Ayreonauts Only is the first compilation album by Dutch progressive metal project Ayreon by Arjen Anthony Lucassen, released in 2000.

[1] It is notable for featuring vocals by Ian Parry and Leon Goewie, two former bandmates of Lucassen on his former band Vengeance.

He eventually used the song as the basis of "Chaos", the opening track of Flight of the Migrator, with this time real drums played by Ed Warby.

[3] "Temple of the Cat" is the only single released from the album The Dream Sequencer, however Lucassen always felt unsatisfied with the final result.

"Beyond the Last Horizon" is a newly, "more guitar-orientated new version with a real drummer" of the song of the same name from Actual Fantasy, featuring Gary Hughes of Ten on vocals.