Lost Keys
In Lost Keys, you are in the role of a little boy, who got lost in a place full of dangers, embark on this adventure journey, overcome all obstacles and help Breno to return home!

Mostly Positive · 440 reviews
78% positive (343 / 440)










Nevermind ushers you into dark and surreal worlds within the minds of trauma patients. When played with supported biofeedback technology, Nevermind picks up on indications of fear—lashing out if you allow your feelings of anxiety to get the better of you.
Released
September 29, 2015
Price
Platforms
macOS · Windows
Developer
Publisher
Last sync
September 25, 2026
NOTE: You do NOT need a heart rate sensor to play Nevermind.
With or without a heart rate sensor, emotion-based biofeedback will be available via almost any standard webcam on a min-spec (or higher) Windows or Mac machine*. Without a webcam or heart rate sensor, the biofeedback-specific features will be unavailable, but the core game itself will be fully playable and enjoyable as an atmospheric mystery-adventure game.

Nevermind is a biofeedback-enhanced psychological thriller that takes you into the dark and surreal world within the subconscious minds of psychological trauma patients.
As you solve puzzles and explore the twisted labyrinths of the mind, biofeedback technology monitors your feelings of fear, tension, and anxiety with each passing moment. If you let your fears get the best of you, the game becomes harder. If you’re able to calm yourself in the face of terror, the game will be more forgiving.
Nevermind’s goal is to create an unforgettable gameplay experience that can help teach you to be more aware of your unique internal responses to stressful situations. If you can learn to control your feelings of stress and anxiety within the disturbing realm of Nevermind, just imagine what you can do when faced with those inevitable stressful moments in the real world…


* Note: Webcam-based biofeedback is unavailable when played on VR platforms. For more information on our supported technologies and compatibilities, please visit:
** To play Nevermind while using an Apple Watch, you must also download the Apple Watch app. For more information on how to use the Apple Watch with Nevermind and links to where you can download the app, please visit:
Important Note: The sensors listed represent devices compatible with Nevermind as of December 2017. As operating systems, hardware, and computers continue to evolve, please be aware that some of these devices may not work with Nevermind in the future. We cannot guarantee that devices or biofeedback will properly function any time after that date.
...
DISCLAIMER
This game has not been evaluated by the U.S. FDA and is not intended to diagnose, treat, cure, or prevent any disease. The consumer-grade technologies supported by Nevermind are not medical devices nor should they be considered medical instruments.

Tobii EyeX Eye-Tracking Controller
With a Tobii EyeX eye-tracking controller, several aspects of the game can be influenced by simple eye movement - unlocking new features throughout the entire game as well as some brand new surprises within each level.
For more information about the Tobii EyeX, please see
GAME PADS
Nevermind currently has limited controller support for several D-pad based controllers (NOTE: a keyboard is still needed to enter the doctor’s name during the registration process).
We currently support:
Nevermind supports Razer Chroma technology! For more information about Razer Chroma, please see