Install OSB
For several accounts, install OSB Manager on Windows or on a Mac. For one account, Tampermonkey in your browser is enough.
Windows
Download
Download the Windows zip of OSB Manager from GitHub, unzip it into a folder and start OsbManager.exe. It runs on 64-bit Windows 10 and 11.
WindowsSmartScreen warning
The build is unsigned, so Windows may say "Windows protected your PC". Press More info, then Run anyway.
WebView2
Game windows open in Microsoft Edge WebView2. Windows 11 already has it. On Windows 10, if it is missing, install the WebView2 Runtime from Microsoft's page.
Add accounts and OSB
Add an account with +. In the Scripts tab press Add from URL… and paste the OSB address; if the box holds another address, replace it. Then press Start or Start light.
OSB install address
https://raw.githubusercontent.com/corevider/osb/main/osb.user.jsIf you type the password in the Account tab, it is encrypted with DPAPI for your Windows user. Another user or another PC cannot decrypt it.
macOS
Download
Download the macOS zip of OSB Manager from GitHub, open it and move the OSB Manager app to Applications. It needs Apple Silicon and macOS 26 or later.
macOSFirst launch
The app is not notarised, so macOS blocks the first launch. Go to System Settings › Privacy & Security and press Open Anyway.
Add accounts and OSB
Add an account with +. In Scripts press Add from URL… and paste the OSB address; only https addresses are accepted. It takes effect when the game window reloads.
Keychain
If you save the login in Account, the password goes to the Keychain. After an update macOS may ask once: press Always Allow.
OSB install address
https://raw.githubusercontent.com/corevider/osb/main/osb.user.jsIf you press Deny, type the password in the Account tab again; that works too. The app does not update itself; you download new versions from GitHub.
Tampermonkey
Install the extension
Add Tampermonkey or Violentmonkey to your browser. In Safari, the free Userscripts app or Tampermonkey for Safari works (Safari 15.4 or later).
Turn off the old bot
If another OpenSRO bot is on, including the previous bot, turn it off: two bots cannot run in one tab. Your settings and share codes carry over to OSB.
Install OSB
Open the install link and press Install on the extension's page. OSB checks for updates on load and every 15 minutes.
osb.user.jsReload the game
The panel opens over the game. The Setup page shows what is missing; when everything is ready, press F8.
Safari is untested. Keep the game tab visible: Safari slows background tabs and the bot can stall. iPhone and iPad are not supported.
Requirements
OSB Manager, Windows
- 64-bit Windows 10 or 11
- Microsoft Edge WebView2 Runtime
OSB Manager, macOS
- macOS 26 or later
- Apple Silicon (no Intel Macs)
Tampermonkey path
- Tampermonkey or Violentmonkey
- Userscripts for Safari, Safari 15.4+