Dungeon Runs: Keys, Chests & Loot

Why the Dungeon Mode Deserves Your Keys

Every Anime Adventures dungeon run is a 20-floor commitment, and the only thing between you and the Snow Reaper secret unit is a stack of unopened chests. Since Update 20, the Anime Adventures dungeon loop has become the most reliable way to farm star remnants, gems, stat cubes, and curse tokens in a single sitting. Before starting, decide how to spend keys, choose a route, prioritize buffs, and handle each chest.

The mode itself is simple to enter: talk to the key vendor in the lobby, spend a Dungeon Run Key, and pick your first room from a branching map. Everything after that — which rooms you accept, which curses you eat, and when you open chests — decides whether the run pays out or just burns an evening.

How to Get Dungeon Run Keys

Keys are the hard cap on this mode, and there are only a few ways to get them. Stack all of them so you always have a key ready.

The vendor sits near the summon area and refreshes, so buying three keys a day is the steadiest source if you have Sacred Treasures banked. Those treasures come from the Shibuya Portal, which means portal grinding feeds dungeon grinding. If you are short on keys, the full breakdown of Dungeon Run Key sources covers each method in detail.

Codes are the cheapest option but expire, so redeem them the day they drop rather than saving them.

Depths, Rooms, and Path Choices

A run is 20 depths. Each depth is a tower defense stage with roughly 15 waves, and each takes several minutes even when you are comfortable, which is why a full clear runs long. Between depths you pick one of two or three connected rooms, and hovering a node shows its element tags and a difficulty number.

Two rules shape routing. First, a chest is guaranteed roughly every five depths, so chest-heavy paths pay off if you plan to hoard. Second, later shops sell the same buffs as early ones, so don't dump coins on depth 3 when a depth 16 shop will matter more against the boss. Element matching matters too: a floor tagged with elements your team covers is dramatically easier than one you have to brute-force.

If a floor starts collapsing, leaving and re-entering that floor can preserve the run instead of losing it — but treat that as a bail-out, not a strategy.

Buffs and Curses: What to Take and What to Dodge

Shrine rooms hand you a buff and a curse together. Take the shrine when the buff is strong and the curse is something your team ignores.

That last curse deserves a warning. If you stack explosive death range, every kill stuns your own units, which knocks out support and buffer uptime exactly when the boss floor needs it. If you are running a buffer-heavy setup, refuse that curse outright and clear later floors without support if you must.

Armored enemies are the other common wall. Shield-stripping units and high-hit-count attackers cut through armor far better than a single big nuke, and full-defense enemies will waste your cooldowns if you ignore them.

Chest Rules: Save Everything for Depth 20

This is where most runs get thrown away. The game offers chest openings at set depths — usually every fifth floor — and the answer is always no. Chests opened early are gone; chests carried to depth 20 all open at once, and that batch is where the secret unit roll happens.

Because common chests cannot drop the secret, rare chests are the only ones that matter for collection purposes. The Philosopher's Stone item is the jackpot of the mode: it converts every common chest in your inventory into a rare one, so a run with six commons suddenly becomes six additional secret rolls.

Three habits protect your haul. Never open on the mid-run prompt. Always clear the boss before opening anything. And open every chest before you leave the dungeon — leftover chests do not carry into your next run.

Weekend reward events double chest payouts, so bank your keys and spend them during the event window if you can.

What a Full Grind Actually Returns

A chest-heavy run typically produces somewhere between six and ten rare chests, plus a handful of commons. Most rare chests return 450 gems, five star remnants, three stat cubes, or three curse tokens, which means a good run can clear several thousand gems and enough star remnants to fund a decent batch of trait rolls.

The secret unit is the outlier. It can drop in a small number of runs or refuse to appear for a long stretch, so treat Snow Reaper as a bonus rather than a schedule. What you can count on is the currency: star remnants from Anime Adventures dungeon clears are one of the better sources in the game right now, and they feed directly into trait rerolls.

Numbers swing with chest luck buffs, the Philosopher's Stone, and weekend doubling — track your own averages before deciding how many keys a day is worth it.

Practical Tips for Cleaner Clears

• Match elements before difficulty. A slightly easier floor in your elements beats a harder one you have to improvise against.
• Hold coins for late shops. Cost-reduction and damage buffs bought at depth 15–18 decide boss fights.
• Skip support if the curse is bad. Explosive death range will stun your buffers constantly; a raw damage team often clears faster.
• Bring one shield-breaker. Armored bosses and full-defense enemies otherwise eat your entire DPS window.
• Bring bleed against regen. Enemy regen floors stall single-target teams indefinitely.
• Never open chests early. Depth 20 only, every time.
• Spend keys on weekends. Doubled chest rewards are the single biggest multiplier available.

Boss floors scale hard — a depth 20 boss can sit in the tens of millions of HP depending on the buffs you collected — so leave your strongest placed units and cooldowns for the final waves rather than the first.

FAQ

How long does one Anime Adventures Dungeon run take? A full 20-depth clear runs well over an hour, and closer to two hours if you play every floor carefully. Budget your keys around that, not around a quick session.

Can common chests drop the secret unit? No. Only rare chests have a chance at the Snow Reaper secret unit, which is why the Philosopher's Stone and chest luck buffs are the most valuable things you can pick up.

Do unopened chests carry over to my next run? No. Chests left unopened when you exit the dungeon are lost, so open everything after the boss before leaving.

What is the fastest way to get more keys? Combine all three sources: claim the daily login key, buy three keys with ten Sacred Treasures each from the lobby vendor, and redeem active codes the day they release.