Minecraft wiki entry for Gathering_resources_on_peaceful_difficulty, associated text: 1 Achievable In Peaceful
1.1 Bones
1.2 Bone Meal
1.3 Ender Pearls
1.4 Gunpowder
1.5 Magma Cream
1.6 Prismarine Crystals
1.7 Rotten Flesh
1.8 Slimeballs
1.9 Spider Eye
1.10 Sponges
1.11 String
1.12 Sugar
2 Not Achievable in Peaceful
2.1 Blaze Rods
2.2 Ghast Tear
2.3 Prismarine Shards
2.4 Shulker Shell
2.5 Trident
2.6 Wither Skeleton Skull
3 Spawnable on Peaceful
3.1 Bee
3.2 Ender Dragon
3.3 Evoker‌[Bedrock Edition only]
3.4 Hoglin
3.5 Llama
3.6 Piglin
3.7 Polar Bear
3.8 Shulker
3.9 Vindicator‌[Bedrock Edition only]
3.10 Wolf
4 See also