming experience.

"Red Matter 2" is a narrative-driven virtual reality puzzle adventure game set in a alternate Cold War scenario. Players uncover the secrets of a mysterious research facility on a desolate moon, while navigating a tense geopolitical conflict. Utilizing cutting-edge technology and telekinetic abilities, players must solve challenging puzzles, evade deadly traps, and make impactful decisions that shape the game's branching storyline.

DARQ is a single-player horror action game with a good plot, featuring Lloyd, a boy trapped in a nightmare, where he must bend physics and manipulate the dream world to survive. The game boasts ingenious mechanics, great graphics, and a fantastic soundtrack, with a focus on psychological horror through a creepy atmosphere. Gameplay includes gravity-defying puzzles and stealth-based gameplay, as Lloyd must avoid powerful and fast enemies in his quest to wake up.