Ravenfield Thunder Katana Guide

Ravenfield’s EA39 update spices up combat by introducing the mysterious Thunder Katana. This unique weapon isn’t just handed to you—it demands players engage in a cleverly hidden puzzle featuring six glowing circles and an elusive frog scattered across the new island map. Unlocking it injects fresh excitement and challenges into your battlefield strategy.

Once you finish the puzzle, the Katana will appear, and you can add it to your loadout. The process is not as simple as it seems, and without a proper guide, you can’t complete it on your own.

Here’s where to find all six circles and how you can equip the Thunder Katana in easy steps.

Kick off your quest by launching the new island map with both teams set to zero bots . This gives you the freedom to explore without distraction or combat interruptions, allowing you to focus purely on the puzzle mechanics. Because the island map is more resource-intensive, it’s advisable to avoid running mods for a smoother experience. Also, steer clear of enabling the Configure Flag option; it can interfere with the puzzle, preventing the Thunder Katana from spawning.

After adjusting your settings, hit Play. Your objective is to locate six glowing circles linked together by the presence of a frog. Approaching a circle triggers a distinctive frog croak. Stand within the circle patiently until the frog makes its leap into the water. This action spawns a sparkling indicator pointing you to the next circle in the sequence.

Crucially, do not shoot the frog at any point. Triggering its death means you’ll need to restart the entire sequence, as the puzzle resets.

The new island map is heavier than some older maps, so playing without mods is recommended.

Make sure you do not enable Configure Flag, as this can mess up the trick, and as a result, the Katana will not appear.

Once done, hit the Play button.

Now your main objective is to find the six glowing circles and the frog connected to them.

When you get close to a circle, you will hear the frog. Stand in the circle and wait for the frog to jump into the water. A spark will then appear and point you toward the next circle.

Do not shoot the frog. If you shoot it, you will have to restart the map and do the sequence again.

The starting point is the pond near the Raven spawn on the island’s western edge. Position yourself inside the glowing circle here until the frog jumps into the pond, kicking off the trail to the next marker. If the frog seems hesitant, make sure you are aiming your weapon at it without firing. Simply aiming encourages the frog to jump and keeps the puzzle progressing.

The first glowing circle is at the pond near the Raven spawn point, on the western side of the map.

Stand on the circle and wait for the frog to jump into the water. Now you’ll see a spark, and it will lead you to the second circle.

Important: If any frog is not jumping into the water, then make sure you are aiming your weapon at them. You have to only aim, and do not shoot; otherwise, you’ll have to repeat the entire sequence again.

Circle 2 – Barn

The second circle is on the second floor of the barn.

Enter the barn, go upstairs, and you’ll see a glowing circle. Stand in the circle, and the frog will jump into a bucket. Once done, follow the next spark.

Circle 3 – Small Island

The third circle awaits on a small island connected by a bridge at the bottom-left of the map. The spot is near a small pond where the frog is found. Stand inside the circle, wait for the frog to jump, and then follow the spark leading onward.

The island is connected by a bridge, so cross the bridge and look for the circle there. You can find the glowing circle just near the small pond where the frog is.

Stand in the circle, and the frog will jump, leading you to the next spark.

Circle 4 – Eagle Spawn Coast

The fourth circle is on the coast next to the Eagle spawn point.

Go to the shoreline and look for the glowing circle. Stand in it and wait for the frog to jump. Now move on to the next circle.

Circle 5 – Boathouse

The fifth frog is at the boathouse near the quarry.

Drive to the boathouse and enter it. This circle is very close to the frog, so stand on the circle, and the frog will jump into the water, creating a new spark.

Circle 6 – Middle of the Map

The final challenge presents itself near the farm barn at the island’s center. Search the pond area for the last glowing circle. Stand in the circle and aim at the frog, triggering it to jump into the water and complete the glowing sequence.

Check the pond area and find the circle. Stand in the circle, aim your gun at the frog, and it will jump into the water.

Shoot the Thunder Katana Reflection

Following the sixth frog’s jump, pay attention to the pond’s surface where you’ll see the Thunder Katana’s glimmering reflection. This visual cue signals the puzzle’s climax is near.

Equip a gun—ideally something like the Slam-R—and aim steadily at the katana’s reflection. You don’t need to shoot immediately; simply aiming for about two seconds causes the Thunder Katana to dramatically plunge into the pond’s bottom.

If you lack a rifle in your current loadout, a sniper rifle can be scavenged nearby, leaning against a tree near the final circle. Use this for precision aiming at the reflection.

If you do not have a rifle in your loadout, then you can also find a sniper rifle leaning against a tree near the final circle. Pick it up and aim through the scope at the Katana’s reflection.

Here’s a catch. First, do not shoot the reflection. Just aim at the reflection for around 2 seconds, and you will see the Thunder Katana plunge straight into the ground.

Some players have reported that shooting the reflected image also works if aiming alone doesn’t trigger the katana’s appearance. Since the frog has already jumped, firing is safe and won’t break the puzzle.

When the Thunder Katana plunges into the water, leap across the lily pads nearby and approach the weapon.

Press F to pick up the katana, adding this secret weapon straight into your loadout.

Some players reported that shooting the reflection worked for them, while others said that aiming is enough. However, there is no harm to shoot teh reflection because our frog has already jumped into the water.

Once you see the Thunder Katana plunged into the ground, jump onto the Lily pads and reach near the weapon.

Press F to pull the blade, and it will be added to your loadout.

Once obtained, the Thunder Katana resides within the Secret Weapon tab of your loadout menu. You’re free to slot it into your primary weapon slot and unleash its power on your opponents. Be sure to experiment with its alternate fire mode , activated by the secondary fire button, for maximum battlefield impact.

Once you successfully pick up the Katana, it will appear in your loadout under the Secret Weapon tab.

You can equip it in the primary weapon slot.

The Thunder Katana also has a second fire mode, so check the alternate fire button after equipping it.

That’s all you need to do to unlock the secret Thunder Katana in Ravenfield’s EA39 update.