There are various TV programs that did this. Expedition Robinson, originated in Sweden and licensed in the US as a show named Survivor (among 39 other licensees

There are various TV programs that did this. Expedition Robinson, originated in Sweden and licensed in the US as a show named Survivor (among 39 other licensees, according to Wikipedia). My parents used to watch a variant produced for Dutch television. From what I could pick up, the crew provided varying degrees of resouces and support. There was a "punishment" were one would be sent into isolation for a certain period. I suppose contestants were at least monitored for safety to some degree.