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chaldea.center

Chaldea - Yet Another Planner & Battle Simulator for Fate/GO

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What is Chaldea?

Chaldea is a cross-platform tool for Fate/Grand Order (FGO) players. It has two main parts:

  • Chaldeas – a planner for materials, Servants, events, and similar long-term planning tasks.
  • Laplace – a battle simulator intended to help you build teams and practice 3-turn farming setups.

In practice, it suits FGO players who want to organize resource farming and test team compositions without spending in-game AP first. If you play casually or only follow the main story, a planner may be more than you need; if you grind events, manage limited materials, or optimize farming, the combination is more relevant.

A useful next step is to decide which half matches your problem: use Chaldeas for “what should I farm and when,” and Laplace for “does this team actually clear the node in three turns?” You can visit the tool at Chaldea.

How does Chaldea help with planning materials and servants in Fate/Grand Order?

Chaldea is a cross-platform tool for Fate/Grand Order that splits into two parts: Chaldeas, a planner for materials, Servants and events, and Laplace, a battle simulator for team building and 3-turn farming. For planning specifically, Chaldeas is the relevant half — it is where you track what you need, what you already have, and what is still missing.

What Chaldeas is for

Think of it as a requirements calculator rather than a wiki. Instead of looking up a Servant's ascension and skill costs in one place and your inventory in another, you enter your goal (raise this Servant, max these skills) and the planner tells you the gap. That is most useful when:

  • You are deciding which Servant to invest in next and want to compare total material cost.
  • An event is coming and you want to know whether you can finish a target before it ends.
  • You are short on one specific material and want to see which of your planned upgrades depend on it.

Typical workflow

  1. Add the Servants you care about and set the upgrade targets (ascension stages, skill levels, append skills if applicable).
  2. Enter or import your current material stock.
  3. Read the shortfall, then plan farming or event shop purchases around the largest gaps.
  4. Revisit after each farming session so the numbers stay honest — the planner is only as accurate as your inventory input.

Where Laplace fits

Laplace is separate: it simulates battles to test team compositions and 3-turn farming setups. It does not track your materials. The practical link is that you plan the team in Laplace, then plan the cost of building that team in Chaldeas.

Trade-offs to expect

A planner like this rewards consistent data entry. If you rarely update your inventory, the output drifts from reality and you will trust it less. It also assumes you already know roughly what you want to build; it will not tell you which Servant is "best" for your account. For that kind of judgement, pair it with community resources such as Grand Order Wiki or GamePress.

Next step: open Chaldea, add one Servant you are currently raising, and enter your material counts for that Servant's next ascension. If the gap list is useful to you, expand from there; if you find the upkeep burdensome, keep using it only for big event prep rather than everyday tracking.

How does Laplace simulate battles and assist with 3-turn farming team building?

Laplace is the battle-simulation side of Chaldea, a cross-platform Fate/Grand Order tool. It lets you model a fight before spending AP: you set up your party, the enemy wave, and the sequence of skills, Noble Phantasms and attacks, then run the simulation to see the damage and turn-by-turn outcome. For 3-turn farming, that means testing whether a given team can clear all three waves within three turns rather than discovering a failure mid-farm.

What the simulation is for

The practical value is iteration speed. Instead of farming a node repeatedly to test a lineup, you adjust one variable at a time in the simulator — a different CE, a swapped support, a skill order change — and immediately see whether the turn count still holds. This is most useful when you are deciding between near-equivalent options, such as whether a particular damage CE is required or whether a lower-cost setup still clears.

How it fits 3-turn farming specifically

Three-turn farming usually depends on a chain: charge the party's NP gauges, fire wave-clearing NPs, and refill enough to do it again on the next wave. Laplace is built to model exactly that kind of sequencing, so you can check:

  • Whether each wave dies to the NP or attack you assigned to it
  • Whether your charge skills and CE effects leave enough gauge for the following wave
  • Whether a substitute servant or support changes the turn count
  • Where a run breaks if an enemy survives with a sliver of HP

Who gets the most from it

Players with a fixed farming target and several candidate teams benefit most, as do players deciding whether to invest in a servant or CE for farming. If you already know your team clears comfortably, the simulator adds little; its value is in the uncertain cases.

A sensible next step

Pick one farming node you actually run, enter your current team, and simulate it. Then change a single element — one CE or one skill order — and compare. If the turn count holds with the cheaper option, you have a better farming setup; if it breaks, you know exactly which piece is load-bearing.

Is Chaldea available on multiple platforms and does it require JavaScript to run?

Chaldea is described as a cross-platform tool for Fate/Grand Order, so it is intended to run on more than one platform. Its page also states that JavaScript must be enabled to run the app, which means the browser version depends on JavaScript rather than working as a plain static page.

The tool is split into two parts:

  • Chaldeas — a planner for materials, servants and events.
  • Laplace — a battle simulator for team building and 3T farming.

If you want to use it in a browser, enable JavaScript first. If you prefer not to rely on a browser, check whether a desktop or mobile build is offered for your platform before committing to it as your main planner.

What is the difference between Chaldeas and Laplace within the Chaldea tool?

Chaldea is a cross-platform Fate/Grand Order tool split into two parts: Chaldeas is the planning side, and Laplace is the battle-simulation side.

Part What it does Typical use
Chaldeas Planner for materials, Servants, events and similar long-term needs Deciding what to farm, what to level, and how to schedule event progress
Laplace Battle simulator for team building and 3T farming Testing team compositions and farming loops before spending in-game AP

In practice, Chaldeas answers "what should I work toward?", while Laplace answers "will this team actually clear the node the way I want?" A player preparing for an event might use Chaldeas to map out material targets, then switch to Laplace to verify a 3-turn farming setup for the relevant quest.

Next step: if you are planning a farming session, start in Chaldeas to identify the bottleneck material, then use Laplace to test whether your intended team can clear it consistently. If you only need one, choose based on whether your problem is resource planning (Chaldeas) or team performance (Laplace).

You can access the tool at Chaldea.

Where can I find the documentation and get started with Chaldea?

Start with the app itself: Chaldea is the cross-platform tool described as being made of two parts, Chaldeas (a planner for materials, servants and events) and Laplace (a battle simulator for team building and 3T farming). The page's "Visit Document Site" link is the intended route to the documentation, so begin there for setup and feature guides.

A practical way to decide where to start

  • If you mainly track resources and schedules: start with Chaldeas. It is the planning side, aimed at organizing materials, servants and event timing.
  • If you mainly test teams or farming loops: start with Laplace. It is the simulation side, aimed at building teams and checking 3T farming.
  • If you are new to both: read the documentation's getting-started or installation section first, then pick the half that matches your immediate goal rather than trying to learn both at once.

Example first session

A typical new user might open the documentation, confirm the supported platforms and any login or account requirements, then create a first plan in Chaldeas for an upcoming event. Once that plan exists, they can switch to Laplace to test whether the servants and craft essences they intend to use can clear the farming node in three turns.

As a next step, open Chaldea and follow the "Visit Document Site" link before creating any plans, so you know which half of the tool matches your task.

Related questions

More questions →
How Does Laplace Help With Team Building and 3T Farming in Fate/Grand Order?

Laplace is the battle simulator component of Chaldea, a cross-platform tool for Fate/Grand Order. According to the site's own description, it is "a novel battle simulator to help building your team, help 3T farming." In practice, that means you use it to test team compositions and farming loops in simulation before committing real AP, materials, or grails in the game. It is most useful if you already have a rough idea of the servants you want to use and need to check whether a specific 3-turn (3T) farming setup actually works.

What Laplace Is and Where It Fits

Chaldea is described as being composed of two parts:

Component Role
Chaldeas A planner for materials, servants, events, and similar long-term planning
Laplace A battle simulator for building teams and working out 3T farming

So Laplace is not a general planner. Its scope is combat: given a team and a battle, it simulates what happens. That makes it complementary to Chaldeas — you plan what to build in Chaldeas, then test how it performs in Laplace.

What Team Building With a Simulator Actually Solves

Building a team in FGO usually involves several interacting constraints: NP charge, card distribution, skill cooldowns, class advantage, and enemy HP thresholds. A simulator lets you vary these without spending resources.

Typical questions Laplace is suited to:

  • Does this team reach enough NP gauge to fire the needed Noble Phantasms on turns 1–3?
  • Which servant order (front line vs. back line, plugsuit swaps) makes the loop consistent?
  • Does the damage output clear the wave's HP, or does it fall short?
  • What happens if a card draw or an RNG-dependent effect goes badly?

Because it is a simulation, you can iterate on these quickly rather than discovering a failure mid-farm.

How It Relates to 3T Farming

3T farming means clearing a node in three turns, usually by firing AoE Noble Phantasms each turn. The hard part is rarely raw damage — it is the resource chain: starting NP, charge skills, and refund or battery effects that must line up across exactly three turns.

Laplace is aimed at exactly this: "help 3T farming." You set up the team and the battle, run the simulation, and observe whether the three-turn loop holds. If it does not, you adjust the composition or the skill order and run it again.

Getting Started

The site notes that JavaScript must be enabled to run the app, and it points to a document site for further reference. The practical starting sequence is:

  1. Enable JavaScript in your browser.
  2. Open chaldea.center and let the app load.
  3. Use the Laplace side of the tool to define a team and a battle scenario.
  4. Run the simulation and read the turn-by-turn result.
  5. Adjust the team or skill order and re-run until the loop is stable.

Common Friction Points

  • JavaScript required. Without it, the app will not run at all.
  • Simulation is not the game. A simulated result reflects the model's assumptions; verify anything critical in-game before relying on it for a long farming session.
  • Setup effort. A simulator rewards accurate input — servant levels, skill levels, and CE choices all affect the outcome, so a rough setup gives rough answers.

When to Use Laplace vs. Chaldeas

  • Use Chaldeas when the question is "what do I need to farm or build?"
  • Use Laplace when the question is "will this specific team clear this specific battle in three turns?"

If your goal is a reliable 3T farming loop, Laplace is the part of Chaldea designed for that job.

Is Chaldea Cross-Platform and How Do I Start Using It?

Yes. Chaldea (chaldea.center) is described as a cross-platform tool for Fate/Grand Order, so you can use it across different devices rather than being tied to one platform. To start, open the site in a browser with JavaScript enabled, wait for it to load, then use the linked document site for setup and usage instructions.

What Chaldea Is

Chaldea is a cross-platform tool for Fate/Grand Order made up of two parts:

  • Chaldeas — a planner for materials, servants, events, and similar planning tasks.
  • Laplace — a battle simulator for building teams and working on 3T farming.

So if your goal is planning resources or testing team compositions, both functions live inside the same tool.

Requirements Before You Start

The main practical requirement shown on the site is:

  • JavaScript must be enabled. The page states you need to enable JavaScript to run the app. If scripts are blocked, the tool will not load.

Because it is described as cross-platform, you can access it from a standard browser on your device. The site does not list specific operating systems, browsers, or installable apps in the available information, so treat "cross-platform" as browser-based access rather than a confirmed native app for every platform.

How to Start Using It

  1. Open chaldea.center in your browser.
  2. Make sure JavaScript is enabled for the site.
  3. Wait for the app to load — it shows a "Starting..." state during startup.
  4. Once loaded, follow the link to the Document Site for detailed instructions.

The document site is the intended place to learn the actual workflows, so use it rather than guessing at menus.

Common Stops

  • Blank or stuck page: almost always JavaScript being disabled or blocked. Enable it and reload.
  • Not sure what to do after loading: go to the document site linked from the app; that is where usage guidance lives.
  • Assuming a native app: the available information only confirms a cross-platform tool, not downloadable clients for each platform.

Quick Answer

Question Answer
Is it cross-platform? Yes, described as a cross-platform tool for Fate/GO
What does it include? Chaldeas (planner) and Laplace (battle simulator)
How do I start? Open chaldea.center with JavaScript enabled, wait for startup, then use the document site
Main blocker JavaScript disabled or blocked
What is Chaldea (chaldea.center)?

Chaldea is a cross-platform tool for Fate/Grand Order, made up of two parts: Chaldeas, a planner for materials, servants, and events, and Laplace, a battle simulator for team building and 3-turn farming. It runs as a web app, so you need JavaScript enabled in your browser to use it.

What Chaldea actually contains

The site describes itself as "Yet Another Planner & Battle Simulator for Fate/GO," and it splits that job into two named components:

Component Role What it helps with
Chaldeas Planner Planning materials, servants, events, and similar long-term goals
Laplace Battle simulator Building your team and working out 3T (three-turn) farming

So it is not a single-purpose calculator. The planner side is about deciding what to farm and when; the simulator side is about testing whether a team can clear a node in a set number of turns.

Who it is for

It is aimed at Fate/Grand Order players ("masters") who want to organize their account rather than play by feel. Two common situations:

  • You are saving for or building a servant and want to track which materials you still need and how events feed into that.
  • You want to check whether a farming team can reliably clear a node in three turns before committing resources to it.

If you only play casually and never plan ascensions or farm nodes on a schedule, the tool is probably more structure than you need.

How to access it

  1. Go to chaldea.center in a browser.
  2. Make sure JavaScript is enabled — the page explicitly states it is required to run the app, so a script-blocked browser will show nothing useful.
  3. Use the planner (Chaldeas) for materials, servants, and events, or the simulator (Laplace) for team and farming tests.
  4. The site links to a separate document site for further reference.

Things to know before relying on it

  • It is a third-party fan tool, not an official Fate/Grand Order product, so treat its data as community-maintained.
  • The page evidence does not state pricing, account requirements, or login limits, so do not assume it is free or that no account is needed — check the site itself if that matters to you.
  • Because it is a web app, behavior depends on your browser and JavaScript being active.

If your goal is simply to understand what the site is: it is a two-in-one FGO companion — a planner for what to build, and a simulator for how to farm it.

What Are Chaldeas and Laplace in Chaldea?

Chaldea (chaldea.center) is a cross-platform tool for Fate/Grand Order made up of two parts: Chaldeas, a planner for materials, servants, and events, and Laplace, a battle simulator for building teams and working out 3T farming. If you are trying to decide which part of the site to use, the short answer is: use Chaldeas for planning before you spend resources, and Laplace for testing how a team actually performs in a fight.

Chaldeas: the planner

Chaldeas is described as a planner that helps masters plan materials, servants, events, and so on. In practice, this is the part of Chaldea you open when your question is "what do I need, and when do I need it?" rather than "will this team clear the node?"

Typical planning tasks it is meant to cover:

  • Materials — tracking what you still need to farm or collect.
  • Servants — organizing which servants you are raising or intend to raise.
  • Events — planning around event schedules and their associated requirements.

The value here is foresight: you line up requirements ahead of time instead of discovering a shortage mid-event.

Laplace: the battle simulator

Laplace is described as a novel battle simulator. Its stated purposes are:

  • Building your team — testing compositions before committing in-game.
  • 3T farming — helping work out three-turn farming setups.

So Laplace answers a different question than Chaldeas: not "what do I need?" but "does this team work, and how fast?" Because it simulates battles, you can iterate on a team setup without spending in-game AP or resources on trial runs.

How the two fit together

Chaldeas Laplace
Role Planner Battle simulator
Answers What to plan and prepare How a team performs
Covers Materials, servants, events Team building, 3T farming
Use it when Preparing ahead of time Testing a composition

Both are components of the same cross-platform Chaldea tool, so they are complementary rather than alternatives: plan your targets in Chaldeas, then validate the team that will farm them in Laplace.

Practical notes

  • Chaldea is a cross-platform tool, so the same two modules are the ones to look for regardless of where you run it.
  • The site requires JavaScript enabled to run — if you see only a "You need to enable JavaScript to run this app" message, that is the cause, not a missing feature.
  • For setup details and usage instructions, the site points to its Document Site; that is the place to check for specifics beyond the module descriptions above.
What Can the Chaldeas Planner Help Fate/Grand Order Masters Plan?

Chaldeas is the planner half of Chaldea, a cross-platform tool for Fate/Grand Order. According to the site's own description, it helps masters plan materials, servants, events and so on — so if your question is "what can I actually track in it?", the short answer is: the long-term resource and roster decisions that are painful to hold in your head. It is a planning tool, not a gameplay automation tool, and the site does not state pricing or account requirements, so treat access details as something to confirm on the site itself.

The three planning areas the site names

The Chaldea homepage describes Chaldeas as "a planner to help masters planning materials, servants, events and so on." That gives three concrete buckets:

Planning area What it covers in practice
Materials The ascension, skill, and enhancement resources you need to gather
Servants Your roster and the servants you are building or targeting
Events Event-related planning, so limited-time content does not collide with your farming goals

The "and so on" matters: the description is deliberately open-ended, so the planner is positioned as a general-purpose planning surface rather than a single-purpose calculator.

Why this pairs with Laplace

Chaldea is composed of two parts. Chaldeas is the planner; Laplace is described as "a novel battle simulator to help building your team, help 3T farming." The split is useful to understand before you invest time in either:

  • Chaldeas answers "what do I need, and by when?" — materials, servants, events.
  • Laplace answers "does this team actually work?" — team building and 3-turn farming simulation.

If your goal is deciding what to farm next, Chaldeas is the relevant half. If your goal is testing whether a farming composition clears in three turns, that is Laplace's job.

What to expect when you open it

The page evidence shows the app requires JavaScript to run, and the visible state is a loading screen ("Starting...") with a link to a document site. Practical implications:

  1. It runs in the browser as an app, not as a static page — so a JavaScript-enabled browser is a prerequisite.
  2. There is a separate document site, which is where you should look for setup steps, terminology, and feature-level detail rather than guessing from the app alone.
  3. Cross-platform is stated in the description, so the same tool is intended to be usable across devices rather than locked to one platform.

Choosing whether it fits your needs

Chaldeas is worth using if you:

  • Are planning a servant build and want the material requirements in one place.
  • Want to coordinate event participation with your broader farming plan.
  • Want planning and battle simulation in the same ecosystem, since Laplace sits alongside it.

It is probably not what you want if you are looking for a damage calculator only, or for something that plays the game for you — the description frames it strictly as planning and simulation.

Where to go next

Start at chaldea.center, let the app load, and use the linked document site for the specifics of each planning area. Because the homepage description is high-level, the document site is the reliable place to confirm exactly which materials, servants, and events are supported and how they are entered.

Website Overview

The available information shows a mix of normal operation and configuration gaps. Depending on how the website is used, these gaps may affect secure access or the consistency of its public presentation.

Domain and Registration

Transfer-protection status is present, helping reduce the risk of unauthorized domain transfers. The domain has about 4 years of registration history; its current configuration provides more context than age alone. The registrar is Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn), a widely used domain service provider. The domain uses the common .center extension, which is not an independent safety signal.

DNS and Email

Nameservers are provided by Cloudflare, indicating managed DNS hosting. MX records point to the Alibaba Mail email service. No CNAME was found; the observed records resolve directly to addresses. SPF and DMARC are configured. DKIM status is unknown. TXT records include verification markers for Google. Such markers may also remain after a service stops being used.

TLS and Certificates

The public key uses EC with 256 bits. The server supplied a complete certificate chain. No organization name is present in the certificate; the available fields are consistent with domain validation. The certificate was issued within the Google Trust Services cloud or CDN ecosystem. The certificate's total validity is about 90 days, consistent with a short renewal cycle.

HTTP and Browser Security

The response lacks these common security headers: HSTS, CSP, Permissions-Policy, clickjacking protection. CORS permits any origin to read this response. This is common for public resources; sensitive responses need narrower handling. No X-Powered-By header was found, reducing one common source of backend fingerprinting information. The cf-ray response header indicates a CDN or caching proxy in the delivery path. No obvious internal addresses or debug information were found in the headers.

Technology Stack Analysis

The public page identifies Cloudflare without precise versions, leaving fewer clues for version-specific scanning.

Search and Social Sharing

No viewport meta tag was detected, which may affect mobile layout behavior. No homepage canonical URL was detected. If duplicate URLs exist, consolidation may be less explicit. The title has 7 characters, within a common display range. A meta description is present, with 60 characters. The observed directives allow indexing and link following.

Hosting and Email

DNSCloudflare
HostingCloudflare
EmailAlibaba Mail
Approximate IP geolocation (inferred; a CDN or proxy may differ from the origin server) Location unknown Inferred 104.21.31.86

Registration details

RDAP / WHOIS

RegistrarAlibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn)
Registered2021-10-17
Expires2034-10-17
Domain statusclient transfer prohibited
Nameserverselisabeth.ns.cloudflare.com、noel.ns.cloudflare.com
DNSSECunsigned

DNS records

DNS

TypeNameValueTTLPriority
Achaldea.center104.21.31.86300—
Achaldea.center172.67.175.129300—
AAAAchaldea.center2606:4700:3033::6815:1f56300—
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MXchaldea.centermx1.qiye.aliyun.com3005
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TXTchaldea.centergoogle-site-verification=ckCylHOjP4lNm8KUJ7uT-iv9IURrziUFStnao9wHJJg300—
TXTchaldea.centerv=spf1 include:spf.qiye.aliyun.com -all300—
DMARC_dmarc.chaldea.centerv=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; adkim=s; aspf=s300—

TLS and certificates

TLS / SSL

AssessmentNormal configuration
Supported protocolsTLSv1.2、TLSv1.3
Negotiated protocolTLSv1.3
Certificate subjectchaldea.center
IssuerGoogle Trust Services
Valid until2026-12-07T16:50 · Remaining when checked: 64 days
Verification detailsCertificate trust: Passed · Hostname match: Passed

HTTP response headers

HTTP

HeaderValue
content-typetext/html; charset=utf-8
cache-controlpublic, max-age=0, must-revalidate
servercloudflare
x-content-type-optionsnosniff
referrer-policystrict-origin-when-cross-origin
access-control-allow-origin*

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Meta descriptionChaldea - Yet Another Planner & Battle Simulator for Fate/GO
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LanguageEnglish (default)
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