Pokemon Mystery Dungeon is a series of spin-off games developed by Spike Chunsoft set in the Pokemon universe. The first games released in November 2005 (JP) and throughout 2006 everywhere else under the name Blue Rescue Team and Red Rescue Team. After much success, Explorers of Time and Explorers of Darkness followed suit releasing in September 2007 (JP) and early 2008 everywhere else. An enhanced remake of the Explorers games under the name Explorers of Sky was released a year later in 2009. There were several more editions developed and released until 2015, but this collection focuses on the first two sets of games, Rescue Team and Explorers.