Learn how to get, use, and upgrade the Very Rare Perimeter Tripcaster in Horizon Forbidden West. Master its Shock, Fire, and Shieldwires for tactical combat!
Alright, let's talk about the Perimeter Tripcaster, a seriously cool Oseram invention you get for free! This thing is classified as 'Very Rare' and can lay down Fire and Shock Tripwires, plus some handy Shieldwires. You can even upgrade it to really amp up the damage over time. It's a fantastic tool for setting traps and controlling the battlefield, so let's dive into how you get your hands on it and make the most of it.
How to Get the Perimeter Tripcaster:
Once you've wrapped up the main story mission 'The Kulrut,' you'll be able to explore The Memorial Grove. Head inside, and you'll find an NPC named Dekka. She'll give you the 'Blood for Blood' side quest. Complete this quest, and boom – the Perimeter Tripcaster is yours! No cost, just a reward for your efforts.
Perimeter Tripcaster Stats:
This weapon comes with three ammo types: Shock Tripwires, Fire Tripwires, and Shieldwires. Let's break down the stats:
| Shock Tripwires | Base | Rank I | Rank II | Rank III | Rank IV | Rank V |
| Shock | 26 | 28 | 31 | 34 | 38 | 43 |
| Shock Buildup | 214 | 224 | 236 | 254 | 272 | 293 |
| Fire Tripwires | Base | Rank I | Rank II | Rank III | Rank IV | Rank V |
| Fire | 27 | 29 | 32 | 35 | 39 | 44 |
| Fire Buildup | 218 | 229 | 242 | 260 | 279 | 299 |
| Shieldwires | Base | Rank I | Rank II | Rank III | Rank IV | Rank V |
| Explosive | 142 | 154 | 170 | 186 | 207 | 236 |
Perimeter Tripcaster Perks:
As you rank up the weapon, you'll unlock perks that boost its effectiveness:
| Perks | Base | Rank I | Rank II | Rank III | Rank IV | Rank V |
| Damage Over Time | – | – | – | 15% | 40% | 40% |
How to Use the Perimeter Tripcaster:
This tripcaster is all about setting up ambushes. The Shock and Fire tripwires are great for exploiting enemy weaknesses to those elements. While they might feel a bit slow for direct combat, they shine when you're anticipating an enemy's path. The Shieldwires are surprisingly versatile; they can block incoming projectiles, and if they take enough damage, they'll explode, dealing damage to anything nearby. Pro tip: you can also trigger the Shieldwires yourself with your own attacks, turning them into a neat little trap!
How to Upgrade the Perimeter Tripcaster:
Upgrading this weapon is key to unlocking its full potential. Here's a look at the costs and effects:
| Rank | Effect | Upgrade Cost |
| I | Increased Weapon Stats | 127x Metal Shards, 4x Braided Wire, 4x Small Machine Core, 1x Medium Machine Core |
| II | Increased Weapon Stats, Unlocks Coil Slot | 212x Metal Shards, 6x Braided Wire, 2x Clamberjaw Tail Duster, 2x Rockbreaker Mining Claw |
| III | Increased Weapon Stats, Perk Unlocked | 300x Metal Shards, 10x Braided Wire, 1x Large Machine Core, 1x Rockbreaker Circulator, 1x Stormbird Storm Cannon |
| IV | Increased Weapon Stats, Perk Upgraded | 450x Metal Shards, 2x Large Machine Core, 1x Stormbird Circulator, 2x Frostclaw Sac Webbing, 1x Clamberjaw Primary Nerve |
| V | Increased Weapon Stats, Unlocks Coil Slot | 600x Metal Shards, 1x Luminous Brainstem, 1x Frostclaw Primary Nerve, 6x Slitherfang Earthgrinder, 1x Apex Scorcher Heart |
Upgrade Component Breakdown:
- Rank I Upgrades: Metal Shards (common drop from all machines), Braided Wire (common drop from all machines), Medium Machine Core (uncommon from Midweight machines), Small Machine Core (uncommon from Lightweight machines).
- Rank II Upgrades: Clamberjaw Tail Duster (very rare component from Clamberjaws, must be detached), Rockbreaker Mining Claws (very rare component from Rockbreakers, must be detached).
- Rank III Upgrades: Large Machine Core (rare from Heavyweight machines), Rockbreaker Circulator (uncommon from Rockbreakers), Stormbird Storm Cannon (legendary from Stormbirds, must be detached). Heads up: Stormbirds are rare until later in the game, but you might find one in the mountains southeast of Cliffwatch.
- Rank IV Upgrades: Stormbird Circulator (uncommon from Stormbirds), Frostclaw Sac Webbing (rare from Frostclaws, avoid destroying the Chillwater Unit), Clamberjaw Primary Nerve (rare from Clamberjaws).
- Rank V Upgrades: Luminous Brainstem (very rare from Heavyweight machines, Scorchers, and Apex Frostclaws), Frostclaw Primary Nerve (rare from Frostclaws), Slitherfang Earthgrinder (very rare from Slitherfangs, must be detached – they appear after The Kulrut), Apex Scorcher Heart (very rare from Apex Scorchers).
Perimeter Tripcaster Ammo Types:
| Icon | Name | Effect |
| Shock Tripwires | Deals Shock damage and Shock Buildup | |
| Fire Tripwires | Deals Fire damage and Fire Buildup | |
| Shieldwires | Deals Explosive damage |
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