To echo [MENTION=518]JeffB[/MENTION], I'm not sure that's a game I want to play in!I put my players in mortal danger on a regular basis
And to also be more serious - it might be good or bad to have the main stakes of the game be whether the PCs live or die, but that is certainly not the only way to have a challenging game.If your campaign is safe, you aren't challenging your players.