Hardcore Mode

 is an optional gameplay mode in Fallout: New Vegas that increases the challenge of the game. In this mode stimpaks heal over time, Rad-Away removes radiation over time, ammunition has weight, dehydration is a constant concern, you must have regular sleep cycles, food doesn't heal health, instead you must eat to survive, and to heal limbs you must use a medical brace or a doctors bag.

For beating the whole game from start to finish in hardcore mode, the players get the Hardcore achievement/trophy.