Fallout Shelter
35 Achievements
1000
80-100h
Hard Work is Happy Work
Successfully completed 50 Room Rushes
50
10.72%
How to unlock the Hard Work is Happy Work achievement in Fallout Shelter - Definitive Guide
havocofsmeg
TrueAchievements
TrueAchievements
Simply select a room and press
. This will bring up the rush confirmation screen, which also shows you the probability of success, and press 
. Rinse and repeat 50 times. As the description suggests, failed rushes will not count, and failure will also have negative side effects on your vault such as Radroach attacks and fires, which in turn decrease your vault dwellers health and happiness, so if the probability is over 50%, don't chance it, and wait for the probability to be in your favour, which is about 45-47%. The probability will decrease over time, so it's best to be patient.
UtG Mist
TrueAchievements
TrueAchievements
Select the appropriate room based on pregnant women, fail percentage, overall level of the room, and the ability of those dwellers to combat the hazards. Once you've decided press
then to rush the room. Now just repeat 50 times over.
RaptureFallen
To do a Room Rush, you first have to highlight any type of production room. When you have done that, simply press 
to initiate the Room Rush. When you press it you will see your success rate for that particular room. Successfully completing the rush will yield the normal rewards for that production room, plus you will also receive some caps and experience as well. Failing the rush, however, will cause a negative random event to happen, such as a fire or a radroach infestation that your dwellers will have to deal with before they can continue with production. Each successful or failed rush will increase the odds for failure on the next rush, but having dwellers with high Luck will improve your chances for success.
DaEastside
Room Rushes are performed by pressing 
when highlighting a Production room. Doing that will speed up the production of the room and will net you some caps and xp for the dwellers assigned to that room. However, rushes can fail and cause an incident (Radroach/Mole Rat/Radscorpion infestations or fire). If a rush is successful, the assigned dwellers' Happiness will raise by 10%, it it fails it will decrease by 10%. The chance of a rush failing will also increase after each rush attempt by 10% each time and will only reset when you exit the game or after a long period of time.
Before performing a rush, you can see the incident rate, it is tied to the dwellers assigned to that room, their number, their S.P.E.C.I.A.L stats and levels. For example: You will have more chances to succeed a rush in a Generator room if you assign dwellers with high Strength stat to that room. It doesn't need to be 50 different rooms, because you can perform rushes in the same room and it will still count for this trophy if it succeeds.
Naivz
stratege.ru
stratege.ru
. If successful, you will speed up the production of resources in this room and get a few caps and XP. In case of failure, you will suffer misfortune in the form of a fire or rad cockroaches and a little XP for eliminating the incident.The higher the level of the SPECIAL parameter and luck, the higher the chance of a favorable outcome