Planetarian: The Reverie of a Little Planet
"Planetarian" was released on November 29, 2004 via download over the Internet playable on Windows PCs, and was first made available only to Yahoo! Japan Broadband users. The game was opened up for general sale on December 6, 2004. Key released a CD-ROM version for Windows PCs on April 28, 2006 in limited and regular editions. An updated version of "Planetarian" compatible for Windows Vista PCs was released by Key on July 31, 2009 in a box set containing five other Key visual novels called Key 10th Memorial Box. Another updated version compatible for Windows 7 PCs called "Planetarian: The Reverie of a Little Planet Memorial Edition" was released on April 30, 2010. The "Memorial Edition" also came bundled with the three previously released "Planetarian" drama CDs. An HD edition for Windows was released on July 29, 2016. "Planetarian" was released on Steam by Sekai Project in English for Windows on September 12, 2014, with later support planned for macOS and Linux devices. The Steam release was updated on September 17, 2014 to allow the user to switch to the original Japanese version of the game.
The Infinite Vulcan
This story was expanded into a novelette by science-fiction author Alan Dean Foster as part of the collection of "The Animated Series" adapted novelizations and was released as part of "Star Trek Log Two", published in September 1974. The other episodes adapted in the same work were "" and "The Lorelei Signal". "The Infinite Vulcan" was released on LaserDisc as part of the series set. The first release of "Star Trek: The Animated Series" on DVD was through fan-made productions. The official DVD release was on November 21, 2006 in the United States, a single release containing all episodes from both seasons of the television show.