Likely a confusing name unless you dabbled in MS-DOS when you were a tyke; Keen was the kid hero of a platformer that was essentially i.d Software's first genuine franchise.
As the FPS games took precedent for the studio, Keen fell by the wayside, but the company have always thrown in Easter egg references to the character over the years and the OG gamers have never forgotten him.
Therefore it was an interesting move to resurrect this brand after nearly two decades, plus its displaying a slickly designed homage to Saturday morning cartoons – but it's being done as a free-2-play card-strategy mobile game?
Most gamers that actually still care about the brand aren't going to flock to the genre, so the whole thing has an odd tang to it.