1. Half-Life 2 Achievements
2. Lambda Locator achievement

Half-Life 2

478

33

4.59

23,415

4,593 (20%)

12-15h

AKXOne

478

33

5

06 Jul 10

28 Jul 19

23h 1m

Lambda Locator achievement in Half-Life 2

Lambda Locator

Find all lambda caches in Half-Life 2.

0

28 July 2019 - 3 guides

How to unlock the Lambda Locator achievement

• Uzzbuzz366,336

  03 Jul 2013 17 Jun 2016
  8 0 1

  I've made my own video for this in the past, and to make it extra effective, I made it a video adaptation of a text guide. You will have two sources to verify you got the symbol, so you can make sure you haven't missed one.
  
  Text Guide (by Thortok2000): http://forums.steampowered.com/forums/showthread.php?t=12901...
  
  My video adaptation of this specific guide:
  
  

  
  Good luck!

  Guide not helping? View 2 more guides for this achievement.

  Showing only comment.

  Dead link, here's a similar guide: https://steamcommunity.com/sharedfiles/filedetails/?id=24427...

  Posted by zenvoid on 05 Nov 23 at 19:39

• Have you got any tips or tricks to unlock this achievement?
  Add a guide to share them with the community.

  Sign in and add a guide
• zenvoid10,879

  05 Nov 2023 05 Nov 2023
  0 0 0

  Getting this, I followed Veilor's guide. However, I was missing one after getting all of them even though I was sure I had taken all of them.
  
  To help find it I found this guide:
  
  https://steamcommunity.com/sharedfiles/filedetails/?id=20837...
  (https://major-gnuisance.github.io/util/lambdalocator.html)
  
  Using your gamestate.txt-file it finds out which cache location it is that you are missing. That way you can go back and find the cache and hopefully the achievement will pop.
  
  In my case, I was missing cache 12 in chapter "Water Hazard". I was 100% sure that I had already found it but I went back and the achievement popped. I don't know why it didn't count the first time but at least I got it.
• Veilor53,468

  23 Oct 2015 28 Oct 2015
  3 3 0

  To get this achievement you need to locate all the lambda symbols and either touch them or open boxes closeby.
  
  Here's a video by FurtadoPires on youtube which shows all locations