CrowdAnvil Companion - Windows x64 public test preview. Unsigned unless version.json says signed. Public preview distribution is authorized; stable release, independent security/signing review and clean-Windows acceptance remain open. Windows may display a warning. Do not disable or bypass Windows protections.
Extract the ZIP to a stable folder and open CrowdAnvil Companion.exe. Sign into https://twitch-crowdanvil.vercel.app with Twitch, confirm Steam player and installation, and approve the matching request in that account's Control Room. Install the configuration and restart CS2 once. Keep companion running during gameplay; Quit stops telemetry. Viewers need no download. Optional Windows sign-in startup is OFF by default.
Existing bridge on port 3217 is never stopped automatically. Stop it only between challenges before handoff. Preserve existing pairing and never share the private local configuration.
Uninstall: disable startup in companion, revoke hosted device, Quit, remove only gamestate_integration_crowdanvil.cfg, restart CS2, then remove companion/private config. Never remove unrelated game files.
