Survival mode focuses on a unique survival experience by adding things like with player claims, right - click crop harvest, tree felling by chopping the bottom block and so on.
You start with 100 claim blocks and gain 100 more for every hour you play up to 2000 claim blocks.
Noone can build or grief your claim, and if you want to play with friends you can add them to the claim.
Due to the limited size of the Nether & End dimensions, they will occationally be reset.
Because of this, player claims inside these dimensions are therefore disabled.