That was short but no less interesting. Adam presents himself as a harmless person who seems quite doting towards his "girlfriend". What interests me is how he's so normal looking and acting that we don't really equate him as a threat despite the implication that he drugged our food at the end (probably when he realized we had no memory of who we and he is).
I'm curious about the memory scene if it was something like an innocent plyaful childhood memory or if Adam was exhibiting abnormal attachment towards the player even back then. Seeing as it's called "Adam Game" (which, should it be Adam's Game?) I'm imagining that Adam's harmless persona is going to gaslight MC a lot and put her in a psychologically unfair situation.
Quite curious how it'll turn out! Good luck with its development!