9 events, described in a sentence each. What they are — not how to win them.
Verified· Last checked 2026-09-04· 1 independent source
These descriptions are dated. Our source's newest post is August 2025.
Event shape is stable — a bi-weekly event stays bi-weekly — but rewards, scoring and exact
timings change. Treat the shape as reliable and the specifics as needing a second look.
Ace Commander
Ace Commander is a week-long series of events designed to help you progress through the game.
Descriptions above say what an event is. These are its rules — the parts
that decide what you should do — and each one is stated independently by an English and a Japanese
guide. We publish no reward tables: those change, and a stale rewards table is worse than nothing.
Dead Rising — runs a total of
20 waves
What each source actually says
ultimateguidetopns.com
“that bring us to the 20th wave. Just like the 10th, the zombies are attacking the fort”
Our translation: Zombies from LV1 to LV20 attack. LV10 and LV20 attack the guild fort and do not come to the sanctuary.
The Firefly Trial personal challenge — has a personal challenge of
30 levels
What each source actually says
ultimateguidetopns.com
“there are 30 waves of men on motorcycles to get through to clear the personal challenge”
pns-mit.org · Japanese
“自分専用の「使者・蛍火」をレベル1から順にレベル30まで撃破することでクリアとなります。”
Our translation: You clear it by defeating your own Firefly Messengers in order from level 1 through level 30.
Clearing a Firefly difficulty — also counts toward
Every difficulty below it. One player clearing difficulty 9 counts toward the alliance total for 9 and everything under it — so pushing your own hardest level helps unlock the easier ones for everybody.
What each source actually says
ultimateguidetopns.com
“If you have 10 players clear, for example, a Difficulty 9 Personal Challenge, then Alliance Challenge Level 9 and under all unlock”
pns-mit.org · Japanese
“ある難易度をクリアすると、その難易度以下の全ての難易度をクリアした人数としてカウントされます。”
Our translation: Clearing a given difficulty counts you as having cleared every difficulty at or below it.
Unlocking a Trapped Messenger at difficulty 3 or above — needs alliance clears numbering
10 players
What each source actually says
ultimateguidetopns.com
“To unlock a Trapped Messenger, you need 10 players in your alliance to defeat their Personal Fireflies in the corresponding level”
Our translation: When this count exceeds the number set for each difficulty (difficulty 1: 5 players, difficulty 2: 8, difficulty 3 onward: 10), you can summon the Trapped Messenger.
A Sonic Decoy run — lasts
30 minutes
What each source actually says
ultimateguidetopns.com
“30 minutes of pulse-pounding hardcore rally action”
pns-mit.org · Japanese
“1回の所要時間は30分です。”
Our translation: One run takes 30 minutes.
An alliance with 80 or more eligible members — may enter
Two groups instead of one. Below that it is a single group.
What each source actually says
ultimateguidetopns.com
“Alliances with 80+ players will have the ability to schedule TWO groups”
pns-mit.org · Japanese
“上記の条件を満たすギルドメンバーが20人以上で1グループ、80人以上で2グループ参加可能です。”
Our translation: With 20 or more guild members meeting the above conditions one group can enter, and with 80 or more, two groups.
March time in Defense of Alliance — is fixed at
30 seconds each way
What each source actually says
ultimateguidetopns.com
“The march time is fixed to 30 seconds each way, so there is no need to use march speedups”
Our translation: Marching to a zombie and returning to your sanctuary takes 30 seconds regardless of distance — one minute for the round trip.
Doomsday Expedition hospital — auto-heals each Friday
20 percent
What each source actually says
ultimateguidetopns.com
“Each Friday at 00:00 UTC, 20% of the troops in the Doom Hospital are healed”
pns-mit.org · Japanese
“毎週金曜日のリセット時に、自動的に20%の負傷兵が「応急薬」を消費せずに回復します。”
Our translation: At each Friday reset, 20% of wounded troops recover automatically without spending first-aid medicine.
Doomsday Expedition wounded left untreated at event end — are permanently lost
20 percent
What each source actually says
ultimateguidetopns.com
“you will lose 20% of them permanently if you do not heal them before”
pns-mit.org · Japanese
“イベント終了時に治療されていないと20%が消滅します。”
Our translation: If they are not treated by the end of the event, 20% are lost.
Our two sources disagree about one of these. On unlocking a
Firefly Trapped Messenger, the English guide states a flat 10 players.
pns-mit.org says the threshold changes with difficulty — 5 at difficulty 1,
8 at difficulty 2, and 10 from difficulty 3 upward. They agree only from difficulty
3 up, so that is the only range we claim above. We are not averaging them and not picking the
tidier one; below difficulty 3, go and look.
Two events are still missing a description.Wasteland King
— its page is a long walkthrough with no sentence saying what the event is, and we would
rather leave a gap than write a definition ourselves. Lairathon — our source describes it as one
alliance's own activity, not a game event.
Dead Rising was on that list until the Japanese guide gave us a
plain definition and two rules to go with it. Both are above.
Get answers where your alliance already talks
Event schedules are per-server, so /event add lets your admin put your own cycle into Discord.