Sandbox isn't random clicking, you're simply to dumb to know where to look & go. Eternum you're also clicking, but aye. There's a literal Sandbox in Eternum. (EX: Search mansion for clues, Wolves / Vampires, and more.) Go off though (Called me dumb, yet Eternum is part Sandbox).
I want to know what your problem is with using your fingers just a tiny bit, you know what they're for right? You're such a wuss you can't click on an icon, and *boom* story pops up. You'd rather say "This game is a Sandbox, be warned." You really warned everyone buddy.
You're truly missing out on many Visual Novels that're Sandboxes. DM me if you want recommendations.