Changelog

Recent updates, additions and removals across Z Tools.

This page tracks every meaningful change to Z Tools — new tools launching, existing tools being rewritten, data refreshes after game patches, language additions, policy changes, and bug fixes large enough to mention. Newest releases are at the top.

The site updates roughly every two weeks during active development, and again whenever a Last Z: Survival Shooter patch changes the underlying data (hero skills, building costs, research badges, event rotations). Patch-driven updates are tagged Update; net-new features and pages are tagged New.

For real-time release notes, the What's New ticker at the top of every page shows the last few items. For the official roadmap of what's planned next, see the About page.

  • Update New gift code added

    A new code LZCORESTRENGTH has been added to the Gift Codes log as the latest active code. Codes can expire based on redemptions or duration, so redeem it quickly via your in-game Doomsday Club.

  • Update Lucky Rose updated for this week

    This week's Lucky Rose number is 4 → Fragrance Lingers (Allied Help Duration +120s for 24h) when sending Yellow Roses. The running log keeps every past week for reference.

  • New Last Z Gift Codes — new tool

    A new Gift Codes log with the latest redeemable code at the top (one-tap copy to clipboard) and a running history of past codes with their rewards, source and expiry. Latest code: CELEBRATE300K (300K milestone celebration). Includes the redeem flow and a direct link to the in-game Gift Center.

  • New Lucky Rose Number Tracker — new tool

    A new Lucky Rose Number Tracker for the weekly in-game Lucky Rose event. Send exactly the lucky number of roses to another player and a personal buff fires on the sender — the type and duration change every week. The tool shows this week's number plus a running log of past weeks, with a "Last updated" timestamp on each entry. This week (3 Jun 2026): 6 → +120s Alliance Help boost for 24h.

  • New Troubleshooting Last Z — new wiki article

    A new Troubleshooting guide covering the most common errors and fixes — C000 13 connection errors, app crashes, stuck loading screens, the in-game Clear Cache / Clear Mail Cache controls, account binding (Email plus Google Play Games on Android, Apple Game Center on iOS), lost-account recovery, payment failures, battery drain and bug reporting. Includes a quick-fix TL;DR, an in-game Settings screenshot, an FAQ section and a liability disclaimer.

  • New Event Cycle Tracker — live diamond-spend rotation

    A new live tracker for the diamond-spend hot-event rotation (Gacha Go → Bullseye → Lucky Discounter → Lucky Chest). Shows which event is active right now with a live countdown to the next swap, lists the upcoming three weeks of events with predicted dates, and includes a re-anchor control so you can correct the cycle in 5 seconds if your in-game timer drifts.

  • New S3 Tile Upgrades — Season 3 building planner

    A new Season 3 / Everfrost Era planner covering the Biolab, the four Smart Greenhouses, and all three Glacial combat buildings (Military Depot, Fortress, Military Command). Each building has its strategic priority, max level and stat-per-level baked in, plus an editable per-level cost tracker (Frost Cores, Ice Blooms) that saves to your browser as you upgrade in-game.

  • New Research Tree Unlocks — new wiki article

    A new wiki guide documenting when and how each research tree becomes available — HQ levels, prerequisite trees and percentage gates. Covers the late-game "hidden" trees in detail: Steel Age, Unit Special Training (UST / T10), Field Research, Army Building and Peace Shield. Includes a suggested 14-step unlock path for non-whale HQ 30 accounts.

  • New Wiki and FiR3 split into individual pages

    Every wiki guide (43 articles) and the FiR3 Megahive Rules now have their own dedicated pages — easier to share, bookmark and find.

  • New Data reference tables added to the big tools

    All 161 research nodes, all 49 tank mods and the full 7-day calendar cycle are now visible as static reference tables — useful as a printable cheat sheet or quick lookup. Intro guides also added above every interactive tool.

  • Update Old links now redirect to the right place

    Old links like /discord, /account, /bcem, /fire and /research now redirect automatically to the right page.

  • Perf Lighter pages, faster loads

    Affiliate content consolidated onto the donate page (removed from every other page). The scrolling "What's New" strip pauses when scrolled past to save battery.

  • New Urdu (اردو) language added

    The site is now available in 19 languages. Urdu joins the existing 18 and is fully written in Nastaliq (Arabic-derived) script, with game-specific terms (FiR3, Last Z, Megahive, HQ, Boomer etc.) preserved in English by design. Switch language from the dropdown in the top-right.

  • Update Translations refreshed across all 19 languages

    Comprehensive audit and refresh of every translation file. All 19 languages now contain the same 3,230 content strings — including the new Glory Wars Megahive Rules (9-Point System) on the FiR3 page. Fixed leftover English leakage in Urdu, completed missing "Do Not Track" entries in eight languages, and filled remaining untranslated strings in Thai, Japanese and Russian/Turkish.

  • New Lucky Discounter — Cycle Calculator

    Plug in your Personal Points and diamonds spent on buys to see which draw attempt you're on, refreshes done, and tickets left to the next guaranteed 90% Off (checkpoints at attempts 5 / 9 / 18 / 32). The status pill turns green when you're sitting on a guaranteed 90% pull. Includes a "How to find your numbers" walkthrough referencing the in-game Personal Points indicator and the View Items → Records "Spent" total. Open

  • New Heroes tool

    Reference for all 26 heroes across Blood Rose (9), Guard of Order (9) and Wings of Dawn (8). Full skills broken into name + category + per-level effects. Search by name or skill keyword (march, ATK, gathering, exclusive...), filter by faction, expand or collapse all. Open

  • New Buildings tool

    All 38 buildings with unlock requirements and 30-level upgrade tables. Resource costs, stats, power. Filter by type (Upgradeable / Shortcuts) and search by name or stat. Open

  • New HQ Levels tool

    Reference table for HQ tiers 1 to 35 — required buildings, resource costs (Wood / Food / Zent / Steel) and heroes level cap. Open

  • Update Tank Modifications expanded

    Grew from 25 mods to the full 49-entry / 70,700-wrench set, including Special and Vehicle categories. Milestone totals now match the in-game vehicles: Cheetah 150, Hercules 1,730, Destroyer 10,440, Destroyer-EX 35,300. Open

  • New Research Trees tool

    All 9 trees / 94 nodes / 4,219,144 badges with progress tracking, best-value view and export.

  • New Wiki launch

    40+ in-depth strategy guides covering Capital Clash, VS Duel, Canyon Clash, looting, shields, heroes, equipment and more.