Is there a lore reason why we don't go to certain places from D1 and D2 any more? I know why we can't go to Io, Titan, or Mercury anymore (I guess we still can technically go to Mars because crafting). But why not Venus, the Tangled Shore, or Dreadnaught? I'm sure stuff still happens there that the Guardians might want to deal with.
Maybe with the Dreadnaught it's just been abandoned since Oryx's death since it can't fire its screw all kill everything gun or move without him. Only thing I can think of for why we don't go to the Store is because maybe Mara decided to lock it down to hunt for Spider and get everything under control? Can't think of anything for Venus.
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Lore wise, there isn’t anything big currently happening in those planets. Bungie wise, they gotta work on them in order to bring them back just so they can also sunset other planets because of limitations. It is what it is