Hey there. Anything tied to the season passes, counts as an in-game purchase and is available no matter which platform you play on, from a single purchase. So from the annual pass on Steam, your profile will still have all four season passes when played on PS, so any 'Season of...' content like Defiant Battlegrounds and the Vexcalibur exotic mission. The Lightfall dungeon key also counts as an in-game purchase and will likewise be available on all platforms. You will not be able to play Lightfall-specfic content like Lightfall campaign missions, Root of Nightmares, Lightfall's strike as a Nightfall, exotic quests, etc. But (covering Quicksilver Storm) any Lightfall-specific gear earned on Steam will be available on PS, the gear [i]itself[/i] never gets locked out once earned. So for example if you earned Winterbite on Steam, you could use it on PS without owning Lightfall there. The Stasis subclass, and I am assuming Strand, are the only two earnables that you get locked out of, if you do not own the expansion on the platform you are playing on. Year 6's second raid will be free to play, no purchase needed. So on PS, you only need the standard version, and you'll have all the same access to things, as you do now on Steam.