Hollow Hill
Rising out of the otherwise flat terrain of the Twilight Forest, Hollow Hills are conspicuous mounds of dirt that conceal a vast hollow cave packed with stalactites and stalagmites, some of which are formed with precious ores and minerals. Explorers have found these large dome-shaped hills in three distinct sizes, large enough to be detected and marked on a Magic Map, with an appropriate icon indicating its size. Some hills have been found to have other caves and ravines cutting into them, so those adventurers tunneling beneath the earth may find themselves inside one of these hills in their explorations.
Hollow Hills are an excellent source of ores to be mined and treasures to be looted, with the more valuable loot contained in the larger hills. The treasure to be found tend to be guarded by the dangerous creatures abound in the darkness, which can easily spell the doom of an unwary explorer. Unfortunately, it also seems that the larger the hill, the more creatures that live there. Explorers should remember the basic rules of caving, and never tunnel directly down into a Hollow Hill; instead, approach from the side and bring plenty of light sources to illuminate the interior as various spawners are around every corner.
Small Hollow Hills
| Small Hollow Hill | |
|---|---|
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| Biome | Oak Savannah Twilight Forest Dense Twilight Forest Mushroom Forest Spooky Forest |
| Consists of | Various Ores |
| Boss | Swarm Spider Kobold Redcap Goblin Zombie Spider |
| Map Icon | 
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| ID | twilightforest:small_hollow_hill |
Small hills measure approximately 30 metres across and usually contain the basic minerals such as Coal, Iron, with Redstone and Glowstone occasionally being found. Explorers can expect to find a couple of chests appear in quantities up 0 to 2 (also be more but wery rare. max found 6 chests). containing common tools and items such as food, arrows, ladders and torches, but rarely, a valuable Ore Magnet may be found along with a Diamond, Steeleaf and Music disc - Findings. Swarm Spiders, Redcap Goblins and Kobolds reside in these hills, with other creatures common to the Overworld as well.
Medium Hollow Hills
| Medium Hollow Hill | |
|---|---|
 | |
| Biome | Oak Savannah Twilight Forest Dense Twilight Forest Mushroom Forest Spooky Forest |
| Consists of | Various Ores |
| Boss | Swarm Spider Kobold Slime Beetle Fire Beetle Redcap Goblin Redcap Sapper Spider Creeper Witch |
| Map Icon | 
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| ID | twilightforest:medium_hollow_hill |
Medium hills are about 60 metres in diameter, and 25+ metres tall in the center. The interior becomes more spacious, but this has also attracted more and deadlier creatures. Gold and Lapis can be found here as well as Diamond and Emerald being seen, albeit rarely. As the value of the ores increase, so do the treasures - up 4 to 7 chests can usually be found in a medium hill containing Ironwood Ingots and Transformation Powder, along with unique artifacts such as a Moonworm Queen, the Peacock Feather Fan, the Uncrafting Table and the Music disk - Wayfarer. Fire Beetles and Redcap Sappers live in medium hills, in addition to those seen in small hills.
Large Hollow Hills
| Large Hollow Hill | |
|---|---|
 | |
| Biome | Oak Savannah Twilight Forest Dense Twilight Forest Mushroom Forest Spooky Forest |
| Consists of | Various Ores |
| Boss | Slime Beetle Fire Beetle Pinch Beetle Redcap Goblin Redcap Sapper Twilight Wraith Skeleton Cave Spider Creeper Endermen Witch |
| Map Icon | 
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| ID | twilightforest:laarge_hollow_hill |
The largest hollow hills cover an area around 112 metres in diameter, giving them an interior volume of over 175,000 blocks. Every type of ore can be found in these cathedral-like caverns. There are up to 12 treasure chests, containing the most valuable treasures such as Diamonds, Steeleaf, and Block Ironwood wery rare appears is Music disc - Maker. Naturally, one will find the most dangerous monsters here, including Twilight Wraiths, Witches, Slime Beetles, and Pinch Beetles.