Hey! Try moving around with WASD and clicking to interact - it's not a splash screen, by that point, you're 'in' the game world, so to speak. It's a little confusing!
Strange... I've clicked basically everywhere on that screen, and nothing! I've re-downloaded several times and always the same issue.
You start far away from the Lynch cube. Try walking towards him until the UI displays his name. If that doesn't work, let us know and we'll look into it!