Ruined Portal

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A ruined portal is a naturally generated damaged nether portal, which spawns in both the Nether and the Overworld. It contains some decoration and a loot chest around it.

Generation[]

Ruined Portal underside in water — Underside of a ruined portal

Ruined portals are the only generated structures that generate in more than one dimension; they generate in all biomes in both the Nether and the Overworld. They can spawn underground, underwater, or exposed to the air. If they generate underground, they have air pockets around them. Natural terrain around ruined portals generates as netherrack. They also generate a mass of netherrack underneath them (including "stalactite"-like shapes, and this may contain blackstone deposits in the Nether). Giant ruined portals have 3 distinct designs, and normal ruined portals have 10 designs. When a ruined portal generates, it has a 5% chance to be a giant ruined portal, for about a 1.67% chance per giant portal design. This gives normal ruined portals a 95% chance, for a 9.5% chance per normal ruined portal design.^{[more information needed]}

	Biome
	Standard		Desert	Jungle	Swamp	Windswept hills		Ocean	Nether
Vertical placement	Underground (50%)	Surface (50%)	Partly buried	Surface	Ocean floor	In windswept hills (50%)	Surface (50%)	Ocean floor	Nether
Mossiness	0.2		0	0.8	0.5	0.2		0.8	0
Air Pocket	Yes	50%	No	50%	No	Yes	50%	No	50%
Overgrown	No		No	Yes	No	No		No	No
Vines	No		No	Yes	Yes	No		No	No
Blackstone	No		No	No	No	No		No	Yes

Ruined portals that generate underground do so at Y-level from 15 to n−n₂, where n is the highest block at the point of generation and n₂ is the height of the ruined portal structure. This means the terrain is always higher than or level with the top of the structure. Some ruined portal variants are short enough to generate completely on the surface.

Ruined portals that generate in windswept hills generate at y-level from 70 to n−n₂.

Ruined portals that generate partially buried do so at y-level n−n₂, plus a random integer from 2 to 8. This means that the structure has 2 to 8 layers raised above the surface.

In the Nether, ruined portals with air pockets generate from Y-level 32 to 100. Ruined portals without air pockets have a 50% chance to spawn from Y-level 27 to 29, and a 50% chance to spawn from Y-level 29 to 100.

Many blocks in ruined portals are replaced upon generation. A ruined portal is in a snowy biome if the temperature is less than 0.15.

Original Block	Replacing Block	Chance per Block
Block of Gold	Air	30%
Lava	Magma Block	On ocean floor: 100% Not on ocean floor: 20% Cold: 0%
Lava	Netherrack	Cold: 100% Not cold: 0%
Netherrack^{[n 1]}	Magma Block	Not cold: 7% Cold: 0%
Obsidian	Crying Obsidian	15% in Java Edition, 20% in Bedrock Edition
Stone Stone Bricks Chiseled Stone Bricks	Cracked Stone Bricks Stone Brick Stairs	50%×(1-Mossiness)
Stone Stone Bricks Chiseled Stone Bricks	Mossy Stone Bricks Mossy Stone Brick Stairs	50%×Mossiness
Any slabs	Mossy Stone Brick Slab	Mossiness
Any stairs	Stone Slab Stone Brick Slab	50%×(1-Mossiness)
Any stairs	Mossy Stone Brick Stairs Mossy Stone Brick Slab	50%×Mossiness
Any walls	Mossy Stone Brick Wall	Mossiness

↑ This includes netherrack generated as part of the netherrack "spread" through nearby terrain.

Structure[]

Ruined portals generate incomplete portal frames composed of obsidian and, sometimes along with crying obsidian, although nether portals cannot be activated with crying obsidian in the frame.^[1] Some frames generate flat on the ground, as if they toppled over. Others are free-standing separately, as if still being assembled/attached.

All ruined portals generate with a chest on Bedrock Edition, but on Java Edition the chest may be replaced if terrain overrides it. Each chest contains various golden items and items used to build portals such as obsidian and flint and steel.

Any ruined portal generated in the Overworld is surrounded with structures made of stone, stone bricks, and iron bars; in the Nether it is surrounded by blackstone variants and chains.

Currently there are 13 variants: 10 normal size portals and 3 giant portals in varying states of decay.

In Java Edition, ruined portals can be generated by the player by loading ruined_portal/portal_<1 to 10> or ruined_portal/giant_portal_<1 to 3> with a structure block. These ruined portals generate as they are stored, meaning they are not modified as detailed in the Generation section above. All portals generated this way create air pockets if generated in other blocks.

Overworld[]

Note that some blocks can be replaced with others (such as crying obsidian) upon generation. A full list can be seen below.

Structure name	Description	Consists of
`ruined_portal/giant_portal_1`	A large incomplete portal.	263 Netherrack 63 Stone Bricks 38 Stone Brick Slab 31 Obsidian 20 Stone Brick Stairs 18 Iron Bars 11 Lava 4 Chiseled Stone Bricks 2 Block of Gold 1 Chest
`ruined_portal/giant_portal_2`	A large incomplete portal.	237 Netherrack 55 Stone Bricks 30 Stone Brick Slab 29 Obsidian 22 Iron Bars 19 Lava 18 Stone Brick Stairs 6 Chiseled Stone Bricks 2 Block of Gold 1 Chest
`ruined_portal/giant_portal_3`	A large incomplete portal, with the most gold blocks, separate obsidian.	324 Netherrack 51 Stone Bricks 40 Stone Brick Slab 33 Lava 25 Obsidian 22 Iron Bars 6 Block of Gold 6 Chiseled Stone Bricks 6 Stone Brick Stairs 1 Chest
`ruined_portal/portal_1`	A small incomplete portal, with stone slabs and no lava.	55 Netherrack 11 Obsidian 10 Stone Slab 9 Stone Bricks 7 Stone 6 Stone Brick Stairs 3 Chiseled Stone Bricks 2 Block of Gold 1 Chest 1 Cracked Stone Bricks 1 Stone Brick Slab
`ruined_portal/portal_2`	A hanging incomplete portal.	115 Netherrack 26 Lava 19 Stone Bricks 14 Stone Brick Slab 11 Obsidian 10 Smooth Stone Slab 4 Stone Brick Stairs 2 Block of Gold 2 Iron Bars 1 Chest 1 Chiseled Stone Bricks 1 Mossy Stone Bricks
`ruined_portal/portal_3`	A small incomplete portal, with no gold block.	132 Netherrack 36 Stone Bricks 16 Stone Brick Slab 11 Obsidian 2 Lava 1 Chest
`ruined_portal/portal_4`	A small incomplete portal.	130 Netherrack 36 Stone Bricks 16 Stone Brick Slab 11 Obsidian 3 Lava 1 Block of Gold 1 Chest
`ruined_portal/portal_5`	A small portal, where the top of the portal has fallen over.	145 Netherrack 22 Stone Bricks 15 Obsidian 12 Stone Brick Slab 6 Stone 5 Stone Slab 3 Block of Gold 2 Mossy Stone Bricks 1 Chest 1 Cracked Stone Bricks 1 Lava 1 Stone Brick Stairs
`ruined_portal/portal_6`	A 5x5 portal, where the top center block is misplaced.	41 Netherrack 16 Obsidian 4 Stone Brick Slab 2 Stone Brick Stairs 1 Block of Gold 1 Chest
`ruined_portal/portal_7`	An incomplete portal submerged in lava.	92 Netherrack 21 Lava 12 Obsidian 3 Stone Brick Slab 2 Block of Gold 1 Chest 1 Stone Bricks 1 Stone Brick Stairs
`ruined_portal/portal_8`	An incomplete portal at the top of a staircase. The top has fallen into lava.	144 Netherrack 26 Lava 17 Obsidian 14 Stone Bricks 6 Stone Brick Stairs 4 Stone Brick Wall 3 Block of Gold 2 Chiseled Stone Bricks 1 Chest 1 Stone Brick Slab
`ruined_portal/portal_9`	A small incomplete portal.	63 Netherrack 11 Obsidian 11 Stone Brick Stairs 2 Block of Gold 1 Chest 1 Magma Block 1 Stone Brick Slab
`ruined_portal/portal_10`	An incomplete portal that has fallen backward into lava.	123 Netherrack 19 Lava 13 Obsidian 13 Stone Bricks 3 Chiseled Stone Bricks 3 Chain 3 Stone Brick Stairs 2 Block of Gold 1 Chest

Nether[]

Structure name	Description	Consists of
`ruined_portal/giant_portal_1`	A large incomplete portal.	263 Netherrack 63 Polished Blackstone Bricks 38 Polished Blackstone Brick Slab 31 Obsidian 20 Polished Blackstone Brick Stairs 18 Chain 11 Lava 4 Chiseled Polished Blackstone 2 Block of Gold 1 Chest
`ruined_portal/giant_portal_2`	A large incomplete portal.	237 Netherrack 55 Polished Blackstone Bricks 30 Polished Blackstone Brick Slab 29 Obsidian 22 Chain 19 Lava 18 Polished Blackstone Brick Stairs 6 Chiseled Polished Blackstone 2 Block of Gold 1 Chest
`ruined_portal/giant_portal_3`	A large incomplete portal, with the most gold blocks, separate obsidian.	324 Netherrack 51 Polished Blackstone Bricks 40 Polished Blackstone Brick Slab 33 Lava 25 Obsidian 22 Chain 6 Block of Gold 6 Chiseled Polished Blackstone 6 Polished Blackstone Bricks 1 Chest
`ruined_portal/portal_1`	A small incomplete portal, with stone slabs and no lava.	55 Netherrack 11 Obsidian 10 Polished Blackstone Slab 9 Polished Blackstone Bricks 7 Polished Blackstone 6 Polished Blackstone Stairs 3 Chiseled Polished Blackstone 2 Block of Gold 1 Chest 1 Cracked Polished Blackstone Bricks 1 Polished Blackstone Brick Slab
`ruined_portal/portal_2`	A hanging incomplete portal.	115 Netherrack 26 Lava 20 Polished Blackstone Bricks 14 Polished Blackstone Slab 11 Obsidian 10 Polished Blackstone Slab 4 Polished Blackstone Brick Stairs 2 Block of Gold 2 Chain 1 Chest 1 Chiseled Polished Blackstone
`ruined_portal/portal_3`	A small incomplete portal, with no gold block.	132 Netherrack 36 Polished Blackstone Bricks 16 Polished Blackstone Brick Slab 11 Obsidian 2 Lava 1 Chest
`ruined_portal/portal_4`	A small incomplete portal.	130 Netherrack 36 Polished Blackstone Bricks 16 Polished Blackstone Brick Slab 11 Obsidian 3 Lava 1 Block of Gold 1 Chest
`ruined_portal/portal_5`	A small portal, where the top of the portal has fallen over.	145 Netherrack 24 Polished Blackstone Bricks 15 Obsidian 12 Polished Blackstone Brick Slab 6 Polished Blackstone 5 Polished Blackstone Slab 3 Block of Gold 1 Chest 1 Cracked Polished Blackstone Bricks 1 Lava 1 Polished Blackstone Brick Stairs
`ruined_portal/portal_6`	A 5x5 portal, where the top center block is misplaced.	41 Netherrack 16 Obsidian 4 Polished Blackstone Brick Slab 2 Polished Blackstone Brick Stairs 1 Block of Gold 1 Chest
`ruined_portal/portal_7`	An incomplete portal submerged in lava.	92 Netherrack 21 Lava 12 Obsidian 3 Polished Blackstone Brick Slab 2 Block of Gold 1 Chest 1 Polished Blackstone Bricks 1 Polished Blackstone Brick Stairs
`ruined_portal/portal_8`	An incomplete portal at the top of a staircase. The top has fallen into lava.	144 Netherrack 26 Lava 17 Obsidian 14 Polished Blackstone Bricks 6 Polished Blackstone Brick Stairs 4 Polished Blackstone Brick Wall 3 Block of Gold 2 Chiseled Polished Blackstone 1 Chest 1 Polished Blackstone Slab
`ruined_portal/portal_9`	A small incomplete portal.	63 Netherrack 11 Obsidian 11 Polished Blackstone Brick Stairs 2 Block of Gold 1 Chest 1 Magma Block 1 Polished Blackstone Brick Slab
`ruined_portal/portal_10`	An incomplete portal that has fallen backward into lava.	123 Netherrack 19 Lava 13 Obsidian 13 Polished Blackstone Bricks 3 Chiseled Polished Blackstone 3 Chain 3 Polished Blackstone Brick Stairs 2 Block of Gold 1 Chest

Blocks[]

All ruined portals	Overworld	Nether
Block of Gold Chest Crying Obsidian Lava Magma Block Netherrack Obsidian	Iron Bars Stone Stone Slab Smooth Stone Slab Stone Bricks Stone Brick Slab Stone Brick Stairs Stone Brick Wall Chiseled Stone Bricks Cracked Stone Bricks Mossy Stone Bricks Mossy Stone Brick Slab Mossy Stone Brick Stairs Mossy Stone Brick Wall	Chain Polished Blackstone Polished Blackstone Slab Polished Blackstone Stairs Polished Blackstone Bricks Polished Blackstone Brick Slab Polished Blackstone Brick Stairs Polished Blackstone Brick Wall Cracked Polished Blackstone Bricks Chiseled Polished Blackstone

Loot[]

In Java Edition, each ruined portal chest contains 4–8 item stacks, with the following distribution:

Item	Stack Size ^[A]	Weight ^[B]	Chance ^[C]	Avg. per chest ^[D]	Avg. # chests to search ^[E]
Iron Nugget	9–18	⁴⁰⁄₃₉₈	46.4%	8.141	2.2
Flint	1–4	⁴⁰⁄₃₉₈	46.4%	1.508	2.2
Obsidian	1–2	⁴⁰⁄₃₉₈	46.4%	0.905	2.2
Fire Charge	1	⁴⁰⁄₃₉₈	46.4%	0.603	2.2
Flint and Steel	1	⁴⁰⁄₃₉₈	46.4%	0.603	2.2
Gold Nugget	4–24	¹⁵⁄₃₉₈	20.5%	3.166	4.9
Golden Apple	1	¹⁵⁄₃₉₈	20.5%	0.226	4.9
Enchanted Golden Axe^[F]	1	¹⁵⁄₃₉₈	20.5%	0.226	4.9
Enchanted Golden Hoe^[F]	1	¹⁵⁄₃₉₈	20.5%	0.226	4.9
Enchanted Golden Pickaxe^[F]	1	¹⁵⁄₃₉₈	20.5%	0.226	4.9
Enchanted Golden Shovel^[F]	1	¹⁵⁄₃₉₈	20.5%	0.226	4.9
Enchanted Golden Sword^[F]	1	¹⁵⁄₃₉₈	20.5%	0.226	4.9
Enchanted Golden Helmet^[F]	1	¹⁵⁄₃₉₈	20.5%	0.226	4.9
Enchanted Golden Chestplate^[F]	1	¹⁵⁄₃₉₈	20.5%	0.226	4.9
Enchanted Golden Leggings^[F]	1	¹⁵⁄₃₉₈	20.5%	0.226	4.9
Enchanted Golden Boots^[F]	1	¹⁵⁄₃₉₈	20.5%	0.226	4.9
Glistering Melon Slice	4–12	⁵⁄₃₉₈	7.3%	0.603	13.7
Golden Carrot	4–12	⁵⁄₃₉₈	7.3%	0.603	13.7
Gold Ingot	2–8	⁵⁄₃₉₈	7.3%	0.377	13.7
Clock	1	⁵⁄₃₉₈	7.3%	0.075	13.7
Light Weighted Pressure Plate	1	⁵⁄₃₉₈	7.3%	0.075	13.7
Golden Horse Armor	1	⁵⁄₃₉₈	7.3%	0.075	13.7
Block of Gold	1–2	¹⁄₃₉₈	1.5%	0.023	66.8
Bell	1	¹⁄₃₉₈	1.5%	0.015	66.8
Enchanted Golden Apple	1	¹⁄₃₉₈	1.5%	0.015	66.8

In Bedrock Edition, each ruined portal chest contains 4–8 item stacks, with the following distribution:

Item	Stack Size ^[A]	Weight ^[B]	Chance ^[C]	Avg. per chest ^[D]	Avg. # chests to search ^[E]
Iron Nugget	9–18	⁴⁰⁄₃₉₈	46.4%	8.141	2.2
Flint	1–4	⁴⁰⁄₃₉₈	46.4%	1.508	2.2
Obsidian	1–2	⁴⁰⁄₃₉₈	46.4%	0.905	2.2
Fire Charge	1	⁴⁰⁄₃₉₈	46.4%	0.603	2.2
Flint and Steel	1	⁴⁰⁄₃₉₈	46.4%	0.603	2.2
Gold Nugget	4–24	¹⁵⁄₃₉₈	20.5%	3.166	4.9
Golden Apple	1	¹⁵⁄₃₉₈	20.5%	0.226	4.9
Enchanted Golden Axe^[F]	1	¹⁵⁄₃₉₈	20.5%	0.226	4.9
Enchanted Golden Hoe^[F]	1	¹⁵⁄₃₉₈	20.5%	0.226	4.9
Enchanted Golden Pickaxe^[F]	1	¹⁵⁄₃₉₈	20.5%	0.226	4.9
Enchanted Golden Shovel^[F]	1	¹⁵⁄₃₉₈	20.5%	0.226	4.9
Enchanted Golden Sword^[F]	1	¹⁵⁄₃₉₈	20.5%	0.226	4.9
Enchanted Golden Helmet^[F]	1	¹⁵⁄₃₉₈	20.5%	0.226	4.9
Enchanted Golden Chestplate^[F]	1	¹⁵⁄₃₉₈	20.5%	0.226	4.9
Enchanted Golden Leggings^[F]	1	¹⁵⁄₃₉₈	20.5%	0.226	4.9
Enchanted Golden Boots^[F]	1	¹⁵⁄₃₉₈	20.5%	0.226	4.9
Glistering Melon Slice	4–12	⁵⁄₃₉₈	7.3%	0.603	13.7
Golden Carrot	4–12	⁵⁄₃₉₈	7.3%	0.603	13.7
Gold Ingot	2–8	⁵⁄₃₉₈	7.3%	0.377	13.7
Clock	1	⁵⁄₃₉₈	7.3%	0.075	13.7
Light Weighted Pressure Plate	1	⁵⁄₃₉₈	7.3%	0.075	13.7
Golden Horse Armor	1	⁵⁄₃₉₈	7.3%	0.075	13.7
Block of Gold	1–2	¹⁄₃₉₈	1.5%	0.023	66.8
Bell	1	¹⁄₃₉₈	1.5%	0.015	66.8
Enchanted Golden Apple	1	¹⁄₃₉₈	1.5%	0.015	66.8

↑ ^a ^b The size of stacks (or for unstackable items, number) of this item on any given roll.
↑ ^a ^b The weight of this item relative to other items in the pool.
↑ ^a ^b The odds of finding any of this item in a single chest.
↑ ^a ^b The number of items expected per chest, averaged over a large number of chests.
↑ ^a ^b The average number of chests the player should expect to search to find any of this item.
↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r All enchantments are equally probable, including treasure enchantments (except Soul Speed, and Swift Sneak), and any level of the enchantment is equally probable.

Most ruined portal structures contain enough obsidian to make a complete portal, although in the smaller portals, there may not enough because each obsidian has a 15%‌^{[JE only]} or 20%‌^{[BE only]} chance to be replaced by crying obsidian.

History[]

Java Edition
1.16	20w16a	Added ruined portals.
	20w17a	Ruined portals now generate less frequently.
	20w17a	Badlands no longer generate ruined portals using the "mountain" type, thus making ruined portals spawn at normal frequency in badlands.
	20w18a	Golden apples are now less common in ruined portal loot chests, having their weight changed from 40 to 15.
Bedrock Edition
1.16.0	beta 1.16.0.57	Added ruined portals.
	beta 1.16.0.59	Changed ruined portals generating in the Nether to use blackstone instead of nether bricks.
	beta 1.16.0.59	Ruined portal loot chests now roll 4-8 times instead of 4-6 to match Java.
1.16.100	beta 1.16.100.54	Ruined Portals now can generate with 4–12 glistering melons instead of only one.

Issues[]

Issues relating to "Ruined Portal" are maintained on the bug tracker. Report issues there.

Gallery[]

A ruined portal in a taiga biome.
A ruined portal found underground.
A giant ruined portal generated next to a desert and ocean biome using the Programmer Art resource pack.
A ruined portal that generated in a crimson forest in the Nether.
Loot from a ruined portal chest.
A ruined portal that generated in an abandoned village.
A ruined nether portal generated next to a shipwreck.
A giant ruined portal generated in the Nether.
A ruined portal generated within a bastion remnant.
Ruined portal in Badlands biome with a mineshaft behind it.
Ruined portal on the bottom of a river.
Jungle temple destroyed by ruined portal.
A ruined portal, which generated inside the hill.
A portal that generated on a river.
A ruined portal that generated on an iceberg in a frozen ocean.
A ruined portal chest containing an enchanted golden apple.
Snowy Plains village reaching to the neighboring savanna. There is also a ruined portal nearby.
Huge village along with the ruined portal, just near the world spawn.
Ruined portal generated in wooded badlands.
Huge ruined portal next to a savanna village.
Huge ruined portal with a lot of animals nearby.
Ruined portal generated in mountain meadow hill.
Ruined portal next to pillagers' tents.
Ruined portal generated along with mineshaft.
A ruined portal that is sticking out of a warm ocean.
A ruined portal that generated close to the bottom of a river.
A ruined portal in a mushroom fields biome.
Ruined portal in a village.
A ruined portal generated near a coral reef.
A portal in a warped forest.

Odd generation[]

A ruined portal generated partially buried in a desert.
An underground ruined portal that created a pocket of air at the bottom of a river.
A ruined portal generated over a ravine.
A ruined portal generated in lava.
A ruined portal completely submerged into lava.
Jungle leaves generated over a ruined portal. Some leaves caught fire from lava.
Ruined portal generated in jungle biome. Notice the starting forest fire.
Ruined portal that generated in the air.
Ruined portal broken by the shipwreck.
A leaf-covered ruined portal floating on the surface of the ocean.
A ruined portal spawned in the same place as village's house.