Best sulfur caves seeds in Minecraft for 2026 give you a guaranteed head start on exploring the new biome added in the Chaos Cubed update (Java 26.2, Bedrock 26.30). Finding a sulfur cave in a random world can take time, but the right seed puts you next to a surface spring or directly above a massive cave system from day one. This list covers five confirmed seeds with exact coordinates for both editions.
- All seeds work on Java Edition 26.2 and Bedrock Edition 26.30 or later.
- Seeds that previously required the Chaos Cubed experimental toggle no longer need it — all content is live in the full release.
- Since Java 26.2 and Bedrock 26.30, terrain generates identically between editions, so all seeds below work on both.
- Sulfur caves generate most often under flat terrain near deserts and swamps.
- Use /locate biome minecraft:sulfur_caves in any world if these do not suit you.
- Use Chunkbase or MCSeedMap to preview sulfur cave locations for any seed before loading in.
What Makes a Good Sulfur Cave Seed?
The best sulfur cave seeds share a few traits. The most useful ones have the biome accessible from the surface — either through a large sulfur spring or a rare surface generation where the cave pokes above ground. These let you reach the biome quickly without deep mining. Seeds that stack a sulfur cave alongside a nearby ancient city, mineshaft, or village are especially good for survival starts because you get multiple objectives in one location.
Knowing how to survive sulfur caves before loading into any of these seeds is strongly recommended. Pack milk buckets for noxious gas, armor with Feather Falling boots for geysers, and a sword with Bane of Arthropods for cave spiders. See the full survival guide before your first descent.
Seed 1 — Massive Surface Sulfur Cave With Ancient City Below
Seed: -1906430016536484312
Coordinates: X: -550, Y: 70, Z: -120
Edition: Java 26.2 / Bedrock 26.30
This is the standout seed of the 2026 community finds. You spawn in a peaceful forest next to a pillager outpost and a plains village. Walk approximately 300 blocks west and you will arrive at a wide lake surrounded by steep mountains. Look closely at the cliff faces and you will see patches of yellow sulfur blocks and deep red cinnabar blocks exposed on the surface — the sulfur cave biome has generated above ground here across a large area.
What makes this seed exceptional is what sits directly below it. Dig down through the surface cave section and the biome continues all the way to Y level -54, with an ancient city sitting inside the same cave system. This is one of the few confirmed seeds where an ancient city and a sulfur cave overlap in a single cave structure. You can mine sulfur and cinnabar blocks, catch sulfur cubes for your base, and loot an ancient city all in one deep dive.
Bonus: Sulfur cubes have been spotted hopping around the surface lake area during the day, since the game registers the surface terrain as part of the cave biome. This means you can catch your first sulfur cube without going underground at all.
Seed 2 — Closest Spawn to a Surface Sulfur Pool
Seed: -6508724409170388097
Coordinates: X: -27, Y: 17, Z: 125
Edition: Java 26.2 / Bedrock 26.30
This seed is the fastest one for reaching a sulfur cave in a fresh survival world. You spawn in a plains biome that quickly blends into savanna. Walk south and slightly west and you will find a pumpkin patch next to a ravine. A sulfur pool sits right on the surface at the coordinates above, with noxious gas bubbling visibly from the water — exactly the surface indicator described in the sulfur springs guide.
From this pool, you can jump into the ravine directly or dig a staircase beside the pool to drop into the sulfur caves below. This is the most beginner-friendly seed on the list — the biome entrance is within walking distance of spawn and requires no long surface journey. A trial chamber also generates nearby, giving you access to a trial spawner and its loot pool once you have geared up from the cave.
Best for: First-time sulfur cave explorers and players who want to dive straight into the new content on day one of a world.
Seed 3 — Hidden Sulfur Caves Under the Ocean Near Snowy Mountains
Seed: -2015233045697150761
Coordinates: X: 258, Y: -5, Z: -29
Edition: Java 26.2 / Bedrock 26.30
This seed takes a completely different approach. You spawn near stunning frozen peaks and snowy slopes — great mountain terrain for a scenic base. Turn east and walk toward the ocean. Beneath that ocean, the sulfur cave biome spreads out across a large underground network. The cave sits fully below the ocean floor, so there are no surface pools visible from above. You will need to mine down through the seafloor or approach from the mountain side to access it.
The underground cave system here is one of the largest in any confirmed 2026 seed, making it ideal for bulk collection of sulfur blocks and cinnabar blocks. Build your overworld base in the snowy mountain area and tunnel straight down at the coordinates to break through into the cave from above. The mountain terrain is also excellent for the hillside mountain base build style.
Best for: Players who want both a scenic surface build location and a large underground sulfur cave system to mine extensively.
Seed 4 — Desert Surface Sulfur Cave With Deep Grass Blocks
Seed: 403300388
Coordinates: X: 9808, Y: 64, Z: 9872
Edition: Java 26.2 / Bedrock 26.30
This is one of the most unusual sulfur cave seeds found in 2026 and is worth the longer travel time to reach it. You spawn in a snowy slopes biome. The sulfur cave coordinates are far from spawn, so plan for a long overland journey or use an elytra to cover the distance quickly.
When you arrive, a sulfur cave biome has surfaced in a desert — the yellow sulfur and red cinnabar blocks blend into the sand in a visually striking way that is unlike any other surface generation type. A ruined nether portal sits close by, giving you early nether access for fire resistance ingredients and other resources. The strangest part of this seed is that the cave continues all the way down to Y -54 while still generating grass blocks at those depths, a known generation quirk that makes this world genuinely unusual to explore.
A woodland mansion also generates within a few hundred blocks of the area, giving you a secondary objective nearby.
Best for: Experienced players who want the most unusual and visually striking sulfur cave generation available in 2026.
Seed 5 — Surface Sulfur Cave Next to a Flower Forest
Seed: -527736360947159823
Coordinates: X: -274, Y: 64, Z: 398
Edition: Java 26.2 / Bedrock 26.30
This seed offers the most visually beautiful sulfur cave surface generation on the list. Spawn in a forest biome bordering plains. Walk south a few hundred blocks and angle slightly west. You will reach an aqua-colored lake next to a flower forest — the tinted water is the giveaway that the sulfur cave biome is present. Sulfur and cinnabar blocks cover the ground around the lake, and sulfur cubes bounce around at the flower forest edge in daylight.
The color contrast here is exceptional for screenshots — the red and yellow of the sulfur cave biome against the colorful flowers and bright lake water is unlike anything else in the vanilla game. The surface generation makes catching your first sulfur cube easy without any underground preparation. Take one home in a bucket, start your sulfur cube farm, and use the duplication guide to grow your population from there.
Best for: Players who want the most scenic introduction to the sulfur caves biome and an easy first sulfur cube catch above ground.
Quick Reference — All Five Seeds
- -1906430016536484312 — surface cave + ancient city below, X: -550, Y: 70, Z: -120
- -6508724409170388097 — closest to spawn surface pool, X: -27, Y: 17, Z: 125
- -2015233045697150761 — large cave under ocean near snowy mountains, X: 258, Y: -5, Z: -29
- 403300388 — desert surface generation with deep grass, X: 9808, Y: 64, Z: 9872
- -527736360947159823 — surface cave next to flower forest, X: -274, Y: 64, Z: 398
How to Use These Seeds
To load a seed on Java Edition: click Singleplayer, then Create New World, then More World Options, and paste the seed number into the seed field before creating the world.
To load a seed on Bedrock Edition: tap Create New World, scroll down to the Seed field under World, and paste the seed number. All Chaos Cubed content is enabled by default in Bedrock 26.30 — no experimental toggle is needed.
To find the sulfur cave biome on any seed including these, open chat and type /locate biome minecraft:sulfur_caves with cheats enabled. This returns the nearest sulfur cave coordinates directly. For a visual map of any seed, use Chunkbase’s seed map tool (select Java 26.2 or Bedrock 26.30 as the version) and set the Y-level to below 60 to see sulfur cave biome locations across the whole map.
How to Find More Sulfur Cave Seeds
The five seeds above are the strongest community-confirmed options as of June 2026. New seeds are being discovered daily as players explore the update. The fastest way to find your own is to search Reddit communities like r/minecraftseeds filtered to posts tagged with Chaos Cubed or sulfur caves, or to use the Chunkbase seed map tool to check your current world seed for sulfur cave locations before you even start walking.
For everything you need once you are inside a cave, see the sulfur caves survival guide and the full sulfur caves location guide. For the complete breakdown of what you can collect and build with the new blocks, see the sulfur blocks and variants list and the cinnabar guide. For a broader look at the best world seeds in 2026 across all content, see the best Minecraft seeds for 2026.
Minecraft is available on Minecraft.net, Google Play, and the Xbox Store.
