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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
- Add the Servants you care about and set the upgrade targets (ascension stages, skill levels, append skills if applicable).
- Enter or import your current material stock.
- Read the shortfall, then plan farming or event shop purchases around the largest gaps.
- 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.
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