❓ Should I build a new company or upgrade AE?
❓ Which company should I actually work in today?
❓ Should I buy raw materials, or concrete and steel too? How much?
❓ When will I actually afford my next build?
If you've asked yourself any of these questions and stared at a spreadsheet or just guessed, then this tool is for you.
I built a free browser tool called the Warera Production Advisor that answers all of these, live, based on your actual profile data.
🔗 https://warera-advisor.vercel.app/

The advisor analyzes your profile and tells you exactly:
Which company to work in
What resources to buy
Whether to sell surplus resources
How long until your next company or AE upgrade
This tool is built exclusively for ECO players focused on building companies, hitting the 12-company limit, and maximizing AE levels. It will not give useful advice if you are:
A soldier build - your company limit, gold priorities, and production goals are fundamentally different
Producing non-chain resources (weapons, food, fish, etc.) - the tool is built around the iron and limestone => steel and concrete production chains only
Not interested in maximising expansion speed - if you're happy logging in casually, this tool will feel demanding
You already have 12 companies all at AE7 - the growth phase is complete. At that point you're better served by tools that optimise for daily profitability rather than expansion speed, like, for example, Arcane Era or War Era Stats.
If none of these apply to you, this tool was made for you.
The advisor makes several assumptions. Deviating from them will reduce accuracy:
You complete 7/10 of your daily and weekly missions. Mission income is a significant part of the gold calculations. Skipping missions means the tool overestimates your income.
You sell cases rather than open them. Case value is included in mission income calculations as market sell price. If you open cases for items, your effective income is different.
Your companies produce only iron, steel, limestone, or concrete. Companies producing other resources (bullets, bread, etc.) are flagged with a warning and excluded from all calculations.
You are not hiring workers. Hired worker efficiency depends on too many external variables (their PP, your wage, region) and is generally not worth it. The tool focuses on your own production sessions.
You are fully committed to growing your production empire. The tool recommends spending almost all surplus income on either concrete (to build faster) or steel (to upgrade AE). If you want to hold gold for other purposes, treat its recommendations as a guide rather than gospel.
Every new company and every AE level permanently increases your future production.
Because of that, the advisor optimizes for reaching new companies and AE upgrades as quickly as possible rather than maximizing today's gold profit, like many other tools do.
The goal is not to be rich today. The goal is to be a production powerhouse in 3 months.
Step 1: Fetch Your Profile

Type your Warera username (or paste your profile URL) and hit Fetch. The tool calls the live Warera API and automatically loads:
Your entrepreneurship and energy stats (determines sessions/day and PP)
All your companies with their types, AE levels, and live regional bonuses
Your current gold balance
Live market prices for all 4 resources
The only things you need to enter manually are your concrete stock and steel stock (inventory quantities), since these aren't accessible from the API.
Step 2: Input your inventory stock and wage after-tax

While the gold balance will be auto-fetched from your profile, you will still need to input the following:
Concrete stock: affects how far along you are toward your next build
Steel stock: affects how far along you are toward your next AE upgrade
Wage after-tax: defaults to 0.124. Find your actual after-tax wage in your company's employment tab in-game and update it if different
Filling these out will make sure the production advice is as accurate as possible.
Step 3: Read the TL;DR box

The "Do This Now" box is the TL;DR of the entire tool. Every time you open the app, this tells you exactly what to do:
Which company type to work your manual sessions in (from your entrepreneurship)
Which raw materials to buy from the market (and how much they cost)
Whether to sell surplus iron/limestone
An optional line telling you whether buying extra concrete/steel from the market with your daily net income would speed up your goals, and by exactly how much
If your gold balance is high enough to act immediately, ✓ checkmark items appear telling you to buy concrete or steel right now to skip days of waiting
Tracking your goals

The two goal cards show your current progress toward the two things that matter:
Next Build shows how many days until you can build your next company, based on your concrete production rate plus what you can buy with your daily surplus income. The progress bar fills as your concrete stockpile grows.
AE Upgrades shows the time until your next AE upgrade and which company to upgrade first (always the one with the highest production bonus, since it gives the best return per steel spent).
Both estimates are combined estimates; meaning they factor in both production rate and market buying with your surplus income.
The spending plan

The Spending Plan tells you exactly what to do with your gold balance right now:
Do now: things you can afford today that would skip days of waiting
Saving toward: your next goals ranked by priority
During the building phase (under 12 companies), your surplus income is always allocated to buying extra concrete, not steel. The AE upgrade line will tell you if it's better to wait and build first, even if you technically have enough gold for an upgrade.
Both the build and AE lines are expandable (click the arrow) to show a full breakdown of all options sorted by gold-per-PP efficiency.
Your companies

The Your Companies section shows all your loaded companies.
The Add next company button at the bottom recommends which type to build next, using a multi-step process:
Supply chain emergency check - if you're severely short on iron (to feed steel companies) or limestone (to feed concrete), it fixes that first.
Income check - if your net income drops too low to sustain current production costs, it addresses the deficit before anything else.
Ratio target - it builds toward a 4 iron / 4 steel / 2 limestone / 2 concrete composition at 12 companies, prioritising concrete (speeds up future builds), then steel (AE upgrade material), while deferring iron and limestone when you can afford to buy them from the market.
During building phase (companies < 12), iron and limestone are treated as inputs you buy, not companies you prioritise. The tool only recommends building them when buying becomes too expensive.
What Happens at 12 Companies

Once you hit 12 companies, the entire focus shifts. There is no more building to do, so:
Limestone and concrete companies become useless - they only existed to help build. The app flags them with warnings and tells you exactly which to convert and to what type.
Work type switches from Concrete to Steel - all your sessions now go toward AE upgrade material
The spending plan focuses entirely on steel - your surplus income buys extra steel/day to speed up AE upgrades
The ratio between iron and steel doesn't matter much - due to market price equilibrium, any combination produces equivalent steel output per day when you factor in buying/selling. The tool will suggest converting to a roughly even split for simplicity.
What Makes This Different From Other Production Tools
Some community production tools have some of this app's features but lack others. Some examples:
Most tools base their build/upgrade recommendations on what is the most profitable, not what makes you expand your empire the fastest. For example, one tool might recommend you to produce something like fish instead of one of the four main resources (iron/limestone/steel/concrete), because it perhaps gives you 0.02 more gold per PP. This would be fine, assuming you have already built your desired number of companies and upgraded their AE levels - chances are you're not there yet. If you are, those tools are the better choice over this one.
Most tools don't have any time estimates regarding when you can afford your next build or upgrade.
Most tools don't factor in how your daily income interacts with the market. For example, whether spending your surplus gold on concrete or steel today would let you skip several days of waiting.
Most tools don't have a TL;DR, giving you an easy overview of exactly what you need to do to maximise growth.
If you want to plan your level progression and XP targets, I also made a level calculator:
🔗 https://wareracalc.netlify.app/
This project took a lot longer than expected to build and test, and I probably should’ve spent a bit more time preparing for my exams instead.
If you find bugs, edge cases, or have ideas for improvements, I'd love to hear them.
Good luck building your empire.
— MBF