Gravity Changer Unofficial Port

Calls something that is on Kiln's roadmap. Parts of it may already run.

Evidence

Ran on Kiln's test stand (2026-11-04): GravityChanger did not start: java.lang.NoClassDefFoundError: net/minecraft/world/entity/ai/attributes/RangedAttribute.

What it needs from Kiln

Mixin
com.mojang.math.Axis
net.fabricmc.fabric.api.creativetab.v1.FabricCreativeModeTab
net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents
net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents.EndTick
net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents
net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents.Disconnect
net.minecraft.core.Direction.Axis
net.minecraft.core.Direction.AxisDirection
net.minecraft.core.particles.DustParticleOptions
net.minecraft.network.chat.Style
net.minecraft.network.chat.TextColor
net.minecraft.network.protocol.game.ClientboundUpdateAttributesPacket
net.minecraft.references.BlockItemId
net.minecraft.server.MinecraftServer
net.minecraft.server.network.ServerGamePacketListenerImpl
net.minecraft.server.players.PlayerList
net.minecraft.tags.TagKey
net.minecraft.util.Mth
net.minecraft.world.entity.EntityDimensions
net.minecraft.world.entity.EntityType
net.minecraft.world.entity.PositionMoveRotation
net.minecraft.world.entity.ai.attributes.Attribute.Sentiment
net.minecraft.world.entity.ai.attributes.AttributeMap
net.minecraft.world.entity.ai.attributes.RangedAttribute
net.minecraft.world.item.CreativeModeTab.Builder
net.minecraft.world.item.CreativeModeTab.DisplayItemsGenerator
net.minecraft.world.item.CreativeModeTab.ItemDisplayParameters
net.minecraft.world.item.CreativeModeTab.Output
net.minecraft.world.item.DyeColor
net.minecraft.world.item.Item.TooltipContext
net.minecraft.world.phys.AABB
net.minecraft.world.phys.Vec2
Minecraft.hasShiftDown()
Direction.from3DDataValue()
Direction.get3DDataValue()
Direction.getAxis()
Direction.getAxisDirection()
Holder.Reference.is()
BuiltInRegistries.ATTRIBUTE
BuiltInRegistries.CREATIVE_MODE_TAB
and 52 more

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3), Mixin (0.5)

In the author's words

Change gravity direction. A higher fabric port of the mod Gravity Changer.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file gravity_changer-1.5.3-beta.1-mc26.3.jar. The scan reads the mod's classes; it does not run them.

Reports from players

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