Activating the Residuum Experiment in Deathloop is one of the more intriguing tasks you’ll encounter as you explore the repeating timelines and secrets of Blackreef. This particular objective ties into the game’s core mechanic of manipulating time and absorbing power from anomalies in the environment. The Residuum Experiment isn’t explained outright, and many players miss critical steps due to the cryptic clues scattered across the area. Knowing how to turn on the Residuum Experiment requires attention to detail, exploration, and an understanding of the facility’s internal systems. With the right approach, you can unlock essential upgrades and maximize your use of Residuum across loops.
What is the Residuum Experiment?
Background and Purpose
The Residuum Experiment is a hidden feature located within the complex systems of Blackreef. It is a scientific apparatus built to study and control the strange energy known as Residuum, which powers Slabs and allows the main character, Colt, to carry gear across loops. The experiment serves both a narrative function and a gameplay mechanic. Turning it on gives you access to rare data, valuable loot, and sometimes even helps you understand how to infuse items more efficiently.
Location Overview
The experiment is typically found within the AEON Program’s research facilities. One of the main places to investigate is The Complex especially in the afternoon or evening when more systems are active. There are multiple terminals, wires, and devices connected to this experiment, and players will need to figure out the sequence to activate them properly.
Preparations Before Attempting
Choose the Right Time of Day
Since the world of Deathloop changes based on the time of day, visiting the Residuum Experiment at the wrong moment may result in locked doors, missing power, or unavailable access points. The best times to attempt activation are:
- Afternoon: Some doors open, and scientists may still be working.
- Evening: Ideal for maximum energy flow and unlocked areas.
Equip Slabs Wisely
Before heading to the area, make sure to equip slabs like:
- Shift for quick movement and bypassing traps.
- Aether for stealth if guards are present.
- Hackamajig essential for activating terminals and bypassing security.
Collect Key Clues
To succeed, you’ll need to read notes, listen to audio logs, and explore surrounding labs. These clues often reveal the experiment’s access code or hint at power routes. Without these, you may miss key steps or waste valuable loop time.
Step-by-Step: How to Turn On the Residuum Experiment
Step 1: Enter the Main Lab
Go to The Complex during the afternoon or evening. Locate the lab associated with Wenjie, the scientist responsible for Residuum studies. This is where the main experiment is set up. You’ll likely encounter guards and automated defenses, so approach carefully or use stealth.
Step 2: Locate the Experiment Console
Inside the lab, search for a terminal labeled with references to Residuum flow or anomaly control. The console should be near glowing Residuum storage units or tanks with animated energy pulsing inside. Interact with the terminal, and take note of what it says especially if it indicates ‘power offline’ or ‘access denied.’
Step 3: Restore Power to the Facility
The experiment won’t run without power. You’ll usually need to find a battery or reroute existing power from nearby stations. Look for:
- Portable batteries stored in adjacent rooms or cabinets
- Power stations with glowing ports
- Cables leading to control panels or generators
Use your Hackamajig to activate auxiliary systems if available. Insert a battery into the generator slot, and listen for a hum or visual cue indicating power flow.
Step 4: Input the Access Code
Some experiment terminals are locked behind a code. This passcode can be found in scattered documentation around the lab or obtained through storyline progression. Look near whiteboards, computers, and clipboards. Once you have it, return to the console and enter the code to unlock the experiment controls.
Step 5: Activate the Experiment
After power is restored and the console is unlocked, you can begin the Residuum Experiment. Press the designated button and watch the containment chamber or nearby machine come to life. There will be bright light and Residuum energy crackling around the device. This means the experiment has started successfully.
Remain nearby to observe the results. Sometimes the machine will dispense rare materials or unlock new options at infusion terminals. In some cases, the experiment even spawns temporary enemies be ready to defend yourself.
Post-Activation Tips
Collect the Residuum
Once the experiment finishes, approach the output chamber or central table. You may see loose Residuum ptopics floating, which can be absorbed. Walk up and hold the interact button to collect them. This will add to your pool and allow for more powerful item infusions later in the loop.
Use Infusion Immediately
If you’ve unlocked a new terminal or infusion station, take advantage of it right away. Infuse high-tier weapons, trinkets, or Slabs you’ve acquired earlier in the day. Remember, anything not infused before a reset will be lost.
Document What You Learn
Every time you complete the experiment, new logs or notes may appear in your journal. These may guide future puzzle solutions or unlock deeper lore about the Residuum and AEON Program. Review them before exiting the lab to avoid missing narrative clues.
Troubleshooting the Activation
What to Do If the Experiment Won’t Start
If you’re having trouble activating the Residuum Experiment, check the following:
- Is the power fully restored? Double-check battery connections.
- Did you input the correct access code?
- Are you at the correct time of day for system activation?
- Did you defeat all nearby enemies that might interrupt the sequence?
Leaving the area and returning in another loop sometimes resets bugged elements. If needed, revisit during a new day and try again with a fresh approach.
Why It’s Worth the Effort
Benefits of Completing the Experiment
Turning on the Residuum Experiment is more than just a side activity. It has long-term rewards, including:
- Boosting your Residuum reserves for future infusions
- Unlocking story revelations related to Wenjie and the nature of looping
- Access to unique gear or hidden lore elements
In a game where resource management is key to mastering each day, this experiment offers a big leap forward in both progression and immersion.
Learning how to turn on the Residuum Experiment in Deathloop adds depth to your understanding of the game’s world and enhances your control over the loop mechanic. With proper timing, gear, and curiosity, players can uncover powerful rewards and dive deeper into the secrets of Blackreef. Every step from restoring power to inputting the code is a piece of the larger puzzle. Don’t rush, explore thoroughly, and be ready to improvise. Mastering the Residuum Experiment can tip the balance in your favor, making future loops not only easier but far more rewarding.