Setup
Set up once.
Then press Start.
A few minutes the first time. After that Icarus runs on its own, career after career, for as long as you leave it on.
Windows 10 or 11
Icarus is one 64-bit Windows program. Nothing else to install: no Python, no Node.
The game on Steam
A Steam account that owns Umamusume: Pretty Derby (Global). Icarus signs in with it once.
Each account's Data Link
The Trainer ID and Data Link password of every game account you want Icarus to run.
Windows
Six steps to your first banked career.
Put Icarus.exe in a folder of its own
Not Downloads: Icarus keeps your settings, sign-in and run history beside itself.
Double-click it
The first time, Windows may show Windows protected your PC: choose More info, then Run anyway. The dashboard opens in your browser at
127.0.0.1:1717.Sign in with Steam, once
With the Steam account that owns the game. Enter the Steam Guard code if asked. The game does not need to be open, and Icarus keeps an encrypted session so every later sign-in is unattended.
Add your accounts
Under Accounts: a Trainer ID and Data Link password for each, one at a time or pasted as a list, one per line.
Pick the deck, trainee, parents and a preset
Open the account's Training tab. Choose the deck, friend card, trainee and parents, the scenario and Algorithmic or Independent Training, then a preset, or press Generate to build one for your trainee.
Press Start
Watch careers bank and fan totals climb. Closing the browser tab changes nothing: open
127.0.0.1:1717again any time. Closing Icarus's console window stops it.
While it runs
An empty picker on an account just means Icarus has not visited it yet: open the account and press Visit now.
Updates
Icarus checks for new versions and installs a signed update from the dashboard. Roll back returns to the version you ran before. Your accounts and settings are never touched.
Your data
Settings, sign-in and run history live in folders next to Icarus.exe. Back up that folder and you have backed up everything.
Stuck on a step?
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