Superliminal has a unique concept for a puzzle game and nice and trippy visuals to accompany it, but alas, thats the majority of what it has going for it. The short length combined with the lack of difficulty and any interesting story means that the game will barely leave an impact on you, and there really isnt any reason to revisit it. And its a shame, because it starts out impressive, but then the novelty wears off quickly.
Source: N4G PC Review: Superliminal – Hardcore Gamer