There are 23 legendary dwellers in the game, all of which are characters from the fallout series. This achievement is completely luck based and as such will either come relatively quickly or be one of the last you unlock. Maybe a coincidence, but I wouldn't risk it. I found when I did this my achievement progress would stop updating. Edit: One final precaution, only open the lunchboxes when you have the present time set.

Imagine how much that would have cost if you'd purchased them. Update: It has taken me a grand total of 631 lunchboxes to get 20 legendary characters. Reverting back to the present each time stops this happening. NOTE: Make sure to go back to the automatic date time, if you continue to advance 7 days each time the game seems to crash. 11) Alt Tab back to the date time window and repeat from step 6 This should allow you to get infinite lunchboxes, one every 10-20 seconds. 9) Alt tab back to the date time window and enable 'Set time automatically' 10) Alt tab back to the game so the in-game time re-adjusts. 8) Click to collect all daily rewards including the lunchbox.

7) Alt tab back to the game, it should reload in about 1 second and display a completed daily report.

4) Minimise Fallout Shelter window 5) Open the 'Adjust Date/Time' Setting in Windows 10 6) Turn off 'Set time automatically' and click the change date and time button, adding exactly 7 days to the current date. 1) Create a new vault 2) Build the minimum power, water and food resources 3) Have however many dwellers you wish inside the vault.

NOTE this will only work on Windows 10, not Xbox (because you can't adjust the date, only time zones on Xbox One). For a quick and free way to gain lunchboxes that are needed to unlock legendary characters, you can do the following.

Fallout shelter cheats ps4