Stratosfear is the eighth album by the German group Tangerine Dream. It marks the beginning of the band's development away from their uncompromising early 1970s synthesizer experiments toward a recognizably more melodic sound, a trend they would pick up again in 1979's Force Majeure. The title track "Stratosfear" has been played live many times and has been released in a re-mixed form on a number of other albums.
Stratosfear combines Tangerine Dream's acoustic and electronic influences more tightly than before. For instance, at the end of the last track, "Invisible Limits", the deep piano/flute tune reveals the album's romantic flavour even after the earlier predominantly synthetic compositions (tracks #1 to last part of track #4).
The LP reached No.39 in the UK, in a 4-week chart run, and eventually reached silver status for selling in excess of 60,000 copies (£100,000+).