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1Clear out junk files and repair common Windows errors2Fix the driver behind crashes, sound loss and screen glitches3Repair Windows errors before they cause bigger problemsThere are 20 Outer Dungeons in the base game of Digimon Story: Time Stranger: four each for five challenge types. Their entrances appear as glowing red diamond rifts, sometimes concealed by destructible scenery. The list below follows area progression, not dungeon number. A separate Nintendo-listed add-on contains three more resource-focused halls; those DLC dungeons are not part of the 20-location base-game checklist.
How to find and replay Outer Dungeons
Outer Dungeons start appearing after your first visit to the Digital World. Look for a glowing red diamond rift in the field. If you do not see one, check nearby breakable scenery: some entrances are hidden behind crates, barrels, rocks, or debris. Use a Digimon’s Digi-Attack to clear the obstruction.
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Once you discover an entrance, the dungeon is registered and can be replayed from the Theater. One story walkthrough shows a rift in the Marunonaka Line station area. The locations below use the area labels and cues described by the guides; no reliable coordinate map is established, so the directions are landmarks rather than coordinates.
All 20 base-game Outer Dungeon locations
Use this checklist in area progression order. Numbering within a challenge family does not necessarily match the order in which you encounter its dungeons.
#1 Best Overall
- Chance encounters with unique characters will shape your journey across time and parallel worlds – and change fate itself
- Journey between the parallel human world and the Digital World: Iliad where Digimon reside with interactive elements/quests to explore
- Enjoy dynamic turn-based combat that combines strategic elements with evolved battle components
- A variety of Digimon & customization options provide limitless ways to approach battles & reveal the bonds formed with your Digimon
| Challenge | Location | Finding cue |
|---|---|---|
| Protect the Giant DigiMeat 2 | Odd Underground Passage | Look in the small unmapped passage on the route into the Digital World. |
| Fight the Ultimate Digimon 3 | Central Town: Downtown | Break the crate in the upper area to uncover the entrance. |
| Fight the Ultimate Digimon 1 | Central Town: Spiral Waterway | At the entrance, turn around and destroy the barrels. The guide notes this portal appears on a later visit. |
| Speed is Victory 2 | Factorial Town | Near Locomon; break the nearby barrel. |
| Time Attack Boss Battle 2 | Abyss Beach | Swim into the small cave in the first area. |
| Fight the Ultimate Digimon 2 | Gear Forest: Shaded Woods | Reach the late-area entrance using grapple points and vine swings. |
| Protect the Giant DigiMeat 1 | Gear Forest Village | Check the left side of the village. |
| Time Attack Boss Battle 4 | Gear Forest: Shade Tree Pier | Look for the portal on a platform in the right half of the area. |
| Survive to the End 1 | Shinjuku: A Certain Back Alley | Search the top-left corner for the hidden entrance. |
| Survive to the End 2 | Marunonaka Line: Shinjuku Station | Check the southern edge of the station. |
| Speed is Victory 3 | Present Day Abyss Beach | Climb the ladder on the left and break the rocks blocking the cave. |
| Survive to the End 3 | Abyss Sanctuary | Look in the rightmost area as you traverse the dungeon. |
| Time Attack Boss Battle 3 | Shinjuku: East Shopping District | At the former home-base area, attack the debris to reveal the rift. |
| Time Attack Boss Battle 1 | Akihabara: A Certain Back Alley | Search the back-alley area. |
| Speed is Victory 4 | Paradise Colosseum | Look by the tables. |
| Speed is Victory 1 | Factorial Area | Find the entrance in the amusement-park section, accessible after progressing through the arena tournament. |
| Protect the Giant DigiMeat 3 | Dark Castle | Search the top-right corner. During both relevant Geckomon teleports, select the upper dialogue option, as the guide specifies. |
| Survive to the End 4 | Heat Cosmic: Yellow Flame Area | Near the end of the area, break the rocks behind a treasure chest. |
| Fight the Ultimate Digimon 4 | Chill Cosmic: Crescent Moon Area | After the second slide, take the elevator to the platform. |
| Protect the Giant DigiMeat 4 | Chill Cosmic: Throne Room | Check behind the throne. |
Area names can differ slightly between guides—for example, “Heat Cosmic” and “Flame Cosmic.” Use the label displayed in your game where it differs.
What each challenge type requires
Survive to the End
Stay alive until the timer runs out. The optional crystal objective asks you to avoid enemy preemptive attacks.
Speed is Victory
Race on Peckmon while avoiding obstacles and enemies. Entry requires Vade Tickets. A guide notes that the obstacle allowance changed after an update, so launch-era instructions may not match every current version.
Rank #2
- AN EPIC STORY OF CONNECTION - Take on a mission to uncover the mystery of the world’s collapse, where chance encounters with unique characters will shape your journey across time and parallel worlds - and change fate itself.
- ADVENTURE BETWEEN WORLDS AND TIME - Journey between the parallel human world and the Digital World: Iliad where Digimon reside. Explore the Digital World and its intricately detailed realms and discover all of its secrets.
- STRATEGIC TURN-BASED BATTLES - Enjoy dynamic turn-based combat that combines strategic elements with evolved battle components. More than 450 Digimon and deep customization options provide limitless ways to approach the challenges of battle and reveal the strength of the bonds formed with your Digimon.
Time Attack Boss Battle
Reach and defeat the boss before time expires. The guide says other enemies can be bypassed if you reach the boss in time.
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Protect the Giant DigiMeat
Keep enemies from reaching the food by using field Digi-Attacks. Avoid being pulled into standard battles when your priority is the challenge objective.
Fight the Ultimate Digimon
Choose among successive Digimon opponents and win three battles. Its optional crystal objective is to collect unique Marks of Mastery.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Completion, rewards, and optional objectives
The GameFAQs challenge guide says a first clear awards a Digimon, while repeat clears can award currency and consumables. It also describes Talent Awakening Boosters and lore as rewards for completing optional crystal objectives. These reward details come from a secondary guide, rather than official patch documentation.
According to that guide, the trophy or achievement requires completing each of the 20 Outer Dungeons once; the extra crystal objectives are not required. This is a guide-reported requirement, not a claim about every platform’s achievement wording.
The Tool Desk
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The 20 locations above are the base-game list. Nintendo separately lists an add-on with three resource-focused Outer Dungeon halls, accessible through the In-Between Theater. Treat those as additional DLC content, not as missing entries in the base-game checklist. Check the Nintendo listing for its current availability and platform details.
Quick Recap
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