Getting a repair tool in Subnautica 2 saves you time and resources when your tadpole gets damaged, since you can just use the magic of technology to repair it rather than replacing it. There’s also a small handful of areas you can only access using a repair tool. It makes damaged hatches whole again, so you can operate them and see what treasures, if any, lie in wait behind them. You can get a repair tool early, but it’s incredibly easy to miss.
