Twilight Forest Technical Blocks

Twilight Forest Technical Blocks refers to a variety of blocks that appear in NEI, but are not normally acquired in the game or are not necessarily meant to be acquired in-game and are instead used for world generation or some other purpose. These blocks do not function properly when spawned in with NEI and placed in the world and are instead serving some in-game function.

Boss Spawner[edit]

The Boss Spawner (has item ID 1500) is used to spawn the Lich and the Naga in Lich Towers and Naga Courtyards, along with the Hydra in Hydra Lairs. These blocks cannot be obtained normally in the game, as when the player approaches, the respective mob automatically spawns and the player does not have enough time to collect the Boss Spawner block. When the block is placed by the player, it will still spawn mobs. There are three states to the Boss Spawner itself: item ID 1500, which spawns a Naga, item ID 1500:1, which spawns a Lich, and item ID 1500:2, which spawns a Hydra.

Miscellaneous Blocks[edit]

Two types of miscellaneous technical blocks exist: the Twilight Forest Portal and the Twilight Forest Trophy.

The Twilight Forest Portal is created upon entering the Twilight Forest through a Twilight Forest Portal or by throwing a Diamond into a 2x2 pool of Water surrounded by flower-topped grass. This block has item ID 1514, is not used in any crafting recipes and cannot be crafted or obtained normally, similar to a Nether portal block in vanilla Minecraft. For more information, see Twilight Forest.

The Twilight Forest Trophy is the technical block used for the Hydra Trophy to have it be placed in the world. Placed Hydra Trophies have the item ID of 1524, as does the Twilight Forest Trophy item. This item is normally unobtainable and cannot be crafted or used in recipes, but can be used to place down a Hydra Trophy in the world through unconventional means. For more information, see Hydra.


  • When a Twilight Forest Portal with ID 1514 is spawned in, it can be placed on the ground normally to transport the user to the Twilight Forest. If two of these are placed adjacent to one another or if a block update occurs next to one of them and there are not portal blocks occupying two of the blocks adjacent to the "triggered" block, instead of simply disappearing as Nether Portal blocks from vanilla Minecraft would, the updated block(s) turn into water source blocks.