◎Foundations
Learning the Basics
Starting paths for free-to-play players and anyone who wants to spend with a plan.
Apocalypse
Pacific Central Eastern 
London 
Istanbul 
India 
Jakarta 
Sydney State 683 Field Intelligence
Survive Smarter.
Build Stronger.
Lead Better.
Declassified Last Z strategies for new players, growing alliances, and competitive states—from first-day decisions to advanced seasonal warfare.
01
Choose your mission
What are you trying to accomplish?
Start with the path that best matches what you need today.
◎Start here
I'm New Here
Learn what to prioritize, what to avoid, and how to build efficiently from the beginning.
Begin with the basics →✦Personnel files
I'm Building My Heroes
Browse hero dossiers, roles, factions, positioning, and long-term formation guidance.
Open the hero directory →❄Current operation
My State Is Entering Everfrost
Follow the complete Season 2 briefing from setup through Mastery and spending.
Enter Everfrost →▦Tools & Intel
I Need a Calculator
Get direct answers for stars, EXP, skill books, equipment, and HQ requirements.
Open the calculators →Current Operation
Season 2: Everfrost Era
Everfrost changes the battlefield with new enemies, resources, buildings, events, Mastery paths, heroes, and spending decisions. The full briefing is organized into seven connected files.
02
Most useful right now
Start with the strongest field files
These are the best entry points into the guide today.
Season 2
Everfrost Era
The complete seasonal command briefing.
Reference
Hero Personnel Files
Roles, factions, seasons, and positioning.
Strategy
Free-to-Play
Grow efficiently without competing through spending.
Strategy
Smart Spending
Prioritize permanent value and avoid waste.
Calculator
Hero Star Calculator
Plan fragments and star progression.
Calculator
Exclusive Equipment
Estimate equipment progression materials.
03
Field departments
Browse the full handbook
Each department groups related guides by the problem they solve.
✦Personnel
Heroes & Squads
Hero dossiers, faction information, roles, positioning, and future formation guidance.
▦Engineering
Development
Buildings, resources, power growth, and the decisions that shape account efficiency.
❄Seasonal intelligence
Season Guides
Complete seasonal briefings, from State Foundations to the full Everfrost archive.
♜Command
Alliance & State
Leadership, communication, coordination, diplomacy, and state strategy.
◈Operations
Events
Preparation, priorities, rewards, and alliance coordination for recurring events.
Tools & Intel
Need an answer, not another guide?
Turn upgrade questions into clear numbers before committing fragments, books, equipment materials, or building resources.
Open Tools & Intel683
From State 683
Built from real gameplay—not theory alone.
SIN's Declassified State Survival Guide grew from alliance leadership, seasonal preparation, player questions, mistakes, experiments, and lessons learned inside State 683. The goal is simple: organize that experience so the wider Last Z community can make better decisions faster.
How to read the files
Each label tells you what kind of page you are opening.
Guide
Step-by-step explanations and practical instructions.
Reference
Facts, records, tables, and quick-look information.
Strategy
Priorities, tradeoffs, and long-term decisions.
Calculator
Interactive tools for planning upgrades and materials.