Your private run journal

Keep the context behind every finish.

Companion connects completed Batomon runs to a private account. Review round results, unit contributions, and gold decisions instead of relying on memory.

Windows x64 · 2.0 MiB · Steam build 26170127

Account availability is checked when you open sign-in. Your results stay private to your account.

Batomon Showdown shop with units and offers
Game screenshot. Your private records are not shown in this image.
Explore the synthetic run example →

Review a decision, not just a score

Where did the run change?
Compare round outcomes and the recorded board before a battle.
Which units contributed?
Inspect recorded damage, healing, shields, and casts. Missing observations stay unknown.
Where did the gold go?
Review purchases, rerolls, sales, and available gold observations.

These observations do not isolate the cause of a win or provide guaranteed odds. Current reference values can differ from a recorded run's patch.

Features in Companion 0.3.20

Open Batomon.com Companion at the title menu. The Battle controls start off. Turn on only the ones you want. None of them changes the battle result.

  • 5x fast-forward. Speeds local playback while the game's own fast-forward button is on.
  • Skip animations. Shortens supported presentation waits after the game commits the result, including the VS intro. Start effects and tutorials still play.
  • Auto-confirm. Confirms the saved result for you. A manual click, including fast-forward, cancels it for that battle.
  • Auto-open gifts. Opens a present that is ready. You still choose the rewards and any Take All purchase.
  • Fast prebattle. Shortens the local black screen, VS screen, and start-effect waits after the result commit. The game's own calculation, trail flights, and tutorials stay at their normal pace.
  • Battle prediction. Shows the game's own calculated result after that calculation finishes, while the current animation continues. It is not odds, and it does not predict an unknown opponent or a future match. Press F8 or right-stick click to open the panel.
  • Private run journal. After you connect and finish a new run, review rounds, units, and gold on this site. The Battle controls and prediction work without an account.

These controls run on your computer. They add no upload and no network request. Your choices stay on that computer.

Windows installer

Install Companion without changing your Steam game.

Release 0.3.20 supports Windows x64 and Steam build 26170127 only. Setup checks that exact build, then creates a separate copy for Companion.

  1. Keep Steam build 26170127 installed. Install Batomon Showdown on Steam first. Update the game in Steam, then run setup.
  2. Download and open setup. Double-click the versioned 2.0 MiB Windows setup (2,118,477 bytes) from Batomon.com.
  3. Choose Install. Setup finds one supported Steam library, checks it, and uses the fixed separate Companion destination. If Steam has more than one matching copy or setup cannot find it, use Browse.
  4. Launch Companion. Use the finish-page launch action or the new Desktop and Start Menu shortcuts. Then connect your account and play normally.
How the separate copy protects your Steam files

Setup accepts only the exact supported build. It copies your own game folder to the Companion destination, applies a small checked change there, and checks the finished copy before it becomes active. Setup never changes, renames, or deletes the original Steam folder. The download does not contain the full game, a full PCK, game DLLs, or the PCK encryption key. A wrong game build, a damaged setup, a linked path, or a running Companion copy stops setup.

Connect the game to your dashboard

Browser sign-in only opens this dashboard. It does not install Companion or link your game. Use the same email in the browser and in the separate Companion game copy.

  1. Install the separate Companion copy

    Install Batomon Showdown through Steam first. Windows Companion 0.3.20 requires Steam build 26170127. Update the game in Steam, then run Companion setup. Choose Install, or Browse if setup cannot find your Steam library.

    Setup creates a separate copy. It leaves the original Steam game unchanged. The Windows installer is unsigned; compare it with the published SHA-256 checksum before you open it. SHA-256 checks file integrity, not publisher identity. A checksum does not replace a code signature.

    Download Companion 0.3.20 for Windows
  2. Launch Batomon.com Companion

    Keep Steam open. Use the Batomon.com Companion Desktop or Start Menu shortcut, or the setup action Launch the separate Companion copy.

    Steam's Play button launches the original game, not this separate copy. The original game does not record Companion runs.

  3. Connect from the title menu

    At the game's title screen, select Batomon.com Companion. Enter the same email you use for this dashboard. Select Send code. Enter the 6-digit code requested by that game panel, then select Connect.

    Review the Terms of Use and Privacy Policy first. Connect only if you consent to match uploads. A browser login code is not a substitute for this in-game connection.

  4. Check Match uploads

    After Connect, reopen the panel. Check Connected as and its masked email. Under Match uploads, keep Enabled on if you want to share your runs with your private dashboard. You can turn uploads off at any time.

  5. Finish a new run in this copy

    Start and finish a run while connected, with uploads enabled. A battle is not a complete run. Finish with a win, a loss, or the game's abandon action. Closing the game mid-run does not finish an upload. This connection does not import your old Steam run history.

  6. Check the upload, then refresh

    Reopen the game panel and check Pending uploads and Last upload. Keep Companion open and online while uploads remain pending. The website must process an upload before it shows a run.

    Recheck connection and runs

    This action reloads the dashboard once. It does not start an upload or enable background refresh.

If the connection or runs do not appear

No Companion button in the title menu
Check which shortcut you launched. Use the separate Companion copy, not Steam's Play button. Verify the supported build and installer version.
No game device linked
No game link is recorded for this website account. Check the email and complete Connect in the game. This message alone does not establish an upload or server failure.
Connected, but no runs
Check Match uploads and finish a new run. Compare the game's Last upload with the dashboard. A recent device contact does not prove that a run finished or completed processing.
Code not accepted
Request a new code from the game panel. Use that code there, not the browser login code. Check the email you entered.
Connection expired
Select Sign out in the game panel, then connect again with the same email. Browser sign-in does not renew the game connection.
Offline or pending uploads
The Offline message can indicate a network or upload error; it does not identify the cause. Check connectivity and leave Companion open for automatic retries. Do not delete local files to clear the queue.
Wrong build or installer error
Check Steam build 26170127 and Companion 0.3.20. Close the game before setup. Do not bypass a build or checksum error.

Local battle prediction

This installer includes an optional game-calculated result preview.

The game-calculated result appears only after the native computation finishes, while the current battle animation continues. It is the game's result, not odds or an independent trial forecast. It does not predict an unknown opponent or a future match.

Independent trials are also available for audited simple setups. Current replay support needs Chemist, Lady, or no trainer, with no trinkets. Only stat-only Batomon and selected self-buff abilities qualify. Trials use separate seeds and show completed trial counts, not calibrated odds. Other setups can still show the game-calculated result.

In a compatible release, open Batomon.com Companion at the title menu. Select Prediction, then turn on Battle prediction. Start a battle. Press F8 or right-stick click to open the panel. Use Close, collapse, Move, or Off as needed. This feature works without login or Match uploads. It processes battle data locally and adds no network requests or uploads. It does not choose actions, change outcomes, or provide a guarantee.

Optional local Battle controls

Open Batomon.com Companion at the title menu. Select Battle. All five controls start Off. Turn each control on separately.

  • 5x fast-forward: Speeds local playback while the native fast-forward button is on.
  • Skip animations: Shortens supported presentation waits after the native result commit. It also shortens the VS intro. Start effects and tutorials still run.
  • Auto-confirm: Waits for the saved result. Manual input, including a fast-forward click, cancels it for that battle.
  • Auto-open gifts: Opens a ready present only. You choose rewards and any Take All purchase.
  • Fast prebattle: Shortens local black, VS, and start-effect waits after the native result commit. Native computation, trail flights, and tutorials stay unchanged.

These controls need no login or Match uploads. They add no network requests or upload fields. Local preferences persist. The controls do not choose rewards or change battle outcomes.

Optional and private. Public guides, reference pages, and tools need no account. Read the privacy policy, terms, and data separation rules.