Tutorial:Adventure survival

Surviving in Adventure mode can be very difficult because you can not place blocks or break them. However, it is still possible to survive in this mode by obtaining resources from loot chests and from killing mobs, among other things.

The way to survive is choosing a normal world with generated structures. This is because there are jungle pyramids, mineshafts, desert pyramids, woodland mansions, shipwrecks, villages, dungeons, pillager outposts, strongholds, buried treasures, ocean ruins, ruined portals, igloos, swamp huts, nether fortress, bastions, nether fossils, end cities, ocean monuments, ancient cities, and trial chambers which can all be looted. If you want to, you can also enable "Bonus Chest" to generate a bonus chest. Once the terrain is loaded, using command /gamemode adventure @s will switch the player into Adventure mode. If you want to, you can use a seed with a stronghold that has an active end portal (because of the fact that you can't insert eyes of ender into end portal frame in Adventure mode [unless you’re on a version like 1.7.10]), which have a chance of 1 in 1,000,000,000,000 to spawn.

When you first spawn into your world, kill any mobs you come across, except for villagers, but make sure that you leave at least 2 of each animal, for breeding later. Try to sprint and jump as little as possible to save food. Killing sheep can be useful for their mutton, but remember that there is no use making a bed with their wool, as it cannot be placed in Adventure mode(version dependent). However, you can sleep in beds inside village houses.