Plan Every
Blood Moon
Like a Pro
Calculate ammo, defenses, zombie waves, survival chances, and base readiness for 7 Days to Die. No guessing. No dying on Day 7.
Featured Tool
Horde Night Planner
Our most comprehensive tool. Enter your current game state and get an exact breakdown of zombie counts, ammo requirements, demolisher probability, and survival chances - with tactical recommendations tailored to your setup.
- Estimated zombie count with special zombie breakdown
- Ammo recommendation by weapon type
- Survival probability score (0–100%)
- Wave-by-wave timeline visualization
- Save/load 5 build slots locally
Survival Calculators
All 12 Tools
From horde planning to base stability - every tool you need to survive 7 Days to Die.
Horde Night Planner
Calculate zombie counts, ammo needs, survival probability, and get tactical recommendations for your next horde night.
Blood Moon Calculator
Predict your next blood moon day, game stage scaling, and what threats you will face as days increase.
Ammo Crafting Calculator
Calculate exactly how much brass, lead, and gunpowder you need to craft enough ammo for any horde.
Base Stability Calculator
Estimate your base structural integrity using material types, storey count, and support placement.
Loot Stage Calculator
Find your loot stage based on player level, game stage, biome, and perks to know what item quality to expect.
Zombie Spawn Predictor
Predict zombie spawn rates by biome, time of day, and blood moon status. Plan your exploration accordingly.
Skill Build Planner
Plan your character build by allocating attribute and perk points. Find the optimal path for your playstyle.
Electricity Planner
Calculate generator fuel consumption, wire layouts, and power budgets for your electrical defense grid.
Farming Calculator
Plan your crop yields, water and seed requirements, and harvest cycles to maintain a sustainable food supply.
Horde Readiness Score
Rate your overall readiness for horde night across ammo, base integrity, traps, medical supplies, and food.
POI Risk Calculator
Assess the danger level of a Point of Interest based on type, biome, game stage, and your gear quality.
Multiplayer Scaling
Understand how game stage and zombie counts scale in multiplayer. Plan as a group with accurate difficulty data.
Common Questions
FAQ
Is this toolkit free to use?
Yes, completely free. All 12 tools run in your browser with no account required. Your builds are saved locally to your device.
How accurate are the horde night calculations?
The formulas are based on observed 7 Days to Die Alpha 21 game mechanics. Zombie counts, game stage scaling, and ammo estimates are approximations - actual results vary based on your exact game settings.
Does it work for multiplayer?
Yes. The Horde Night Planner and Multiplayer Scaling Calculator both account for player count and how the game scales zombie counts and game stage in co-op sessions.
Can I save my builds?
Yes. Every tool has a Save/Load panel with 5 named save slots stored in your browser's local storage. You can also export builds as JSON files for backup or sharing.
What version of 7 Days to Die is this for?
The tools are tuned for Alpha 21 mechanics. Some values may differ slightly in earlier or later versions as The Fun Pimps continues development.
Ready for Your Next Blood Moon?
Start with the Horde Night Planner - the most complete pre-horde checklist tool available.
Open Horde Night Planner →