It will be a short discussion about repairing your train in the game, Voidtrain.
For this purpose, you must switch to your hammer by holding T. Usually, the hammer is used to repair different things. Anything that shows less than 100% can be repaired.
It would be best if you pressed the left button of your mouse to repair things. Now, start repairing everything that needs it. To do it, you don’t require additional resources except for the floor. There are so many things that need other resources to get repaired.
Such as, the floors must have the wood to be repaired. All the other items can be repaired without any hassle.