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


About this Mod
HEV Suit
this is out of date, it will be updated sometime soon with the latest information for version 1.0
This mod adds multiple HEV suit sound effects from Half-Life (and Black Mesa) and a simple HUD to Minecraft.
Sound Effects
- Fractures – Plays a sound when you fall and lose a certain amount of health.
- Blood Loss – Triggered by damage from arrows or fireballs.
- Health Monitoring – Alerts for different health conditions, including critical health, near death, and seek medical attention.
- Heat Damage – Triggers from fire or high temperatures.
- Electrical Damage – Plays when struck by lightning.
- Hazardous Chemical – Alerts for poison or wither effects.
- Power Level Tracking – Based on your armor durability and type of armor (elytras are excluded from durability calculation).
- Armor Durability Tracking – Alerts when your armor is low; elytras play a unique sound.
- Morphine SFX – Plays a morphine sound (purely cosmetic) only if you take 6 damage points (3 hearts) or more at once.
- HEV Logon – Plays when you equip any chestplate with a name starting with "HEV".
- Black Mesa HEV Suit Sounds – Optional alternate sound effects. Some sound effects and features are disabled when toggled on.
- and more! check the changelog for up the up to date features
Features
HUD & Display
- Toggle individual HUD elements (
/hev toggle hud <element>)all,health,armor,ammo,damageindicators,mobindicators
- Change HUD color (
/hev edit hud color <hexcolor>)- Reset with
/hev edit hud color reset
- Reset with
Sound & System Controls
- Toggle voice alerts (
/hev toggle voice <alert>)- Includes:
morphine,armordurability,fractures,heatdamage,bloodloss,shockdamage,chemicaldamage,health_critical2,seek_medical,health_critical,near_death
- Includes:
- Toggle certain features that affect the entire suit (
/hev toggle systems <option>)- Options:
pvp,blackmesasfx,all,captions
- Options:
- List current sound queue (
/hev listqueue) - Clear sound queue (
/hev clearqueue) - Manually queue a sound (
/hev queuesound <sound>)
PvP Mode
/hev toggle systems pvp– Disables all HEV suit systems except health monitoring and the HUD. This is so the HEV suit only tells you the needed alerts to survive (e.g., you won’t be told you’re on fire when someone uses a fire aspect sword).
Available Versions
How to Install Half-Life HEV Suit Voice System on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).
Install Mod
Open the mod browser in the dashboard and search for "Half-Life HEV Suit Voice System". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11, 1.21.10, 1.21.9 (+57 more)
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Half-Life HEV Suit Voice System server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.
Is Half-Life HEV Suit Voice System compatible with fabric and quilt?
Half-Life HEV Suit Voice System officially supports fabric, quilt for Minecraft 1.21.11, 1.21.10, 1.21.9. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Half-Life HEV Suit Voice System – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Half-Life HEV Suit Voice System consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Install Half-Life HEV Suit Voice System with just one click on your server.