Limited-Time Cave of Space-Time Event Guide
The Limited-Time Cave of Space-Time Event in MementoMori lets you take on event encounters in the Cave of Space-Time to earn a special currency. See the current Limited-Time Cave of Space-Time Event, how to unlock it, its mechanics and rewards, items you can get from its shop, as well as tips on how to play the Limited-Time Cave of Space-Time Event.
Limited-Time Cave of Space-Time Current Event
Into the Cave of Miracle Seekers is Now Active
Into the Cave of Miracle Seekers will be available from November 28, 2025 4:00 to December 8, 2025 3:59. (UTC-7)
Defeat the shadows and collect Forest Sprites' Dew and exchange them at the Limited-Time Shop from November 27, 2025 4:00 to December 12, 2025 3:59. (UTC-7)
Into the Cave of Miracle Seekers Event Guide
How to Unlock Limited-Time Cave of Space-Time Event
Clear Main Quest 2-4
You can unlock the Limited-Time Cave of Space-Time Event by clearing Main Quest 2-4. Once done, just head to the Trials menu and select Cave of Space-Time to participate in the event.
Limited-Time Cave of Space-Time Mechanics
| Limited-Time Cave of Space-Time Mechanics |
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Event Encounters Will Appear
During the limited-time event, event encounters will show up on the branching paths in Cave of Space-Time. They're characterized by the red aura surrounding them that the usual encounters do not have.
Clearing an event encounter rewards you with the usual Cave of Space-Time rewards along with the special currency of the current event.
You Can Reattempt an Event Encounter
If you fail the event encounter, you can still reattempt to do it. When doing so, enemies with reduced HP will have 30% of their max HP restored.
Rewards From Event Encounters Remain the Same Despite the Difficulty
Both Hard Mode and Normal Mode reward the same amount of special currency, so you can opt to do the easier one if you feel your team isn't ready yet.
Limited-Time Cave of Space-Time Event Tips
| Limited-Time Cave of Space-Time Event Tips |
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Pick Blessings That Will Increase Your Team's Survivability Early in the Run
| Blessing | Description |
|---|---|
Angel's Harp |
At the start of the battle, restores HP equal to a certain percentage of a target's max HP to all allies. |
Goddess' Embrace |
If an ally is attacked and their remaining HP percentage is 30% or lower, grants [Regeneration] to the target for 4 turns (cannot be dispelled). Each turn, at the start of the action phase, [Regeneration] restores HP equal to a certain percentage of the target's max HP to them. This blessing activates only 1 time per battle. |
Phoenix's Flame |
When an ally takes damage that would reduce their HP to 0, they survive with 1 HP, and are granted [Invulnerable] for 1 turn (cannot be dispelled). This blessing activates only 1 time per battle. |
Angel's Healing Rays |
At the end of the battle, restores HP equal to a certain percentage of the HP a target has lost to all allies who are alive. |
 Battle God's Ward |
At the start of the battle, increases all allies' max HP and DEF by a certain percentage (cannot be dispelled). A target's max HP and DEF are further increased for each victory in the Cave of Space-Time (30% max). |
 Warrior God's Shield |
At the start of the battle, decreases the damage all allies take by a certain percentage (cannot be dispelled). |
 EVD Blessing |
At the start of the battle, increases all allies' change to evade by a certain percentage (cannot be dispelled). |
Just like in the regular Cave of Space-Time, we recommend picking blessings that increase your team's survivability either through healing, revival, evasion, or straight up increasing their defenses early in the run.
Your team will need all the help they can get because they don't heal between battles.
Pick Blessings That Increase Damage Output Later in the Run
| Blessing | Description |
|---|---|
 Warrior's/ Sniper's / Sorcerer's Soul |
At the start of the battle, increases all Warriors / Snipers / Sorcerers ATK by a certain percentage (cannot be dispelled). |
Warrior God's Sword |
At the start of the battle, increases all allies' CRIT DMG Boost by a certain percentage (cannot be dispelled). |
 ACC Blessing |
At the start of the battle, increases all allies' chance to hit by a certain percentage (cannot be dispelled). |
 Shining Tornado |
At the start of the battle, deals 1 direct attack equal to a certain percentage of a target's current HP to all enemies. |
 Militant God's Baton |
On Level 3 (Hard Mode), at the start of the battle, increases all allies' ATK and DEF by a certain percentage (cannot be dispelled). |
 Battle God's War Cry |
At the start of the battle, increases all allies' ATK by a certain percentage (cannot be dispelled). A target's ATK is further increased for each victory in the Cave of Space-Time (15% max). |
Once you're sure they have enough utilities to survive the encounters, you can then focus on blessings that increase your DPS's damage output.
You can also get blessings that will reduce the enemies' HP to help you clear encounters faster.
Always Pick Event Encounters (If You Can Win Them)
Since these kinds of special events only run for a limited time, we recommend always picking event encounters in order to maximize the amount of special currency you receive.
However, there will be encounters that will be way too difficult for you to handle. In such cases, we recommend skipping them to avoid losing the entire run.
Play Stage 3 On Hard Mode For More Space-Time Coins
You can get the same number of special currency in Stage 3 Hard Mode as with Stage 3 Normal Mode.
Despite this, we still recommend going for Hard Mode to maximize the amount of Space-Time Coins you can get.
Buy Special Event Packs
If you have money to spare, you can buy the Limited Cave Packs in the Event shop. A pack gives you diamonds, kindling orbs, and the special currency for the event!
Limited-Time Cave of Space-Time Event Rewards
Special Limited-Time Currency
Clearing the event encounters in the Cave of Space-Time event rewards you with a special limited-time currency that you can use to buy Prayer Tickets, Witch's Shards, Character Shards, Rune Tickets, Upgrade Materials, Fragments, Runes, Chests, and Keys.
This special currency can also be obtained through missions, so make sure you always claim your rewards there as well.
Limited-Time Cave of Space-Time Shop
| Item | Price (Night Clan's Seal) |
|---|---|
| Carmilla Prayer Ticket | 50 |
| Fenrir Shards x60 | 750 |
| Florence Shards x60 | 750 |
| Amour Shards x60 | 750 |
| Rean Shards x60 | 750 |
| Ivy Shards x60 | 750 |
| Mertillier Shards x60 | 750 |
| Tropon Shards x60 | 750 |
| Primavera Shards x60 | 750 |
| Panel Ticket x1 | 60 |
| Music Ticket x3 | 45 |
| Witch's Shard (SR) x20 | 75 |
| Witch's Shard (R) x60 | 40 |
| Witch's Shard (R) x20 | 15 |
| Rune Ticket x60 | 150 |
| Rune Ticket x5 | 15 |
| Upgrade Water x300 | 55 |
| Upgrade Water x20 | 4 |
| Upgrade Panacea x20 | 50 |
| Upgrade Panacea x2 | 6 |
| Grand Dark Perfume x2 | 380 |
| Dark Perfume x3 | 200 |
| Dark Perfume x1 | 75 |
| Fragment x15000 | 80 |
| Fragment x10000 | 60 |
| Holy Fragment x1500 | 120 |
| Holy Fragment x1000 | 90 |
| Mystery Rune Lv 6 x1 | 16 |
| Mystery Rune Lv 5 x1 | 8 |
| Mystery Rune Lv 4 x1 | 4 |
| Mystery Rune Lv 3 x1 | 2 |
| Mystery Rune Lv 2 x1 | 1 |
| Gold Sealed Chest x1 | 60 |
| Silver Sealed Chest x1 | 30 |
| Bronze Sealed Chest x1 | 15 |
| Gold Key x1 | 4 |
| Silver Key x1 | 2 |
| Bronze Key x1 | 1 |
MementoMori Related Guides
Latest News
| Latest News | |
|---|---|
| 3rd Anniversary Campaign Events and Guide | 3rd Anniversary Countdown Presents Guide |
| Version 4.2.0 Update | Version 4.3.0 Update |
All Current Events
| Current Events | Duration |
|---|---|
 12/9, 12/14 Grand Battles! |
Round 1: December 9 (UTC-7) - December 14 (UTC-7) Round 2: December 23 (UTC-7) - December 28 (UTC-7) |
 Into the Cave of Miracle Seekers |
November 28, 2025 4:00 (UTC-7) - December 8, 2025 3:59 (UTC-7) |
All Patch Notes and Updates
| Version 4.2.0 | |
|---|---|
| 4.2.0 | 4.3.0 |
| Version 4.1.0 | |
| 4.1.0 | - |
| Version 4.0.0 | |
| 4.0.2 | 4.0.0 |
| Version 3.0.0 | |
| 3.23.1 | 3.23.0 |
| 3.22.0 | 3.21.2 |
| 3.21.0 | 3.20.0 |
| 3.19.2 | 3.19.0 |
| 3.18.0 | 3.17.0 |
| 3.16.0 | 3.13.0 |
| 3.12.0 | 3.11.0 |
| 3.10.0 | 3.9.0 |
| 3.8.0 | 3.7.0 |
| 3.6.0 | 3.5.0 |
| 3.4.0 | 3.3.0 |
| 3.2.0 | 3.1.0 |
| 3.0.1 | 3.0.0 |
| Version 2.0.0 | |
| 2.23.0 | 2.22.1 |
| 2.21.1 | 2.21.0 |
| 2.20.0 | 2.19.0 |
| 2.18.0 | 2.17.0 |
| 2.16.0 | 2.15.0 |
| 2.14.0 | 2.13.0 |
| 2.12.0 | 2.11.0 |
| 2.10.0 | 2.9.1 |
| 2.9.0 | 2.8.0 |
| 2.7.0 | 2.6.0 |
| 2.5.1 | 2.5.0 |
| 2.4.0 | 2.3.1 |
| 2.3.0 | - |
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