Citadel Citadel is a block protection mod that provides a level of protection relative to the material used to create the protection. There are two linked concepts that Citadel uses to provide protection - reinforcement and security level.
Concepts
Reinforcement A reinforcement provides protection to a block from being broken. Each type of reinforcement material provides a different number of protections, with a protection being used up during each block break event. For example, if you protect a glass block with an iron ingot, you will have to break the glass block 250 times before it is actually broken.
Security Level
A reinforced block which is considered securable (configurable but includes anything openable like a door or fence gate, and any containers like furnaces and chests) can also have its allowed access limited to the individual which placed the block or a group to which they belong.
Groups Groups can be used to allow access to multiple people at once. You can create and manage several groups and give them permissions on your fortifications.
Modes
Reinforcement In this mode, a player can reinforce already existing blocks. To start, type /ctreinforcement (or /ctr) followed by an optional security level. If no security level is specified, blocks are secured at the private level. Once in this mode, hold a valid reinforcement material in your hand and click on the block to reinforce it. To prevent chat spam, only the first reinforcement is announced.
Single block mode
To provide feature compatibility with LWC, you can enter single block reinforcement mode by typing /ctprivate, /ctgroup, or /ctpublic. These are aliases for /ctreinforcement followed by the corresponding security level, with the exception that once a block is reinforced, reinforcement mode is disabled.
Fortification
In this mode, a player can place blocks that are reinforced. This is useful for building reinforced structures, or placing a lot of reinforced securable blocks. To enter this mode, hold a valid reinforcement material in your hand and type /ctfortify (or /ctf) followed by an optional security level. If no security level is specified, blocks are secured at the private level.
Information
In this mode, a player can easily see the status of all reinforce blocks by interacting with them. To enter this mode, type /ctinfo. (or /cti)
Bypass
Can be active alongside any other mode. In this mode, the player will bypass all reinforcements that they are able to access, so that blocks can be broken normally. The chance that they will receive the reinforcement resource back is (durability / material strength). To toggle this mode, type /ctbypass. (or /ctb)
Normal
To reset placement mode to normal, type /ctoff (or /cto) This will reset your placement mode, security level, and turn bypass mode off. Normal mode actually does allow a minimal free level of protection.
Materials
None (default) strength 5 STONE has strength 25 IRON_INGOT has strength 250 DIAMOND has strength 1800
Best Practices
Fortify mode is best because it protects everything as you go, you don't have to go back over it afterward.
Place double checks while in fortify mode. It will add fortification to both sides of the chest, and since both sides must be broken on a double chest, it gives you double the protection!
You can fortify things you want others to be able to use in public mode, this way they can use it, but not steal it.
You might want to store your most valuable items/chests away from your other chests so they will be hidden by proximityhider and surround them in fortified obsidian.