Logo-myc 40 Decay contains information about the Mystcraft mod.
Decay is the symptom of an unstable Age. Decay manifests as a simple block, with the approximate toughness of
Decay block

A Decay Block.

dirt. Decay blocks quickly spread horizontally and down. Decay blocks will replace other blocks including obsidian and bedrock when they spread, but they do not spread to air. Like sand or gravel, decay blocks will fall if there are no other blocks directly beneath them. In fact, this is their most dangerous property; as decay spreads rapidly downwards, eventually, it reaches the Void, which means that all blocks directly above it will fall into the Void as well. Eventually, decay will spread across the map, consuming and destroying the entire world and rendering the Age lifeless. Adding insult to injury, blocks will occasionally catch on fire or even explode upon transforming into decay.


Decay crater

A crater caused by decay blocks.

Decay blocks are soft and easy to destroy, but players often have no idea of their presence until it is too late. Warning signs such as growing craters serve to inform the player of their plight. Soon small indents in the terrain will become holes that go all the way to the Void. These craters will eventually spread to the entire age and destroy nearly all blocks that exist in that age.

Floating blocks will not be affected by decay occurring beneath them, so safe platforms may be constructed by quick thinking players. However, the usefulness of safe platforms on otherwise destroyed ages is debatable.

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Safe platform, untouched by decay. Scarcity of resources makes it pointless, though.

Players who are worried about others wandering about their ages unsupervised can put unstable books on display, possibly even with enticing labels meant to tempt over-greedy explorers. These makeshift trap books ensure that those with ill intentions are trapped until the player decides to rescue them.

In the event that decay is found, players are advised to vacate the age, as players who die in an age will respawn on that same age, and if there is no safe ground to spawn on, they will be unable to recover.

Stopping DecayEdit

If small surface patches of decay are found, players can dig out the Decay blocks by hand or with a shovel. However, simply stopping one pocket of decay will not stop other pockets from growing, all decay must be dealt with in order to stabilize an age. This is nearly impossible by hand.

The ability to re-write books in order to stabilize them is planned, with players able to cross out symbols that add instability or write in symbols that remove instability. However, this will lead to the world changing when players revisit it. Small changes will be possible while preserving player made structures and alterations. Large changes however, will cause the original link to be broken and a new link established, and the rewritten age will not show any signs of previous player interaction.

Outside of game, Decay can be disabled by setting the options.decay property to false in the mystcraft_config.txt file found in the .techniclauncher\technicssp\config directory for Technic 7.2.6.

Testing for DecayEdit

A simple way to test for decay is to fill up suspicious spots with blocks until the surface is level. Any change can be attributed to decay.


Without decay on.


With decay on.

Decay can cause lag. Massive amounts of lag is a great way to know if there is decay.

Sources: Edit

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