Important: update Visual C++ Redistributable here if the plugin doesn't appear in the Tools menu.

Now you can make RewardsTheater play a random video when a reward is redeemed.
You can use a VLC Video Source with several videos in the playlist. Then RewardsTheater will play a random video from this playlist every time.

If you use Linux and Flatpak, you can install with

flatpak install flathub com.obsproject.Studio.Plugin.RewardsTheater