Mushroom fields at or right next to spawn — the rarest overworld biome, and the only one where hostile mobs never spawn.
Java Edition 1.18 · 15 verified seeds · updated 2026-07-17
Explore this seedA mushroom island only 254 blocks from spawn — the one biome where hostile mobs never spawn.
Nearby biomes: Deep Lukewarm Ocean · Lukewarm Ocean · Mushroom Fields · Plains · Forest
Explore this seedA mushroom island only 280 blocks from spawn — the one biome where hostile mobs never spawn.
Nearby biomes: Deep Cold Ocean · Cold Ocean · Frozen Ocean · Mushroom Fields · Plains
Explore this seedA mushroom island only 369 blocks from spawn — the one biome where hostile mobs never spawn.
Nearby biomes: Warm Ocean · Desert · Deep Lukewarm Ocean
Explore this seedA mushroom island only 370 blocks from spawn — the one biome where hostile mobs never spawn.
Nearby biomes: Lukewarm Ocean · Deep Lukewarm Ocean · Mushroom Fields · Stony Shore
Explore this seedA mushroom island only 392 blocks from spawn — the one biome where hostile mobs never spawn.
Nearby biomes: Deep Ocean · Forest · Ocean · Taiga · River · Plains
Explore this seedA mushroom island only 396 blocks from spawn — the one biome where hostile mobs never spawn.
Nearby biomes: Deep Ocean · Cold Ocean · Old Growth Spruce Taiga · Ocean · River · Dark Forest
Explore this seedA mushroom island only 400 blocks from spawn — the one biome where hostile mobs never spawn.
Nearby biomes: Deep Ocean · Ocean · Birch Forest · Dark Forest · Deep Lukewarm Ocean · Lukewarm Ocean
Explore this seedA mushroom island only 400 blocks from spawn — the one biome where hostile mobs never spawn.
Nearby biomes: Deep Ocean · Ocean · Plains · Deep Cold Ocean · Beach · Cold Ocean
Explore this seedA mushroom island only 400 blocks from spawn — the one biome where hostile mobs never spawn.
Nearby biomes: Deep Lukewarm Ocean · Lukewarm Ocean · Forest · Deep Ocean · Savanna · Beach
Explore this seedA mushroom island only 409 blocks from spawn — the one biome where hostile mobs never spawn.
Nearby biomes: Snowy Taiga · Deep Cold Ocean · Cold Ocean · Snowy Plains · River · Taiga
Explore this seedA mushroom island only 410 blocks from spawn — the one biome where hostile mobs never spawn.
Nearby biomes: Deep Ocean · Lukewarm Ocean · Deep Lukewarm Ocean · Ocean · Forest · Beach
Explore this seedA mushroom island only 440 blocks from spawn — the one biome where hostile mobs never spawn.
Nearby biomes: Cold Ocean · Deep Frozen Ocean · Deep Cold Ocean · Beach · Taiga · Forest
Explore this seedA mushroom island only 445 blocks from spawn — the one biome where hostile mobs never spawn.
Nearby biomes: Plains · Deep Frozen Ocean · Frozen Ocean · Cold Ocean · Snowy Plains · Deep Cold Ocean
Explore this seedA mushroom island only 450 blocks from spawn — the one biome where hostile mobs never spawn.
Nearby biomes: Warm Ocean · Deep Lukewarm Ocean · Savanna · Lukewarm Ocean · Forest · Desert
Explore this seedA mushroom island only 452 blocks from spawn — the one biome where hostile mobs never spawn.
Nearby biomes: Lukewarm Ocean · Savanna · Deep Ocean · Deep Lukewarm Ocean · Ocean · Beach
Mushroom fields are the rarest biome in the overworld — most worlds put them thousands of blocks out to sea. Every seed here has a mushroom island within 600 blocks of spawn, and several put you practically on the mycelium.
1.18 (Caves & Cliffs Part II) rewrote terrain generation completely: world height stretched to Y −64…319, six new mountain biomes, and cave systems bigger than anything before it. It's also where modern seeds begin — a 1.17 seed generates a totally different world — and 1.18.2 is still a heavily-played modpack version. Every seed below was verified on 1.18 generation itself.
Verified for Java Edition 1.18 (Caves & Cliffs Part II). Biomes, terrain and structure locations are identical across 1.18 – 1.18.2, so 1.18.2 modpack worlds match these maps.
Playing the current version instead? See the latest mushroom island seeds — or the same list for 1.20 · 1.19 · 1.16. All 1.18 lists live under best 1.18 seeds.