Z Tools

Interactive tools to help you dominate Last Z: Survival Shooter

This is the toolkit we use ourselves on Server 277 — built by an active player to fix the gaps left by the in-game UI and the various wiki sites. Everything works in your browser, saves progress locally, requires no account, and is free to use. There's no “premium” tier.

What's in here: eleven free tools across event timing (Alliance Duel Calendar, Lucky Rose, Event Cycle), long-term progression (Research Trees, Tank Modifications, HQ Levels), reference data (Heroes, Buildings), spend planning (Lucky Discounter), the Season 3 building set (S3 Tile Upgrades) and the latest redeemable codes (Last Z Gift Codes). Use the chips below to filter by category.

Alliance Duel Calendar

Track the 7-day event cycle with daily bonus windows, timezone conversion, countdown timers, and optimal strategy times for every event day.

Timezone Support Live Countdown Bonus Schedule

Research Trees

Complete badge costs and node dependencies for all 9 research trees totalling 4,219,144 badges across 161 nodes. Search, expand, plan your research path, and sort by best value-per-badge.

9 Trees 4.2M Badges 161 Nodes

Tank Modifications

Track your Elite tank modification wrench progress. Sub-level planner with auto-complete hierarchy totalling 70,700 wrenches across Weapon, Tire, Trunk, Special and Vehicle mods.

49 Mods 70.7K Wrenches Sub-level Tracking

Heroes

Full skill details for all 26 heroes across Blood Rose, Guard of Order and Wings of Dawn factions.

26 Heroes 3 Factions All Skills

Buildings

Full reference for all 38 buildings — unlock requirements, per-level resource costs, power, and special stats.

38 Buildings 30 Levels Each Resource Costs

HQ Levels

Reference table of HQ upgrade requirements: buildings, resource costs and heroes level cap for HQ 1–35.

35 Levels Resource Costs Heroes Cap

Event Cycle

Live tracker for the diamond-spend rotation — Gacha Go, Bullseye, Lucky Discounter and Lucky Chest. Shows what's active now, what's next, and a live countdown to the next swap.

Live Countdown 4-Week Cycle Re-anchor

S3 Tile Upgrades

Season 3 Everfrost Era planner for Bio Lab, Smart Greenhouses and the three combat buildings (Icy Arsenal, Icy Fort, Command Post). Strategic priorities, per-level stats and a Frost Core / Ice Bloom cost tracker seeded with confirmed in-game values.

5 Buildings Per-Level Stats Confirmed Costs

Last Z Gift Codes

Running log of redeemable Last Z gift codes, updated automatically — every active code with one-tap copy, plus a history of past codes with their rewards, source and expiry.

  • LZSCIENTIST
  • 325KONGRATULATIONS
  • ARMEDAUGUST
All Active Codes Copy to Clipboard Redeem Guide

Lucky Rose Tracker

Weekly Lucky Rose number log. See this week's lucky number and the buff it triggers when you send that many roses, plus a running history of past weeks — curated and updated each week.

This Week Weekly Log Variable Buffs

Lucky Discounter

Cycle Calculator for the Lucky Discounter event — works out which draw attempt you're on and how many tickets remain to the next guaranteed 90% Off checkpoint (5 / 9 / 18 / 32). Includes the full probability breakdown and pity system reference.

Cycle Calculator Pity 5/9/18/32 Probabilities