About Great Hall Guide

01Why a whole site for one slot?

Thunderstruck II hides four different free-spins rounds behind a progress system most players never fully understand. Seeing each feature happen is the fastest way to learn, so every rule here comes with something to press: scenes, a playable slot and a bonus wheel.

02What you'll find here

A review with a free demo, four playable rule scenes, a playable 243-ways slot and a bonus wheel.
Guides to the rules, the free spins, the paytable, planning a session and fixing the demo.
Similar games, a head-to-head comparison and a page on Games Global.

03Where the facts come from

Rules and figures are checked against the game's paytable and help screens, Games Global's published details and long demo sessions. Where casinos run other versions, we say so.

04How the site is funded

Some links lead to licensed casinos and may earn us a commission. That doesn't change what we write, and the demo here is always free.

05What this site is not

Not a casino — no bets, no deposits, no accounts.
Not Games Global — we're independent and not endorsed by the studio.
Not a promise of winnings — every slot keeps a house edge.

06Who's behind it

Every page is written by Victoria Holm. Spotted a mistake? Tell us.