Tenebra
Tenebra is an atmospheric puzzle game with rogue-like aesthetics. Guide the hapless protagonist to the exit. Poor guy is afraid of darkness and refuses to walk in the dark areas.
This is great wee game. I have the Spectrum copy on my TheSpectrum, and it’s available for quite a few platforms. It’s an ideal candidate for something like the Jupiter Ace too, but there’s no version for it.