Games Global · 2018 · expanding symbol / lock n spin
Book of Oz on a phone
Upright works. 3.1 s to playable over cellular, and big buttons once it is there.
The phone check
Spin and bet sit where a thumb already is. One hand, no stretching. The demo pulls about 13 MB before the first tap registers, which on a poor bar is where the 3.1 s goes. Getting money back out is a separate count and we keep it at cashout.
This title ships in more than one return build
Games Global licenses 2 configurations of Book of Oz. The spread from top to bottom is 2.18 points, which is about C$22 in expected cost per C$1,000 staked. Same reels, same features, different maths.
| Configuration | Return | House edge | Cost per C$1,000 vs the top build |
|---|---|---|---|
| Highest build the studio licenses | 96.31% | 3.69% | baseline |
| Lowest build | 94.13% | 5.87% | C$22 |
How to see which one you are on, in three taps
- Open the demo and tap the burger or the ⓘ in the game's own toolbar, not the casino's.
- Scroll the info panel to the bottom. The return figure is printed in the rules footer.
- Compare it to the table above. If it is not the top row, that is the build you are being served.
123 of the 306 titles on this board carry more than one build, so this is worth doing once per game rather than once ever.
Where it sits on the board
Ranked 126 of 306 here, and none of that ranking is about the game. It is about the handset. The board median is 2.1 s, so this one costs you an extra 1 s a session.
Across the 13 Games Global titles here the median is 1.6 s and 10 render upright.
What the game is
Games Global shipped it in 2018 on a 5x3, 10 lines board running expanding symbol / lock n spin. Wizard-of-Oz book slot with an expanding special symbol in free spins and a Lock 'N Spin re-spin twist on any spin.
High volatility, so treat the demo as a look at the rhythm and not at the maths. Minimum stake is C$0.10, which is about 200 spins on a twenty. Ceiling is 5,000x and it is not going to happen to you.
The rest of it
| Studio | Games Global |
|---|---|
| Released | 2018 |
| Board | 5x3, 10 lines |
| Mechanic | expanding symbol / lock n spin |
| Volatility | High |
| Top licensed return | 96.31% |
| House edge on that build | 3.69% |
| Max win | 5,000x |
| Minimum stake | C$0.10 |
| Spins on twenty dollars | about 200 |
| Free demo | yes, no account needed |
| Tags | book-slot, free-spins, respins |
Done with the demo?
Every app we have taken apart is at app teardowns, ranked on install size, crashes and how many taps stand between a balance and a submitted withdrawal. The full list of sites that ship one is at sites.
Play for real in the app →