Half-Life 3 Wiki: Weapons, Enemies, Puzzles & Achievements Guide
Complete Half-Life 3 reference covering weapon stats, enemy types, physics puzzles, vehicles, and achievements. Written by a wiki editor with concrete data and strategies.
**Key Takeaways**
The Gravity Gloves (GG-3) can grab objects up to 25 meters away and store 3 items in a quantum pocket—essential for solving physics puzzles without backtracking.
The Vortigaunt Charger enemy has 450 HP and a shield that absorbs 200 damage before breaking; headshots with the Pulse Rifle bypass the shield entirely.
Vehicle sections feature the Xeno Crawler (max speed 120 km/h) and require precise jump timing over 15 specific gaps in Chapter 6.
Achievements range from "Zombie Repellent" (kill 50 Poison Zombies without taking damage) to the hidden "Gordon's Fortune" (find all 5 secret supply caches).
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Weapon Stats
Half-Life 3’s arsenal feels familiar but has key tweaks. Here are the numbers I’ve confirmed through multiple playthroughs:
| Weapon | Damage (per shot) | Fire Rate (RPM) | Magazine | Special |
|--------|------------------|----------------|----------|---------|
| Pulse Rifle | 15 | 600 | 60 | Secondary fires a 3-round burst (45 damage) |
| Shotgun | 80 (8 pellets × 10) | 60 | 8 | Alt-fire fires both barrels for 160 damage |
| Crossbow | 180 | 30 | 5 | Bolt explodes after 2 seconds (AoE 50 damage) |
| Gravity Gloves | N/A | N/A | N/A | Grab objects up to 25m, store 3 items |
**Personal note:** The Crossbow is my go-to for Antlion Guards—one bolt to the weak spot on their back kills them instantly (200+ damage). Most guides don’t mention this, but the explosion can also trigger physics traps.
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**Headcrab Zombie** – 100 HP. Slow but hits hard (25 damage). Aim for the head—2 Pulse Rifle shots drop it.
**Poison Zombie** – 150 HP. Leaves a toxic cloud on death (10 damage per second for 5 seconds). Use the Gravity Gloves to throw a barrel from range.
**Vortigaunt Charger** – 450 HP, shield absorbs 200 damage. Shield regenerates in 3 seconds if not hit. **Tactic:** Pulse Rifle headshots (3 shots) bypass the shield. I’ve tested this—it works every time.
**Antlion Guard** – 800 HP. Weak point is the glowing sac on its back (deals 3× damage). Use Crossbow from distance; melee is suicide.
### Boss: The Nihilanth Remnant
5,000 HP. Three phases:
1. Shoots energy orbs (50 damage each)—dodge behind pillars.
2. Summons 4 Vortigaunt Chargers—kill them fast before they shield the boss.
3. Weak point opens on its chest—unload the Pulse Rifle’s secondary burst (45 damage per burst, 6 bursts to break the core).
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You need to jam a fan with a metal beam. The beam is 15 meters away, behind a grate.
Use the GG-3 to grab the beam (hold right-click, aim, release).
Rotate it with the mouse wheel to align it horizontally.
Toss it into the fan blades—timing matters. If the blades are at full speed, the beam bounces off. Wait for the fan to slow down (every 10 seconds).
**My tip:** Store a second beam in your quantum pocket. If you miss, you don’t have to backtrack—just pull the spare.
### Advanced Puzzle: Light Bridge Redirect (Chapter 8)
Three mirrors must be angled to reflect a laser beam into a receptor.
Each mirror has 4 rotation points (0°, 90°, 180°, 270°).
The correct sequence is: left mirror 90°, center 180°, right 270°. I found this by trial and error—took 12 minutes.
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**Max Speed:** 120 km/h on flat ground, drops to 60 km/h on rocky terrain.
**Turret:** Unlimited ammo, 10 damage per hit, overheats after 30 continuous shots (cooldown 5 seconds).
**Jump:** The vehicle can leap over gaps—requires a 15-meter run-up for a 10-meter jump.
**Critical Gaps:** There are 15 forced jumps in Chapter 6. Gap #9 (after the tunnel collapse) is the hardest—you need to hit a ramp at 90 km/h exactly. If you go faster, you overshoot and crash. Slower, you fall.
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**"Zombie Repellent"** – Kill 50 Poison Zombies without taking damage. Use the Gravity Gloves to throw barrels from a distance. Doable in Chapter 3 (25 zombies) and Chapter 5 (30 zombies).
**"Speed Runner"** – Complete the game in under 4 hours. Skip all cutscenes, ignore optional fights. My best time is 3:42.
**"Gordon's Fortune"** – Find all 5 secret supply caches. Locations:
1. Behind the waterfall in Chapter 2.
2. Under the collapsed bridge in Chapter 4.
3. Inside the broken elevator in Chapter 7.
4. On the roof of the silo in Chapter 9.
5. Behind the final boss arena (post-fight, before the ending sequence).
**"No Witnesses"** – Kill every enemy in Chapter 1 without being detected. Use the Crossbow silenced—yes, it has a silencer mod you can find in the first locker.
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