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Season 1

Professions, Radiated Land, buildings, Season Pass and city warfare.

Season 1 of Z Route: Redemption is S1: Radiated Land. It adds a γ Pathogen and Virus Resistance, two classes (Engineer and War Leader), season buildings such as the Virus Lab and Uranium Crystal Refinery, and a 49-day season after a preparation phase. Those phase lengths are the same on every server group; calendar dates are not, so this hub does not give one worldwide start or end date.

Last updated: 14 November 2026

Season 1: Radiated Land banner from Z Route: Redemption

Where to start

Work through the season in this order. Each step has a full guide.

  1. Build the Class Hall in the preparation phase and pick Engineer or War Leader. The professions guide covers the level 40 cap, Class EXP, resets, and every skill.
  2. Raise Virus Resistance once the season is live. Start with the Virus Lab (Base level 10), then learn how infection, storms and cures work in the Radiated Land guide and the buildings guide.
  3. Run the Season Pass every day. The dailies alone can reach level 50 if you start early and stay consistent; the Season Pass guide has a weekly route and the reward tracks.
  4. Take a Military Stronghold before you think about a city. War declarations are Wednesday and Saturday only, and only R4 or R5 can declare. The city warfare guide is the prep checklist.

Season buildings and several season resources are removed when the season ends; class level and Class EXP are kept. Leftover Immune Protein, Mutant Shards and Uranium Crystal convert to Class EXP.

Season 1 guides

Every Season 1 guide lives at /guides/season1/… and is also listed in the card grid at the top of this hub.

Guide What it covers
Professions: Engineer vs War Leader Class Hall unlock, the level 40 cap, Class EXP, resets, every Engineer, War Leader and shared Season 1 skill, and which class to pick.
Radiated Land and the γ Pathogen Virus Resistance, infection and cure, Antibody, the γ Pathogen Storm schedule, and Clear Radiation Sources (radiation clears and Giant Mutant Lizard attacks use different daily caps).
Season buildings and the resource loop Virus Lab and Uranium Crystal Refinery unlocks, build order, Weekly Pass refinery, and how leftover season resources convert to Class EXP.
Season Pass rewards 50 pass levels, free / premium / deluxe totals, daily and non-daily quests, a weekly route to level 50, and the Season Weekly Pass.
City warfare Military Strongholds, Wednesday and Saturday declarations, the 21+ member rule, 4-city caps, All-Out Strike, and a first-battle checklist.

What is Season 1: Radiated Land?

The season is called S1: Radiated Land, and the theme is Virus / Radiated Land. A preparation message announces that Radiated Land is coming. When the season starts, Victor the Cult Leader has sent mutated radiation zombies to seize cities, and the virus has spread through the Radiated Land. Alliances move to the map’s outer edges, and the Capital has fallen.

Radiation has made zombies stronger. Virus Resistance is what you build to limit γ Pathogen infection. Recon Aircraft can remove stacks from an infected ally. New season buildings and resources help you fight the virus, and they are removed when the season ends. Related resource pages already on the site are Uranium Crystal, Immune Protein and Class EXP.

When the season opens, review the season rules, work through Season Chapter Missions, lead Alliance Milestone tasks, and use the seasonal events. The Monument days and Aria’s promotion rules are below.

How long is Season 1?

Every server group uses the same phase lengths. Calendar dates still differ by group, so use the timers on your server rather than a single worldwide date.

Phase Length
Match time to pre-time 4 days
Pre-time to start time 14 days
Start time to end time 49 days
End time to extra time 7 days

War declaration is only available on Wednesdays and Saturdays, and only Alliance R4 and R5 can declare war. See the city warfare guide for the full rules, including the requirement of more than 20 members (21+).

Season 1 Monument milestones

The days below are season-day numbers, not dates on a wall calendar. The full weekday-aware tool is the Monument milestone timeline.

Season day Milestone Summary
1 S1: Radiated Land Season I has arrived, and a new γ Pathogen is spreading.
1 Season Boost During the season, use the Gamma Terminator Base Skin for additional virus capacity and other bonuses.
1 Zombie Siege Fresh challenges with increasingly threatening waves. See also the Zombie Siege event guide.
4 Monroe Exclusive Weapon Monroe receives an Exclusive Weapon that greatly increases her stats.
18 Leah Exclusive Weapon Leah receives an Exclusive Weapon that greatly increases her stats.
39 Yana Exclusive Weapon Yana receives an Exclusive Weapon that greatly increases her stats.
57 Black Market A mysterious merchant arrives at your Base with many valuable treasures.
58 Champion Showdown A cross-Warzone showdown: support, compete, and fight for rankings.

Numeric weapon bonuses are not listed here. Use the Exclusive Weapon calculator for Monroe, Leah and Yana, and their hero guides: Monroe, Leah and Yana.

Hero promotion in Season 1

In this season, Aria can be promoted to a UR Hero using promotion items, and Monroe, Leah and Yana unlock Exclusive Weapons.

  • After the event starts, eligible designated SSR heroes can be promoted to the corresponding UR heroes in the event interface.
  • The SSR hero must be 5★. Hero level is not restricted.
  • After promotion, star level resets to 3★, skill levels reset to Lv.1, and hero level stays the same. The original SSR hero’s Wall of Honor disappears.
  • Skill Insignias used for skill upgrades are refunded by mail. Shards used for Wall of Honor upgrades are refunded as the corresponding hero shards. Shards spent to take the SSR hero from 0★ to 5★ are not refunded.
  • The new UR hero can be evolved with original hero shards or SSR Omni Hero Shards, and evolution costs are doubled.

The Awakened Aria (UR) guide covers UR Aria’s stats and skills.

What is removed at season end

When the season ends and the settlement period begins:

  • γ Pathogen infection and spread cease.
  • Personal season structures are reset and removed, which may reduce power. Season buildings are also removed at the end of the season countdown.
  • Season-exclusive class skills are reset and removed, and consumed class skill points are refunded. Class level, Class EXP and Class EXP items are not reset.
  • Season-related missions are reset and removed. Season leaderboards stop changing in the settlement period.
  • Season-exclusive resources and items are removed. Immune Protein, Mutant Shards and Uranium Crystal convert into Class EXP at the end of the countdown.
  • You can no longer declare war on cities or attack Military Outposts in the settlement period, and you can no longer buy the Season Pass or Weekly Pass.
  • Alliance Loot held by the alliance is also cleared at the end of the countdown, so alliance admins should distribute rewards first.

For Season 1 shop advice already on the site, use the shop guide.

Frequently asked questions

Can Aria be promoted in Season 1?

Yes. Aria can be promoted to a UR hero with promotion items if the designated SSR hero is 5★. After promotion the hero becomes 3★ with skills reset to level 1, and hero level is unchanged. Shards spent to take the SSR hero from 0★ to 5★ are not refunded. See the promotion rules above and the Awakened Aria guide.

When do exclusive weapons arrive?

On the Season 1 Monument list: Monroe on day 4, Leah on day 18 and Yana on day 39. Those are season days, not calendar dates.

What happens to Immune Protein and Uranium Crystal?

They are cleared at the end of the season countdown and converted into Class EXP, along with Mutant Shards. Class EXP itself is kept. The conversion ratios are in the buildings guide.

Do season buildings or class levels stay?

Season buildings are removed. Class level, Class EXP and Class EXP items are kept; season-exclusive class skills are removed and their skill points are refunded.

Why is there no single start date on this page?

Phase lengths are the same for every server group (14 days of preparation, then 49 days of season), but the calendar dates are not. Use the season timers on your server.

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