Official English wording
The English Steam achievement page describes Ad Astra as flying 10,000 km. That is the wording on the listing, not a measurement of the game’s actual counter. Do not use it as a verified distance requirement when comparing the conflicting player report below.
The units conflict
Vergusha’s Russian achievement guide instead gives 10,000 metres and suggests jumping. Metres and kilometres differ by a factor of 1,000, so silently treating the two descriptions as equivalent would be misleading. The in-game counter has not been tested for this site; a reliable farming duration or exact measured threshold remains unknown.
Sources
Sources checked October 3, 2026. Player reports remain attributed; this site has not performed the gameplay tests.