What is it?
A daily Serum Collection puzzle — a Tetris-like board where you recover Serum Fragments — paired with a weekly Serum Shop to spend them. Confirmed Mechanic The puzzle also drops Mutant Crystals.
When does it happen?
The puzzle is daily; the Serum Shop refreshes weekly. An opening Genetic Research Project asks each War Zone to donate 3,000,000 Food (like Alliance Tech) for Alliance Contributions. Update-Sensitive
Who can start it?
Individual puzzle; alliance-wide donation for the research project. Every player.
How does it work?
Place blocks to form lines and recover the fragments sitting in each line — fewer moves means more fragments. Serum also comes from the Season Skill on zombie kills and various rewards. Spend the fragments in the Serum Shop, prioritizing UR items. Confirmed Mechanic
What should I prepare?
Nothing — just don’t skip it. It’s free Mutant Crystals and serum every single day.
How do we win?
Solve the daily puzzle in as few moves as possible for maximum fragments, then spend in the Serum Shop on UR items first (some SSR are worth it) — and buy before the weekly refresh so nothing is left on the table. Corroborated Strategy
Common mistakes
- Skipping the daily puzzle — free crystals and serum lost for good.
- Buying SSR items over UR.
- Forgetting to spend before the weekly shop reset.
Leadership protocol
Drive the Genetic Research Project donations (3M Food per War Zone) for the Alliance Contributions, and remind members it’s a daily free-value habit. Leadership Protocol
The puzzle is free Mutant Crystals and Serum every day, and it scores on efficiency, not spend. Solve it in fewer moves for more fragments, then spend them on UR items in the Serum Shop before the weekly reset. Two minutes a day you can’t afford to skip.