Close Menu
    Facebook X (Twitter) Instagram
    Gamer TweakGamer Tweak
    • GT Originals
    • Guides
      • AC Mirage
      • Starfield
      • Wordle
      • Mobile
      • GTA 6
      • AC Valhalla
      • Genshin Impact
      • Honkai Star Rail
      • Minecraft
      • Discord
      • Street Fighter 6
      • Project Slayers
      • The Sims 4
      • Lies of P
      • Zelda TOTK
    • Roblox
      • Codes
      • Blox Fruits
      • Type Soul
      • Grow a Garden
      • 99 Nights in the Forest
    • Review
    • Codes
    • BG3
    • CS2
    Gamer TweakGamer Tweak
    Home > Roblox Guides > Dead Rails Brain in Jar Explained
    Roblox

    Dead Rails Brain in Jar Explained

    Nikita HarinameBy Nikita HarinameMarch 12, 20252 Mins Read

    Came across the Tesla lab building in Dead Rails and noticed a strange Brain in Jar? Interestingly, it has two purposes. It makes for the head of a creature that you can assemble or you can sell it for money if you’re short of cash. Here’s what you need to know about this valuable item.

    Dead Rails Brain in Jar

    The Tesla Lab can be randomly seen between the 50-60km mark in your journey and when you spot it, explore and collect various items scattered across the area. One of the major items is the Brain in Jar which is kept on a wooden table. It’s a crucial body part to complete the assembly of the Nikola Tesla boss, a powerful Werewolf that appears at the 80km point if you combine its body here.

    nikola tesla boss

    This is a tough boss fight so if you believe that you might be underprepared for a challenging enemy like this, you can skip it and instead, sell the Brain in Jar for $250. However, if you wish to assemble his body, follow these steps:

    • Look for the limbs all over the Tesla building.
    • Bring them back to the table at the center.
    • After assembling the creature, go to the room with the machine and interact with the lever to start the power.
    • This will revive the monster over time, but until then, you need to deal with waves of zombie scientists that appear. Stay inside the building and use your ranged weapons to take them down.
    • Once the revival process is over, the creature disappears from the table after getting electrocuted.
    • Make sure to collect the Electrocutioner gun which needs a Lightning rod to charge and can be useful to defeat this boss at the end of your journey. Plus, collect everything else that can be helpful such as Bonds.
    tesla boss at 80km

    That’s everything you need to know about the Brain in Jar item in Dead Rails. Here’s a visual guide on how you can beat the Tesla boss at the end:

    Tips and Tricks
    Share. Facebook Twitter Pinterest LinkedIn Tumblr Email Reddit
    Nikita Hariname

    From making games to writing about them, she's been in the world of entertainment since a decade now. She writes features, the latest trending news and guides on games like Diablo 4, Overwatch 2, Roblox, codes and more fun stuff! Connect with her at - contactus@gamertweak.com

    Related Posts

    How to Get the Strong Axe in 99 Nights in the Forest

    November 7, 2025

    Is Grow a Garden Being Turned Into a Movie?

    November 6, 2025

    How to Get Tickets in 99 Nights in the Forest

    November 6, 2025

    How to Get the Chainsaw in 99 Nights in the Forest

    November 5, 2025
    Latest Codes

    Grow Anything Codes (November 2025)

    November 7, 2025

    Pixel Blade Codes (November 2025)

    November 7, 2025

    Anime Fight Codes (November 2025)

    November 4, 2025

    Monkey Climb Codes (October 2025)

    October 24, 2025

    Pixel Quest Codes (October 2025)

    October 24, 2025

    Parasite.exe Codes (October 2025)

    October 24, 2025
    Trending
    • How to Get the Strong Axe in 99 Nights in the Forest
    • Grow Anything Codes (November 2025)
    • Pixel Blade Codes (November 2025)
    • Is Grow a Garden Being Turned Into a Movie?
    © 2025 Gamertweak.
    • Advertise With Us
    • About Us
    • Team
    • Contact Us
    • Privacy Policy
    • Terms
    • Open Critic

    Type above and press Enter to search. Press Esc to cancel.