Sorry for not getting back sooner. Are you sure you aren't using "Draft" mode? That mode is not designed for distributing your game to other people. If you are using Restricted mode then people can access the game by:
- Owning it with a "download key" (which you can manually generate, or automatically through our Kickstarter or Patreon integration)
- Setting a password on the page. Note that you'll also need to remove the price from the page if you set one to let people download the game for free with a password.