How many quests can you find on other quests?

Very occasionally on daily/weekly quests you can find a new quest in a container.

So far I have found two: "Vault 789" and "With Friends Like These".

Both gave multiple legendary rewards. Are there any more?


Solution 1:

The Fallout wiki lists five.

  • Welcome to Paradise
  • With Friends Like These
  • Factory Floor of Fear
  • Vault 789
  • The Mystery of Vault 666

So looks like I've got a few more years of daily quests to unlock them all.