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Install SinisterClient
SinisterClient is a Windows desktop application. You receive a personal installer or download link after /get-client or /redeem-key — not a generic public binary.
Overview: SinisterClient overview
Download
- Redeem a license with
/redeem-keyor run/get-clientif you already have an active sub. - Wait for the build to reach Ready in Discord.
- Open the download link:
{your Sinister host}/download/SCB-…?uid=your_discord_id
See Download your build for build states and HWID rules.
Install steps
- Run the installer as Administrator when prompted (required for the Roblox proxy).
- Complete first launch setup:
- Discord user ID
- Build key (
SCB-…) - Roblox cookie (or follow the link to the cookie portal)
- Confirm the app shows signed in / connected before opening Roblox.
After install
| Rule | Why |
|---|---|
| Start SinisterClient before Roblox | Proxy and intercept capture |
| Keep the app running while you play | Heartbeat, bridge, resolve pipeline |
One PC per SCB-* key | HWID binding and leak detection |
The client opens a localhost HTTP bridge on ports 47711 through 47721. Custom executor scripts use that bridge — see Lua bridge.
Updates
When a new client version ships, your build may rebuild automatically. Run /get-client again for an updated download. Linked cookies usually carry over.
Security toggle changes (/request-security-change) also trigger a repackage — wait for Ready before downloading.
VM / debugger detection
Some plans enable extra checks on your personal build. If the client refuses to start, read the on-screen message. You may need to disable Hyper-V, debuggers, remote desktop tools, or VPNs depending on your tier and build settings.