Mechanic

Yes. The official FAQ says you can join on Roblox and it is free to play. Create a Roblox account, then join the experience. Progress saves automatically.

Open the in-game phone and use the Jobs app, or walk into a workplace and start a shift. Every job adds to the same total work XP, so switching careers does not reset the ladder that raises your income. You can also buy dollars from the in-game store with Robux.

No. Welcome to Bloxburg has no promo-code box and no active or expired promo codes. Pages that ask for your Roblox password in exchange for cash are not an official reward path. Dollars come from work, events, daily rewards, and the in-game store. Blockbux is the separate premium currency.

Unpaid bills shut off your electricity. Pay them from the phone under My Plot, then place a Power Box in Build Mode and turn that box on outside Build Mode. The phone Settings app can turn on Automatically Pay Bills. The Premium game pass halves bills.

There are 14 jobs. Since Version 0.12.6 they pay a similar amount per minute. The main inputs are your total work experience, up to level 100, plus efficiency and your moods. A single job's own level does not set a separate pay rate. Pick the shift whose tasks you can repeat cleanly.