astralunio is a recurring psytrance club night based in vienna, running editions throughout the year at pratersauna, a well-known electronic music club in the city. the series runs under the banner "a psytranceformation" and has built a consistent presence on the viennese psy calendar, with multiple editions documented across goabase and local listings.

the format is an indoor club event, keeping things compact relative to festival-scale productions in the region. past editions have brought psytrance acts through the pratersauna floor, and the series sits within a broader cluster of psychedelic and goa-oriented nights active in the austrian scene.