Windows Native App

Game Capture for VDO.Ninja

Publish games, app windows, or Spout2 VTuber avatars from Windows. Keep control simple: stream ID, room workflow, and OBS-ready view links, including transparent alpha video.

Download Installer (.exe) Download Portable (.exe) Download ZIP (.zip)

Latest release page: github.com/steveseguin/game-capture/releases/latest

Game Capture app window showing window selection and go live controls — Current Windows app interface (native Qt build)

How It Works

Creator sets stream ID and shares a link with the guest.
Guest opens Game Capture and selects a game, app window, or Spout2 sender.
OBS uses view/scene links to pull the feed.
Room workflows support role-based quality control.

Why This App

Window audio capture without virtual audio cables.
Hardware-accelerated encoding for smoother performance.
Dual-stream quality model: HQ + LQ routing when needed.
Multiple viewers from one HD encode workflow.
No Electron runtime, low memory usage, native Qt app.
Simple alternative to OBS for guest-side game feed publishing.
Direct Spout2 input for VTuber avatars and transparent graphics.
Built for VDO.Ninja compatibility and link workflows.

Spout2 & VTuber Sources

Receive local Spout2 video from VTube Studio, Warudo, VSeeFace, VNyan, and similar Windows apps.
Enable Spout output in the avatar app, choose Spout2 (avatar apps), and select its sender.
Spout2 carries video only; choose an output mix or microphone separately if the feed needs audio.
Use VP9 with the OBS alpha workflow for true transparency, or chroma background with H.264/NVENC.
If the sender is black, set Game Capture and the sender app to the same GPU in Windows Graphics settings.

Open the Game Capture and Spout2 setup guide.

Alpha Workflow

Use VP9 (OBS Alpha Preview) with alpha enabled for transparent OBS playback.
VP9 alpha requires the bundled LGPL FFmpeg/libvpx VP9 encoder and is CPU-encoded.
Transparent OBS playback requires the VDO.Ninja OBS plugin with Use Native Receiver (Experimental) enabled.
OBS Browser Sources and normal browser viewers receive standard color video instead of composited transparency.
Compatible OBS VDO.Ninja native receivers upgrade that stream to transparency automatically.
For hardware encoding, use Alpha Background → Chroma background and key the selected color in the receiver.
VP9 alpha is CPU-heavy; try 1080p30 or 720p60 first if 1080p60 drops frames.
Leave alpha off when you want the widest viewer compatibility.

Current Scope

Windows only right now.
No auth guard for role claims (production tool model).
Limit max connections to protect publisher performance.
Public roadmap and test plans live in the GitHub repo.