Fallout Shelter has become a huge success in the app store over the last few days. In the game, you can purchase lunchboxes (similar to card packs in other games) which give you 4 random things for your shelter. The lunchboxes normally cost $0.99 each but with this glitch you can get a virtually unlimited quantity of them for free! Below are the requirements and steps for this glitch.
Requirements: If you have done some of the "objectives" on a shelter already you are going to have to start a new shelter. You can start a new shelter on the screen that pops up when you first start the game.
Step 1: Keep doing objectives until you reach the objectives "Equip 1 Dweller with an Outfit" AND/OR "Sell 1 Weapon or Outfit." If you reach one and not the other, keep doing OTHER objectives until you have both of them available.
It is IMPORTANT that you DO NOT complete either of the objectives. Doing so will ruin the glitch and you will have to start a new shelter again. You can do the tasks that the objectives give (ex. Equip 1 Dweller with an Outfit) however you CANNOT claim the reward for that objective.
Step 2: Complete the third objective that is listed with the previously mentioned objectives.
Step 3: Once you complete that objective, complete the next one and so on until you make a "loop" back to the one you completed in step 2. You should have a loop of 3 objectives and 2 of them should give lunchboxes. If the objectives seem too hard you should create another shelter and try again.
Step 4: Build your shelter with buildings that will allow you to complete the 3 objectives in your loop very quickly. The glitch allows you to complete this loop an unlimited amount of times, granting you an unlimited amount of lunchboxes!
Below is a video where I show you the steps and explain the glitch in a bit more detail