IS7 Book of King Arthur: Free Spins & Expanding Symbols
Book of King Arthur places expanding-symbol free spins in an Arthurian setting. This guide identifies the game and explains what to look for when its feature begins.

The king on the game card
The crowned, bearded king on IS7’s Book of King Arthur artwork matches the Just For The Win title. Its setting draws on Arthur and Avalon. The feature description centres on free spins and expanding symbols during those free spins.
Book games from different studios often share visual ideas. A king, a magical book or a similar title is not enough to establish that they use the same paytable. Check the complete name and studio in the game information.
What expands during free spins?
An expanding-symbol feature changes the symbol coverage on the reels during the free-spin sequence. Follow the symbol identified by the game and the positions it fills before reading the resulting win.
Expansion describes what happens to the symbol; it does not automatically mean the symbol becomes a wild or that every expanded screen pays. Those details depend on the game’s expansion and combination rules, shown in the active help panel.
Triggered features and Feature Buy
The studio lists a Buy Feature option for Book of King Arthur. If that option is offered in your version, it is a separately priced way to enter a feature. It should be distinguished from a feature triggered by the outcome of an ordinary spin.
Read the displayed purchase cost before selecting anything. A button offering access to free spins is not necessarily a free action, and paying for feature entry does not determine its final return. Availability and prices must be checked inside the actual game.
Before the first feature spin
- Read which symbol or symbols the feature identifies for expansion.
- Check the awarded spin count and any retrigger conditions.
- Confirm how expanded symbols are assessed by the paytable.
- Keep the feature’s win total separate from the cost of entering it.
Can I use the Book of Gold guide instead?
Book of Gold covers a different JILI title with scarab-book artwork. It shares some feature vocabulary, but that does not make its triggers or symbol rules applicable to King Arthur. Keep the matching guide open alongside the title you are reading about.
Does a larger expanded symbol mean a larger guaranteed return?
Its size explains the visual effect, not a guaranteed result. An award still needs to qualify under the rules. For the general meanings of expansion, wild and free spins, consult the IS7 game glossary.