Jagged Alliance 3 – How Does Lockpicking Work

A detailed guide on how the lockpicking system works in the Jagged Alliance 3 game.

Lockpicking Explained

Don’t know the usual number, the game has difficulty settings defined in:


(Which I think are set by the map designers)

  • None = 0
  • Easy = 30
  • Medium = 50
  • Hard = 70
  • Very Hard = 90
  • Always = 100
  • Impossible = -1*

*(Will be checked before any other check and automatically fail the check).

On top of that there’s an additional difficulty (which can be random):

additionalDifficulty = InteractionRand(20, “Lockpick”) / 2

Which, if I’m not misreading the InteracterionRand function, should add up to 10 more points, as the maximum would be 20 and we half that.

Now the check itself first looks if the tool has a bonus for the skillcheck (it’s a negative number, as it lowers the difficulty).

  • Vickies tool = -10
  • The-Sci-Fi Crowbar = -15
  • Everything Else = 0

Then it adds the Difficulty from above (so e.g. “hard” = 70; + additional Difficulty of 10 => 80).

Now it looks if the Merc got the MrFixit Perk, which gives a whopping 15 bonus and substracts that from the difficulty.

  • Mr.Fixit = -15

Now it does the SkillCheck(unit, “Mechanical”, difficulty) – which has no roll and just looks if the Merc Skill is greater than the difficulty.

If you fail by more than 20 points then the lock will get blocked.

Helena Stamatina
About Helena Stamatina 3020 Articles
I love two things in life, games and sports. Although sports were my earliest interest, it was video games that got me completely addicted (in a good way). My first game was Crash Bandicoot (PS1) from the legendary studio Naughty Dog back in 1996. I turned my passion for gaming into a job back in 2019 when I transformed my geek blog (Re-actor) into the gaming website it is today.

1 Comment

  1. It’s both. You probably won’t have any success below 70. I guess it’s remotely possible, but 70 seems to be the base for skill checks.

    Even with high skill (say 90), there’s still a fail chance. I imagine a theoretical 100 could fail, but again the possibility is remote. Not much need to push a skill past 90.

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