Yes and no. Anyone can launch all social games. But only workspace admins can schedule games (e.g. Predictor Games, Find the Word) to workspace channels.
Once you have added Guul to your workspace, use commands to launch games on your workspace channels, direct messages, or just go to Games Arena on the Guul web dashboard. Select your favorite game and invite your colleagues to join the room or schedule company-wide games like find the word at a specific time.