Half-Life HEV Suit Voice System

Evidence

Ran on Kiln's test stand (2026-11-04): Hev_suitClient did not start: java.lang.NoClassDefFoundError: org/apache/logging/log4j/LogManager.

What it needs from Kiln

• Mixin
• com.mojang.blaze3d.platform.NativeImage
• net.fabricmc.fabric.api.client.command.v2.ClientCommandRegistrationCallback
• net.fabricmc.fabric.api.client.command.v2.ClientCommands
• net.fabricmc.fabric.api.client.command.v2.FabricClientCommandSource
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents.Join
• net.fabricmc.fabric.api.resource.v1.ResourceLoader
• net.fabricmc.fabric.api.resource.v1.pack.PackActivationType
• net.fabricmc.loader.api.ModContainer
• net.minecraft.client.gui.Hud
• net.minecraft.client.gui.components.AbstractSliderButton
• net.minecraft.client.gui.components.AbstractWidget
• net.minecraft.client.gui.components.Button
• net.minecraft.client.gui.components.Button.Builder
• net.minecraft.client.gui.components.Button.OnPress
• net.minecraft.client.gui.components.CycleButton
• net.minecraft.client.gui.components.CycleButton.Builder
• net.minecraft.client.gui.components.CycleButton.OnValueChange
• net.minecraft.client.gui.components.EditBox
• net.minecraft.client.renderer.RenderPipelines
• net.minecraft.client.resources.sounds.AbstractSoundInstance
• net.minecraft.client.resources.sounds.SoundInstance
• net.minecraft.client.resources.sounds.SoundInstance.Attenuation
• net.minecraft.client.sounds.SoundEngine
• net.minecraft.client.sounds.SoundEngine.PlayResult
• net.minecraft.client.sounds.SoundManager
• net.minecraft.core.component.DataComponents
• net.minecraft.network.chat.Style
• net.minecraft.server.packs.resources.Resource
• net.minecraft.server.packs.resources.ResourceManager
• net.minecraft.tags.DamageTypeTags
• net.minecraft.tags.ItemTags
• net.minecraft.util.Mth
• net.minecraft.world.damagesource.DamageSource
• net.minecraft.world.damagesource.DamageTypes
• net.minecraft.world.effect.MobEffectInstance
• net.minecraft.world.effect.MobEffects
• net.minecraft.world.entity.EquipmentSlot
• net.minecraft.world.entity.monster.Creeper
• net.minecraft.world.entity.monster.Monster
• and 77 more

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3), Machines (0.4), Mixin (0.5)

In the author's words

Adds HEV Suit sound effects from Half-Life and a somewhat accurate recreation of the HL1 hud.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file hev_suit-1.1.1+26.3.jar. The scan reads the mod's classes; it does not run them.