WEAPON PROGRESSION PLANNER

Each weapon in Arknights: Endfield progresses through six breakthrough stages, called Breakthrough 0 (B0) through Breakthrough 5 (B5). Every breakthrough raises the weapon's level cap and unlocks a tier of skill-multiplier scaling. The planner takes your target breakthrough for each selected weapon, looks up the per-stage material cost from the in-game data tables, sums the cost across every stage between your current state and the target, and adds the level-up XP cost to take the weapon from level 1 to the new cap.

When you mark materials you already own, the planner subtracts them from the total before showing the remaining-to-farm column. Owned counts persist in browser localStorage, so the checklist survives page refreshes and you can update progress in place as you farm. Switching browser or clearing site data resets the saved state — export to CSV first if you need a portable record.

Breakthrough material categories

• Weapon Components — universal crafting parts (cores, frames, sockets) used across every weapon type. Drop from patrol stages and the weekly Joint Operations rotation.
• Essence — element-tagged or weapon-type-tagged consumables that scale in tier alongside breakthrough stage. Common essence drops from world-boss patrols; high-tier essence drops only from named bosses and weekly raids.
• Weapon XP Materials — leveling-fuel items consumed when raising the weapon's level inside a given breakthrough cap. The XP cost curve is non-linear: late levels inside a breakthrough cost significantly more than early levels.
• Boss-Drop Catalysts — limited 5★ and 6★ weapons require a small number of catalyst items that only drop from specific boss fights or premium event reward tracks. The planner flags these separately so you can see at a glance whether the bottleneck is a routine farm or a weekly clear.
• Credits & Currency — the basic credit cost paid alongside every breakthrough and level-up. Usually not the bottleneck, but included in the export for completeness.

Why the planner pairs with the Recommender and Builds pages

This tool is a material accountant — it tells you what to farm once you have already decided which weapon to invest in. It does not rank weapons or compare DPS. For ranking, start at the Operator Builds page to find the best weapon for the operator you are leveling, or at the Weapon Recommender to score every weapon against an operator profile. Once a target weapon is locked in, drop it into this planner to see the exact farming bill.

Export formats and what they are for

• Plain text — line-broken material list, formatted for Discord paste. Best for quickly sharing a single weapon's bill with a friend or guild channel.
• Markdown — table-formatted output that renders cleanly in Notion, Obsidian, and GitHub gists. Use when you maintain a long-running farming spreadsheet outside of your browser.
• CSV — opens directly in Google Sheets or Excel. Best for cross-referencing multiple weapons against your inventory and building custom pivot views.