"Gemini Dream" was the first of three singles released from Long Distance Voyager, with "Painted Smile," another track from the album, on the B-side.

"[2] "Gemini Dream" was written jointly by the band's lead guitarist Hayward and bassist Lodge, both of whom won an ASCAP songwriting award for it.

"[10] Billboard said the band was "in super form" and called the song a "dance-beat propelled track that is highlighted by crisp, clear vocals and the group's patented orchestral sound.

[6] Post-Gazette critic Gary Graff described it as sounding like "Lipps, Inc. meets the Electric Light Orchestra.

"[12] Sacramento Bee critic Bob Sylva said it "possesses a clever, very Hall & Oates-like vocal harmonies between Justin Hayward and John Lodge that's a delight.

"[13] News-Democrat critic Roger Schlueter joked that "Rock fans will probably see 'Gemini Dream' as [Long Distance Voyager's] saving grace much as they saw 'Peak Hour' as one of the best cuts Days of Future Past had to offer," noting that "the beat and vocals are straight-forward.

"[14] Ultimate Classic Rock critic Nick DeRiso rated it as the Moody Blues' 10th greatest song, calling it "a canny update of their core sound" and saying that it "set a template for the glossy-sheened prog-pop of Asia and the '80s-era retooled Yes.

"[15] Allmusic critic Dave Connolly felt that it "does sound dated in today's post-Xanadu landscape.

"[16] Music journalist Geoffrey Freakes described the song as "synth-pop", combining ELO-like melodies and harmonies with the Human League-like rhythm and synth hook, which he says is "a strange concoction that hasn't dated particularly well.

Lodge released a live solo version of the song in 2021, recorded in Las Vegas, as a single and on his album The Royal Affair and After.