Thumb Spree reviews Portal imitation, V is for Vortex: "At first glance How I Hate the Night's V is for Vortex has two things working in its favor. For one, developer Jonathan Mulcahy's hand drawn graphics possess a genuine indie charm. Much like the first iPhone game I ever downloaded, Kevin Calderone's masterful platformer Trace, Vortex is the product of humble origins.
Secondly, Vortex borrows from one of the most innovative action-puzzlers of all time, Valve's Portal. Shameless as it is to swipe the primary play mechanic from an an established console rockstar (*cough* Gameloft *cough*), it is a proven formula. And Valve did it in three-dimensions, right?"