How to Unlock the Secret Tomb in Catch Bugs (June 2026) All 3 Locations

If you have been wandering through Duneburrow in Catch Bugs and noticed that ancient stone door covered in runes, you are staring at the entrance to the Secret Tomb. Unlocking it requires tracking down three specific rare bugs scattered across different areas of the map and bringing them to the rune wall in the correct order. In this guide, I will walk you through every step of how to unlock the Secret Tomb in Catch Bugs, including exact locations for all 3 bugs, spawn behavior tips, and the rewards waiting inside.

The Secret Tomb is one of the most rewarding hidden areas in Catch Bugs on Roblox, and it is easy to miss if you do not know what to look for. By the end of this guide, you will have everything you need to open that rune wall and claim the exclusive content inside.

What Is the Secret Tomb in Catch Bugs?

The Secret Tomb is a hidden endgame area tucked deep within Duneburrow, the desert zone in Catch Bugs. It sits behind an ancient stone door marked with glowing runes, and those runes only activate when you approach while carrying the correct three bugs in your inventory. Inside, the tomb opens up into an expansive underground chamber filled with crystalline structures, rock formations, and some of the rarest bug spawns in the entire game.

Community discussions on Reddit and TikTok often describe the Secret Tomb as a rite of passage for dedicated players. It is not required to beat the main game, but the rewards inside — including celestial bug variants and exclusive achievements — make it one of the most sought-after secrets in Catch Bugs. Players who have unlocked it consistently say the experience feels like a capstone moment for their bug collection journey.

Prerequisites Before Attempting the Secret Tomb

Before you go searching for the tomb entrance or the required bugs, make sure you have met these requirements. No other guide mentions these prerequisites, and skipping them is the most common reason players fail to find the tomb.

You need access to Duneburrow. This means completing the Deeproot Caves zone first. Duneburrow does not unlock until you have finished all main objectives in Deeproot Caves, so if you cannot fast-travel to the desert area yet, go back and finish that zone.

Upgrade your net speed. Two of the three required bugs move fast, and a basic starter net will struggle to catch them. I recommend upgrading your net speed at least twice before attempting this quest. The net upgrade station is in the main hub area, and each upgrade costs in-game currency you earn from selling common bugs.

Empty at least 3 inventory slots. You need to carry all three required bugs simultaneously to the rune wall. If you sell or release one before reaching the door, you will have to go catch it again. Plan your inventory before heading out.

Where to Find the Secret Tomb in Catch Bugs?

The Secret Tomb entrance is located in Duneburrow, hidden inside a narrow tunnel that most players walk right past. Here is exactly how to find it.

Travel to Duneburrow and head toward the area between the Cell Zone and the Net Area. Look for a gap in the rock formations along the eastern wall — it is partially obscured by sand dunes and a cluster of cacti. Walk through this gap and you will enter a short, dark corridor that leads to a larger chamber. At the far end of that chamber, you will see the ancient stone door with glowing rune carvings.

The entrance is deliberately unmarked on the game map, which is why so many players miss it entirely. There are no quest markers or NPC hints pointing you toward the tunnel. The only visual clue from the outside is a faint blue glow visible between the rocks at certain angles during in-game daytime cycles.

All 3 Bugs Required to Unlock the Secret Tomb

To open the rune wall and enter the Secret Tomb, you need to catch and carry three specific bugs to the door at the same time. Each bug spawns in a different area of the game, and they all have unique behaviors that make catching them a challenge. Here is the complete breakdown of every bug you need.

Bug 1 – Crescent Wing Butterfly (Moon Hollow)

The Crescent Wing Butterfly is found in Moon Hollow, the forested zone that unlocks after Duneburrow. It spawns near the crystalline structures scattered throughout the central grove area, typically fluttering between the glowing trees and the small pond. This butterfly is easiest to spot during in-game dawn and dusk cycles when its wings catch the ambient light.

Approach the Crescent Wing Butterfly slowly from behind. It is skittish and will flee if you sprint toward it or swing your net wildly. Walk at normal speed, position yourself within net range, and time your swing for when it pauses on a tree trunk or near a crystalline formation. Most players catch it within a few attempts once they understand its flight pattern.

Important: Do not sell this butterfly after catching it. You need it in your inventory when you approach the Secret Tomb rune wall. If you accidentally sell it, you will need to return to Moon Hollow and catch another one.

Bug 2 – Spiny Harvestman (Cave Area)

The Spiny Harvestman is located inside the Cave area of Duneburrow. Enter the cave system from the northern entrance near the rock arch, then follow the main tunnel deeper until you reach the large open chamber with stalactites. The Spiny Harvestman crawls along the ground near the rock formations at the base of the cave walls.

This is where your net speed upgrade matters. The Spiny Harvestman is fast — significantly faster than most ground bugs in the game. It zigzags along the cave floor when startled, and the dim lighting inside the cave makes it harder to track. I recommend clearing out other bugs in the chamber first so you have fewer distractions, then cornering the Harvestman against a wall where it has less room to dodge.

A steady approach works better than chasing it. Walk toward it calmly and swing your net when you are close. If it bolts, wait a few seconds for it to settle back into a crawling pattern before trying again.

Bug 3 – Wasp Moth (Transition Corridor)

The Wasp Moth is the hardest of the three bugs to catch, and it is the one most players struggle with. It spawns in the transition corridor — the narrow passageway that connects Duneburrow to Moon Hollow. This corridor is easy to overlook because most players fast-travel between zones instead of walking through it.

The Wasp Moth has unpredictable spawn mechanics. It does not appear every time you enter the corridor. Based on community testing, it seems to spawn more frequently during in-game nighttime cycles, and some players report higher spawn rates when traveling through the corridor in multiplayer sessions with other players in the same zone. If it does not spawn on your first pass, exit the corridor, wait for an in-game cycle to pass, and re-enter.

When the Wasp Moth does spawn, it hovers near the ceiling of the corridor and occasionally dips lower. Time your net swing for when it descends, and position yourself directly beneath it. A net speed upgrade makes a significant difference here — the moth can change direction quickly, and a faster swing gives you a larger window to catch it.

Step-by-Step Guide to Unlock the Secret Tomb

Here is the complete walkthrough from start to finish. Follow these steps in order for the smoothest experience.

Step 1: Complete Deeproot Caves. Finish all main objectives in Deeproot Caves to unlock access to Duneburrow. You cannot skip this step.

Step 2: Upgrade your net. Visit the net upgrade station in the main hub and upgrade your net speed at least twice. This is critical for catching the Spiny Harvestman and the Wasp Moth.

Step 3: Catch the Crescent Wing Butterfly. Travel to Moon Hollow and find it near the crystalline structures in the central grove. Approach slowly and swing when it lands.

Step 4: Catch the Spiny Harvestman. Go to the Cave area in Duneburrow and locate it on the cave floor. Corner it against a wall for the easiest catch.

Step 5: Catch the Wasp Moth. Walk through the transition corridor between Duneburrow and Moon Hollow during nighttime cycles. If it does not spawn, exit and re-enter after a cycle change.

Step 6: Carry all three bugs to the Secret Tomb entrance. With all three bugs in your inventory, head to the tunnel between the Cell Zone and Net Area in Duneburrow. Walk to the rune wall.

Step 7: Approach the rune wall. The runes on the stone door will begin to glow as you get closer. Stand in front of the door, and it will open automatically. Walk through to enter the Secret Tomb.

Rewards Inside the Secret Tomb

The Secret Tomb is worth the effort. Here is what you will find inside.

Celestial Bug Spawns: The tomb contains exclusive celestial variants of bugs that do not spawn anywhere else in the game. These are among the rarest collectibles in Catch Bugs and are highly valued by completionists.

Bonus Experience Farming: The bugs inside the tomb yield significantly more experience points than standard catches, making it one of the best spots for leveling up your collector rank.

Exclusive Achievements: Entering the tomb unlocks hidden achievements tied to your profile. These achievements are permanent and display on your collector card.

Ancient Decorations: The tomb contains collectible ancient aesthetic items and decorations that you can use to customize your personal space in the game hub.

Limited-Time Event Access: Some community events and seasonal challenges tie into the Secret Tomb, giving players who have unlocked it access to exclusive limited-time content.

Tips for Catching the 3 Required Bugs

These tips come from community testing and my own experience running through the process multiple times.

Never sell required bugs mid-quest. This is the single most common mistake players make. You need all three bugs in your inventory at the same time. Sell your extras, not the ones you need for the tomb.

Use multiplayer for the Wasp Moth. Having other players in the transition corridor zone appears to increase the Wasp Moth spawn rate. If you are struggling to get it to appear, invite a friend or join a populated server.

Catch during the right time of day. The Crescent Wing Butterfly is easier to spot at dawn and dusk. The Wasp Moth spawns more frequently at night. The Spiny Harvestman does not seem affected by time of day.

Upgrade your net speed first. Before attempting any of the three bugs, prioritize net speed upgrades over inventory size or net range. Speed is what matters most for the Harvestman and Wasp Moth.

Be patient with spawns. None of the three bugs are guaranteed to appear immediately. If you do not see them, leave the area, wait for an in-game cycle, and return. Persistence pays off.

FAQs

Wrapping Up Your Secret Tomb Quest

Unlocking the Secret Tomb in Catch Bugs comes down to three things: having the right prerequisites done, catching the Crescent Wing Butterfly, Spiny Harvestman, and Wasp Moth, and bringing them all to the rune wall in Duneburrow. The tomb entrance is hidden between the Cell Zone and Net Area, and the rewards inside — from celestial bugs to exclusive achievements — make every minute of hunting worth the effort.

If you are working through this for the first time, focus on upgrading your net speed before anything else. Then catch the Crescent Wing Butterfly and Spiny Harvestman first, since they are more predictable, and save the Wasp Moth for last since its spawn can be inconsistent. Once you are inside, take your time exploring the tomb. The celestial bugs inside are some of the best catches in all of Catch Bugs, and the achievements you earn will stay with your profile permanently.