В Arknights: Endfield The Riddle Research event offers rewards for completing a series of challenges based on puzzles from the game world. Nine different stages test your wits, resourcefulness, and knowledge of the game's core mechanics, and reward you with Oroberil, leveling resources, and a unique minted medal.
The event started on February 24, 2026 and is available in the game. foreverTo participate, you must have completed the story mission of the first chapter. "Paving the Way"After completing the quest, you'll receive a message from Fiona at Baker. Read it to unlock the level selection menu.
Arknights: Endfield's Investigation of Mysteries walkthrough
Game mode levels consist of separate rooms where you must solve puzzles and collect all the bonuses by solving problems encountered throughout the game.
Pressure drop
To complete the first challenge, reach the exit using heavy objects and pressure switches. Hidden inside is three chests with resources, and it will take 3-4 minutes.
Take the box from the left wall, drag it to the elevated area and climb up.
In the next section, drag the box into the elevator and go up to floor 1.
Place it on the push panel in front of the gate to open the door.
In the next room, take the tall object and drag it along the red line to the pressure switch.
When the doors open, don't rush in. Jump onto the placed crate, and from there jump to the platform with first chest.
After entering the next room, turn right and run along the red line to the end. Use the device to open the passage to the previous room.
Take the box installed on the panel and drag it through the opened door into the room with a new riddle.
First place it next to the platform where it is hidden second chest.
Go down and take the container to the large gate marked "UWST." Place the crate opposite it and you'll be able to jump up onto the raised platform on the left.
Look for objects along the wall that can be used to climb even higher. On the upper platform, you'll find a switch to open the gate.
Run across the iron bridge and use the elevator to descend to the entrance. Drag the container through the opened gate onto the elevator and lift it to the second floor.
Drag the cargo to the pressure panel on the upper tier. After the passage opens, collect the bonuses from the third tier. chest.
In the same room there is a protocol rift for exiting the test.
Help with lifting
On the second level, use the cars to reach the exit. You need to go through three rooms with controllable platforms and swings, and find three chestsThe passage will take 3,5-5 minutes.
Run into the large hall with stairs, go down the one on the right and look under it.
You will find it in a dead end first box with resources.
Come out from under the stairs and activate the manipulator opposite.
Go up to the second floor and use the inclined platform to get to second box.
Return to the middle level and use the device to control the load in the center.
Stand on the near edge of the next suspended platform. Wait for the far edge to rise to its maximum height and run up the resulting path.
The next room has three accessible manipulators and one blocked by a laser barrier.
Activate the left switch first to raise the platform on the left.
Double-click on the device on the right that is responsible for rotating by 90 degrees.
With these actions, you'll build a path to the top floor. Climb up it.
The path will lead to a small room with another swing. First, stand on its far end and run to the raised edge to reach third box with resources.
Next, tilt the load to the other side and climb onto the platform with the switch - it opens the door to the previous room, behind the lasers.
Disable the energy fence using the button opposite the manipulator.
Now that all the manipulators for the suspended platforms are available, we need to build a path to the other side of the hall:
- Turn twice and then lower the left platform.
- Turn twice and then lower the right platform.
The completed ramp will lead to the final room of this trial. To complete it:
- Use the nearest manipulator twice and run across the moving platform to the next one.
- In the center of the hall, near the right wall twice Activate the next switch and head across the moving bridge to the next one.
- Far device press onceto lower the central platform.
Return to the beginning of the hall, moving all the platforms to the center along the way.
You will get an improvised bridge, which you will use to cross to the exit.
On the wings of the wind
On the third level, use the vortexes to speed up. Reach the exit as quickly as possible. The track is completely straight, but you have a 10-minute time limit. To get all the bonuses, reach the exit. in 300 seconds.
Industrial labyrinth
The fourth level locks the hero in a mysterious labyrinth. Passing through walls that slide open in the most unexpected places, find the right path and reach the exit. Along the way, you'll encounter three chests, and it will take you to complete it 3-4 minutes.
Run forward along the corridor until you reach the teleport, which will immediately disappear behind the partition.
The path will open further on the right. In this room, you'll encounter the inscription on the wall for the first time. «21323» - It's worth remembering.
Go to the wall opposite the mechanisms - it will open and let you through.
At the end of the corridor you will see a box with resources, but as soon as you approach, it will disappear behind a partition.
Circle around any of the openings. The wall in front of the chest will close again, but a new path will open next to the green bench.
Follow it and pick up bonuses along the way first box.
In the room with lasers, follow the red lines to the wall.
Next comes another riddle: you need to remember which platforms appeared first and jump only on them.
Solution for the first hole: central → central → left.
Solution for the second: left → center → center → right → center.
At the end of the path, an obstacle course awaits second chest.
The next section will require a code found everywhere on the walls—21323. Look at the numbers on the walls and move through the passages with the corresponding signs:
- The passage with the number 2 is ahead.
- Immediately behind it is a wall with the number 1.
- Number 3 is right behind the previous partition.
- Wall 2 on the right.
- The number 3 is at the very end of the corridor.
The final riddle of this test is a corridor with teleports.
Enter any portal three times and you will find yourself next to the third box.
Jump down to the first floor and run into the room without a teleporter - a wall will open in it.
Once you reach the end of the corridor, jump over the lasers and cross the hall. The exit awaits on the other side.
Heat interception
The next challenge is again a speed challenge. Use the vortexes to speed up and dodge the beams. Reach the exit as quickly as possible—the challenge has 10 minutes, but to earn bonus rewards, you must do so within 300 seconds.
The only tricky part comes at the very end. When the floor beneath your character collapses, activate four switchesto disable the laser barrier. Their locations are marked in the screenshot.
Undermining from outside
In the sixth test, use industrial explosives wisely to reach the exit.
First, open the door by attacking the switch at the end of the corridor.
In the square hall, jump on the moving platform to reach the first resource box.
Using the same cabin, climb up to the elevated area with the closed gate opposite the chest.
Take the explosives from the barrel of originium and throw them into the two cylinders on the sides of the gate.
In the next room, climb up the stairs and stand on the shaky platform next to the barrel.
Take the bombs and throw them at the four switches: two on the left and two on the right.
In the next room, first descend using the rope. Use the tank in the center to manufacture explosives and activate the four cylinders.
Three of them are clearly visible and open the passage to the next area. The fourth is less noticeable. It stands in the corner on the right and opens a hidden door with second box.
Proceed to the next room—here you'll need to cross a large pit of water. Follow these steps:
- Hit the cylinder on your side to activate the additional booth. Hit it again to stop it next to you.
- Jump onto the approaching platform and wait until the central cabin is nearby so that you can quickly jump to the platform in the center.
Take resources from third chest, as well as explosives from a barrel nearby.
Use explosives to activate the device on the other side. After that, follow the same procedure: wait until the booth is opposite the entrance and turn off the electric cylinder. All that's left to do is wait for the platform moving in the center and jump to the other side.
Long-eared Invitation
The next level is a test of attentiveness: lead the scattered long-ears home and reach the exit.
Run forward and when you turn right into a narrower tunnel, you will meet three hares.
As soon as you leave the cave, one of them will immediately run into the hole - this is 1/6.
Run after the remaining two. A little further, near the destructible wall, another long-ear will change course and run into a pipe. Find a barrel of industrial explosives nearby and blow up the rocks. The second long-ear will go into a hole— 2/6.
Return to the main route, where the third animal remains. It will run into the pipe and cross to the other side of the river. Use the wind vortex to gain speed and jump after it.
Follow the hare down the metal path and keep following until you meet another one. A little further on, they'll split up: one will run into a pipe, and the other will turn into a cave.
Follow the one that ran into the cave and chase him into the mossy drain.
Return to the main route (where the rabbit hid in the pipe) and go a little further. The creature will appear again, but it will hide and begin to run away through the tunnels.
Climb the ladder and run to the pipe by the far wall. As soon as you get there, the rabbit will hide in the house— 3/6.
Next, you need to disable the three energy fences. To do this, take the explosives from the barrel next to them and throw them at the three switches.
Run forward, go down the stairs – there are three long-ears sitting there. One of them will immediately run into the hole – 4/6.
Disperse the rabbits standing at a distance. The one closest to the boxes will run further, and the one near the breakable wall will dart into the pipe and end up behind it.
Run after the one who turned left, follow him up the stairs and use explosives to deactivate the energy fence.
Once you're down, press the button to turn off the red lasers. At that moment, the animal will jump into the house— 5/6.
There's another barrel next to the hole. Take a grenade and throw it at the wall behind the doorway ahead.
You'll find a rope behind the barrier. Climb it and catch up with the hare. Use the device to open the energy gate and follow the creature to the end.
Behind the massive gates, all the long-eared ones will gather in a circle and the test will be completed - 6/6.
The roar of the cannonade
A small reaction test. Dodge the bombardment of Aggels and reach the exit, collecting items along the way. three chests.
Run straight ahead to the cliff. Wait for the tower on the right to fall, forming a bridge.
After running across it, jump down and immediately turn around - there is a hidden one behind your back first chest.
After collecting the valuables, use the zipline structure to move further.
Fire traps await. Wait for the fire to die down, taking cover, and then take the right path.
Before the next zipline structure, open second box and fly over to the other side.
Climb up the containers and run to the end of the route. There's a challenge waiting before the finish line. third chest.
Ray evasion
The final challenge in the first episode requires you to navigate a location with numerous lasers. Dodge the beams, overcome obstacles, and reach the exit. There's no time limit, and you can find items along the way. three chests.
The first lasers are not a threat - just run between them to the end of the corridor.
Run towards the chest visible ahead until the floor beneath your feet collapses.
Once at the bottom, jump over the four obstacles and then use the trampoline to launch yourself upwards.
Wait for the moment when the moving lasers are high or low enough that you can jump over them without hitting them.
The next trampoline will lead to a rope. Interact with it and once you're at the top, turn around—there's a hidden rope behind your back. first box.
Jump on the trampoline again to get even higher. At the end of the corridor, activate another zipline.
Take resources from second chest and run into the round tunnel.
Once you fall into the room with a lot of lasers, immediately turn around and run towards the ventilation shaft. There, in a dead end, you'll find third chest.
Return to the large hall densely filled with lasers. To reach the rift in the center, look for gaps between the beams.
You can see an example of the walkthrough in the video:
Rewards
By completing nine "Riddle Investigation" challenges from the "Riddle First Appearance" series, you can claim the following rewards in Arknights Endfield:
- Oroberil ×1,500;
- T-loans ×5,300;
- Enhanced Cognitive Media x18;
- Perseverance Mark ×9;
- protohedron ×54;
- Weapon test kit ×36;
- minted medal "Secrets of the Valley".
For completing all bonus goals and collecting all boxes on the levels, you will additionally receive:
- T-credits ×1,700;
- basic cognitive carrier ×216;
- Enhanced Cognitive Media x3;
- protohedron ×63;
- Weapon test kit ×384;
- finishing of the minted medal "Secrets of the Valley".
thank you dear
Thank you very much! <3