All about Steins;Gate

OSTs

Besides the music from the anime, visual novels and movie, there are also bonus CDs and the beautiful Symphonic Reunion.

Character songs

Drama CDs

The drama CDs are short audio-only stories recorded with the same voice actors as in the anime and VN.
Some were subtitled by Reading Steiner and uploaded to his Youtube channel, but it was taken down. They have however been reuploaded by JD2390 or can be downloaded from Link3693's mediafire.

Drama CD Alpha: Babel of the Grieved Maze

A story from Kurisu's perspective taking place before Okabe travels to the Beta worldline. There also is a translated manga adaption and an untranslated light novel.

Drama CD Beta: Arc Light of the Point of Infinity

A story from Mayuri's perspective taking place at the end of the anime and visual novel. The manga adaption is the process of being translated.

Info:

Released: April 28, 2010
Chapters: 9
Adaption: Arc Light of the Point at Infinity Manga

Drama CD Gamma: Hyde of the Dark Dimension

A story from Okabe's perspective in the gamma attractor field, where he finds himself in a difficult situation. This is currently the only title that takes place in the Gamma Attractor Field.

Comptiq Drama CDs

This series of Drama CDs was included with a limited edition release of the movie, and takes place in 2011.

Untranslated

Some Drama CDs have not been translated yet, more details can be found on the Steins;Gate wiki.

Links: