Exclusion Zone

An incredibly cursed pile of spaghetti code that builds into a more-or-less functional mod for Fabric 1.21

What does it do?

• Adds a few utilities that I miss from modded when playing Vanilla
• A dangerous new custom biome
• Some structures, which create a small pocket of said custom biome in the area
• Some unique loot items with no purpose besides being display pieces
• A suspiciously malicious-looking item 👀
• Some fun references to various games, other mods, etc.
• Potion of Milk

Mechanics

The Exclusion Zone is intended to be used on a server standalone, to add a little flavor to Vanilla Minecraft, without completely overtaking the game.

It works fabulously when paired with TheEpicBlock's PolyMc in order to allow fully Vanilla clients to join a lightly modded server.

The features EZ adds are intended to be unobtrusive by default,
while still giving server owners the power to convert vast swaths of terrain into magically irradiated land.

The "Exclusion Zone" Biome

When entering an Exclusion Zone (usually denoted by teal-ish particles in the air, as well as an overgrowth of moss and warped blocks),
the player should be wary of their Toxic Buildup. This is displayed as a bar near the bottom of their screen that steadily fills over time.

As Toxic Buildup increases, the player will begin to suffer more and more debilitating potion effects, eventually culminating in death.

One can mitigate Toxic Buildup by wearing armor.
Each armor piece's toxin resistance is determined by how well it protects from regular damage, in comparison to its leather armor counterpart. A full suit of leather armor provides immunity to toxic buildup, while diamond and netherite protect the least. The toxin resistance of an armor piece is displayed as an attribute, alongside its armor value.

Archaeology

Exclusion Zone piggybacks off the vanilla Archaeology system, implementing suspicious variants of moss and all the colors of concrete powder.
Keep in mind, however, that only Suspicious Moss is currently available to survival players under normal circumstances.

When digging about in Exclusion Zones, one is likely to find various artifacts and relics of an ancient civilization. Make up your own lore, it's more fun that way :)

Datapack, Mapmaking, and Server Utilities

• If you want to make an entity or weapon deal toxin damage on hit, you can give it the exclusionzone:generic.toxin_damage attribute.
• The toxin resistance attribute can also be used by server admins and mapmakers to create custom gear. Its ID is exclusionzone:generic.toxin_resistance.
• As mentioned before, all 16 colors of concrete powder are given suspicious variants, to make blending loot into builds easier.
• The exclusion zone biome does not spawn by default in normal worlds, outside of small pockets around structures. When making your own structures, you can use the exclusionzone:exclusion_zone_biome_maker block (paired with /tick freeze) to create similar patches around them.