Survival Mode is a gamemode where the player starts with zero resources, which means the player has to start from scratch by mining wood and so forth. Survival Mode introduces many features that are not available in Creative Mode, but also lacks other Creative features like infinite blocks and flying.
Health & Damage
Main Article: Health
The main feature of survival mode is the appearance of the health bar. The player will take damage from falling from high places, being attacked by hostile mobs and other players, etc.
If the player's health bar is completely depleted, he/she will die, dropping all of his/her inventory, and with the exception of hardcore mode, he/she may respawn.
Main Article: Hunger
In Survival Mode, there is also a hunger bar, which must be continuously replenished by eating Food. It allows the player to sprint (move faster), and also allows the player to regenerate health.But if the player is in Peaceful Mode the hunger won't go done.
To meet the requirement of food, the player must start Farming. The player can farm items like Potatoes, Carrots, Wheat and Beetroots, which can be crafted into other foods as well. They can also be used for breeding Mobs, who can be killed for a supply of meat, leather and more.
Experience (Also known as EXP or XP) is another survival feature added in update 0.12.1. The experience bar is only visible in survival mode, and only in survival can the player make use of the experience he/she has obtained by enchanting or repairing items.