What happens when a seed contains a locked item?

What happens when a seed contains a locked item? - A Jar Filled Of Chia Seeds

Say I found a seed which contains an item I just unlocked, right in the first item room. What happens when a new player, who hasn't unlocked that item, plays my seed? I would guess one of the following situations would happen:

  1. The 'locked' item will be substituted by an item that isn't locked for the new player;
  2. All the items in the seed will be different, because the new player has a different item pool;
  3. The entire run will be different, including the rooms and such (RNG will derail);
  4. Nothing is different, the new player can obtain the item that is actually still locked.

Has someone tested which of these cases happens?






Pictures about "What happens when a seed contains a locked item?"

What happens when a seed contains a locked item? - Senior couple working in greenhouse
What happens when a seed contains a locked item? - Clear Glass Jars with Raw Beans, Seeds and Rice on Brown Wooden Table
What happens when a seed contains a locked item? - Anonymous farmer taking notes on soil with seed



Can you unlock items with seeds?

Nope, seeded runs don't unlock anything. They also do not have a donation machine available, so you can't donate (or steal money from the donation machine by blowing it up).

Can you get achievements with seeds binding of Isaac?

Except for some special seeds, inputting a seed will cause the 'no trophies' mark to appear. This prevents any achievements from being obtained on that particular run. Special seeds do not affect level generation.



Dead Cells - Unreachable Blueprint in Spawn Reached!




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Images: Castorly Stock, Greta Hoffman, Ron Lach, Greta Hoffman