Sign up to receive each week’s Playlist e-mail here! Also check out our full, interactive Playlist section. GARDENARIUM (Windows, Mac, Linux) BY PALOMA DAWKINS AND KYLER KELLY People have wondered about the potential healing properties of psychedelics ever since Timothy Leary tried curing alcoholics by giving them acid in the ’60s. To some, trippy drug-induced visuals are just hippie nonsense. To others, they’re an invitation to embark on a journey of weirdness and self-discovery. Gardenarium presumes the latter, presenting you with a twirling, swirling world that unfurls as you pass, like a blooming flower on MDMA. Tasked with reaching the summit of a psychedelic mountain,…