is a duology of Japanese adult visual novels with 2D action elements developed by Giga. The series characterizes itself as a cyberpunk action adventure game. The first game, named Baldr Sky Dive1 "Lost Memory” was released in Japan on March 27, 2009, for Windows. The second game, Baldr Sky Dive2 "Recordare" was released in Japan on November 27, 2009. A fandisc called Baldr Sky DiveX "Dream World" was released in Japan on September 24, 2010. An English version containing both Dive1 and Dive2 was released by Sekai Project on December 20, 2019. Gameplay A majority of Baldr Sky'''s gameplay consists of reading the text that's rendered on screen and supported with audio for voices. The player will occasionally be presented with choices to select which may or may not determine the outcome of the game. As Baldr Sky has multiple endings, the player will have to replay the game multiple times in order to view all of the endings. Similar to other games in the Baldr series, Baldr Sky is also driven by a top-down 2D interface where the player controls a mecha in sprite form to combat enemy machines. The player is given a chance to upgrade or modify the equipment of the mecha prior to a series of battles. Plot Setting and themesBaldr Sky takes place in Japan some time in the future during the 21st century. Nanomachines have become commonplace and have taken a major role in society. The abilities of these nanomachines range from medical purposes for curing ailments and modifying the taste of food. A new generation of humans now also have a chip embedded in them which allows them to be connected to the Internet at all times. With the dawn of these new technologies, warfare has expanded beyond the physical world onto the virtual world. People engage in combat online in simulacrums, the name of the mecha units in the game, or with viruses (unmanned robots). Story The story of Baldr Sky revolves around the male protagonist and is told through two timelines, the present and the past through flashbacks. At the beginning of the story, Kou is suffering from memory loss, so much of the back story about the past is told through flashbacks while Kou is recalling his memories with the aid of medical nanomachines. In the present, Kou and his subordinate, , are after a group of scientists who had