I keep on trying to merge 3 rooms but 1 makes a different one! Do I have to wait later in the game?

2 Answers 2


The rooms must be of the same type, upgraded to the same level and placed next to each other horizontally (with no gaps) in order to merge into each other. It is possible to build rooms of the same type but different upgrade levels next to each other and these will subsequently merge when they're upgraded to the same level.


I would also add that the rooms must be adjacent horizontally (not vertically), as that particular issue tripped me up the first find I tried to merge rooms in the game.

  • Same for me here :) Commented Dec 9, 2015 at 13:29
  • 1
    But you would just fall through the floor... Commented Dec 9, 2015 at 14:24
  • @JoshSpoors. Not if you have floors and stairs. Too bad there are no such things as stairs in Shelter...
    – Nolonar
    Commented Dec 9, 2015 at 15:16
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    or a slide perhaps? Commented Dec 9, 2015 at 16:29
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    @joshSpoors you'd think that if a vault can handle an elevator, then stairs should be as easy as Molerat Pie (not a Fallout item, but it should be). Commented Dec 21, 2015 at 15:27

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