Play’n Go is a master when it comes to creating highly innovative and unusual grid slots, and Diamond Vortex is close to a masterpiece of moving parts and chain reaction wins that build up to the eventual climactic bonus round. The game has a cosmic vibe, although the visuals are a bit more diffuse than their very impressive previous grid slot, Gold Volcano. The symbols fall from above to fill the hexagonal grid, and the whole thing runs on a cluster pays engine with a cascading wins feature to boot.