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Key to the Tower

Game data: snapshot from 19.10.2026 · 4 min read

Table of contents

Lighthouse

Quest from Mechanic on Lighthouse after the Assessment - Part 3 quest.

Trader: Mechanic · Map: Lighthouse · Level: — · Experience: 30,500 · Kappa: no · Type: find and hand over

Quest objectives

Required items

ItemAmountFIRFlea Market priceWhat to do
Piece of plexiglass2yes20,402 ₽hand over
Insulating tape1yes20,857 ₽hand over
Military circuit board2yes34,583 ₽hand over
Military COFDM Wireless Signal Transmitter1yes96,613 ₽hand over
Working LCD1yes25,938 ₽hand over
Radio transmitter body1——find and hand over

How to complete the quest

1. Hand over Mechanic to «Piece of plexiglass» × 2, «Insulating tape», «Military circuit board» × 2, «Military COFDM Wireless Signal Transmitter», «Working LCD» — FIR only.

2. Find “Radio transmitter body”. Search on Lighthouse: containers, stashes and bodies.

3. Hand over “Radio transmitter body” to Mechanic in the quest menu.

Quest text from Mechanic

I have good news and bad news, which one should I start with? I'll start with the good news! We've proved our potential. Lightkeeper is pleased with us, and wants to meet you in person... Yes, you specifically. The bad news is you can't get to him that easily, the place is rigged with land mines. Plus, a sniper shoots everyone who comes near the lighthouse. We must somehow let them know that it's you, among all the other PMCs that are sniffing around there. So we'll put together a transponder for you. He will pick up the signal, give a sign to the sniper, and disable the mines. The path will be safe. I've already written down what materials I need to assemble it. Finding the transmitter box won't be easy, but I think you could try looking somewhere where the USECs settled down.

Rewards

  • 30,500 XP
  • Standing with Mechanic: +0.01

Quest chain

Prerequisites

What it unlocks

With the radar: objectives on the map and a safe extract

  • The required items (Piece of plexiglass, Insulating tape, Military circuit board…) are highlighted in loot by the “Quest” filter, and the planner shows “Still to find” and “Can hand over”.
  • The “Can be completed this raid” section in the planner shows that this quest can actually be completed on the current map.

From 400 ₽ per dayHow the radar works

Radar in the browser: the Lighthouse map with players, distance and elevation difference

Questions and answers

Which map is the “Key to the Tower” quest completed on?

On Lighthouse. Total: 7 objectives.

Is the “Key to the Tower” quest required for Kappa?

No, this quest is not required for the Kappa container.

What do you get for completing it?

The quest rewards 30,500 XP.

Where to find Piece of plexiglass for this quest?

The item must have the “found in raid” status: you need to pick it up yourself in a raid — from containers, bodies or stashes on the map Lighthouse. Buying it on the Flea Market will not work.

What does it unlock?

Quest “Knock-Knock” from Mechanic.

What is needed to accept it?

First complete the quest «Assessment - Part 3»; it is given by Mechanic.

Similar quests

Other Mechanic quests: The Courier, Gunsmith - Part 1, The Door, Watching You, Surplus Goods · all Mechanic quests

Quests on Lighthouse: Top Secret, Broadcast - Part 1, Revision - Lighthouse, Missing Cargo, Getting Acquainted · all

Tarkov radar from 400 ₽ per dayPricing