An Arknights (KR-server) companion · 한국어 / English / 日本語
Terra Archive is a non-commercial fan toolkit for Arknights players (Doctors). From researching operators to planning your base, recruitment, farming and upgrade budgeting, and catching up on the story — it parses the game data directly and an automated pipeline keeps everything up to date. No install, no login; it runs right in the browser.
Six tools in one. Tap a card to jump to that feature.
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Base Auto-Planner
Just enter the operators you own and it automatically builds the whole A/B two-shift assignment for the 243 base (factories, trading posts, power plants, control center, reception room, and more) for you.
It isn't a tool that does 100% for you. By accounting for synergy sets, cross-facility point systems, and shift policy, it locks in 90%+ of the overall framework automatically — and is designed so you, the Doctor, finish the remaining 10% to fit your preferences and edge cases. Per-room manual edits, fill-empty-slots, per-operator Elite adjustment, and production-priority modes are all supported.
Choose a production priority: Gold-first, Battle Record–first, or Balanced
Auto-detects faction synergies (e.g. the Kjerag trading-post set) and token systems (Worldly Plight, etc.)
Import your MAA (MaaAssistantArknights) operator-box scan to set ownership and Elite at once
Export/import assignments; can include future (CN-first) operators in the calculation
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Operator Encyclopedia
Every operator's stats, skills, talents, potentials, modules, and base skills in one place.
Filter by faction, class, subclass, combat tags, and synergy concepts; search by name, nickname, or effect
Per–Elite-phase stats and range, skill SP and duration, module stats and effects in full detail
Synergy (concept-deck) tags group operators that work well together
Community-submitted nicknames are tallied and made searchable — find operators by nickname too
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Recruitment Helper
Calculates which guaranteed or high-rarity operators a recruitment tag combination can yield.
For each selected tag combo, shows the possible operators and the minimum guaranteed rarity
Ranks guaranteed high-rarity combos first so you don't miss them
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Farming & Upgrade Sim
Finds the best farming stage per material and totals the materials an upgrade will cost.
Best sanity-efficiency stage per material, based on Penguin Statistics real drop rates
Totals the LMD, EXP, and materials needed for Elite, skills, masteries, modules, and leveling per operator
Queue several operators to plan at once — see exactly what and how much to farm
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AI Story Digest
Terra Chronicle — events, main story, and Integrated Strategies on a Terra-calendar timeline
Summarizes event side stories into a ~10-minute read, illustrated with cutscenes.
AI digests written from the full story script — the plot, condensed, for busy Doctors
A Terra chronology timeline lays out events in order at a glance
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Integrated Strategies Guide
Per-theme IS reference: floor layouts, battle nodes, an enemy dex, relics, and ending conditions — all difficulty-aware.
Node maps per floor with in-game map previews, enemy rosters, spawn counts, and emergency-op multipliers
The enemy dex recalculates stats live as you change the difficulty grade
Relics, records, encounter events, and ending unlock conditions are cross-linked and clickable
Preview the CN-first theme (沉沦者的黑流树海) with the future-data toggle, Chinese originals alongside
Future (unreleased) data
Turn on 'Include future data' in the header to preview operators, materials, and events not yet on the KR server (CN-first). Unreleased text is provided as an unofficial AI translation until launch — clearly labeled as such — and is automatically replaced with official data once the KR release lands in the source.
Data & updates
Data is based on community game-data extracts (ArknightsGamedata) and real drop rates from Penguin Statistics. When a new version ships, an automated pipeline detects it and regenerates the operator, base, recruitment, farming, and upgrade data together — so the site catches up quickly after each update.
Unofficial fan site
Terra Archive is an unofficial, non-commercial fan site unaffiliated with Hypergryph or Yostar. All in-game images, names, and story text remain the property of their respective owners, and we respect the fan-content guidelines. It is not operated for profit.
Report errors or suggest features via the feedback button on each page.
