The Spectrum Retreat is a video game developed by Dan Smith. You can download it for free on Epic Games Store
The Spectrum Retreat is a 2018 video game. It was developed by Dan Smith from the age of 15, over a five-year period. The game was made noteworthy by the young age at which Smith was able to develop the game and secure a publishing deal. (Wikipedia)
You can download it for free on Epic Games Store.