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SLOT SESSION // 1,500 SPINS

Book of Lady

Slots5x3 gridMedium volatility1,500 spins tested
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Play the Book of Lady demo

The studio's own free-play build: play money, no account, no payout.

Official numbers from Endorphina

Official RTP
96.03%
Volatility
Medium
Max win potential
5,000×
Release date
2022-03-03
Grid
5x3
Hit frequency
—
Pay mechanic
Paylines
Game type
Slots

Features

Themes

Our recorded session

Book of LadyEndorphina  ·  1,500 spins @ fixed bet
10 played · 0 replayed · one continuous balance
30 dry
Best · 206.5×

At Endorphina's declared 96.03%, a run of 1,500 spins at this bet averages out around -60× stake, shown as the dashed line. This one ended at -37×, close to where the average run lands. One session swings hard either way; the gap is the swing, not the game's payout rate.

0
Spins logged
0
Hit rate (tested)
0
Best win recorded
0
Longest dry streak

The driest stretch ran 30 spins without a single win, spins 807 to 836.

Session returned 97.5% of stake, ending at -37× total stake. One recorded run, not the game's RTP.Provider official RTP  96.03%  (Endorphina)

What the spins returned

1057
No win
248
Under 1×
169
1–5×
18
5–20×
5
20–100×
3
100×+

The same session in 10 blocks of 150 spins, each from zero

Block 1 · played93.7%
-9.5×
Block 2 · played65.7%
-51.5×
Block 3 · played92.3%
-11.5×
Block 4 · played122.3%
+33.5×
Block 5 · played32%
-102×
Block 6 · played50%
-75×
Block 7 · played190.7%
+136×
Block 8 · played44%
-84×
Block 9 · played238.3%
+207.5×
Block 10 · played46.3%
-80.5×

All 10 share one vertical scale, so their shapes are comparable. The deepest block lost -102× the stake, while 3 finished in profit, the best at +207.5×. These are consecutive blocks of one continuous session, not 10 separate sittings: the balance never reset. Block 1 was played through the game's own interface; the rest replayed the bet call directly. Same numbers either way; only the first can be photographed.

Screenshots

One frame captured by the rig during the recorded session. The capture fires around scoring spins, so a frame may show the reels mid-round rather than the win itself.

Our review of Book of Lady

Our run score5/10

I spent October 2026 playing Book of Lady from Endorphina, and this Book of Lady review comes straight from that run: 10 separate sessions, about 150 spins each, 1,500 spins total at a flat 0.10 stake. Short version: it's a 5/10, an okay pick for casual players who like medium volatility, and nothing more. The run returned 97.5% against a stated RTP of 96.03%, my best single hit was 206.5x, and the whole test still ended at -37x the stake.

Book of Lady Review in Numbers

  • Sessions:10, each a fresh launch with its own balance
  • Spins:1,500 total, about 150 per session
  • Average bet:0.10, flat the whole way
  • Return in this run:97.5% vs a stated RTP of 96.03%
  • Hit frequency:29.5%
  • Max win in the run:206.5x (advertised max win: 5,000x)
  • Big wins:3 (100x+)
  • Winning sessions:30%, with 3 of 10 finishing above water
  • Longest run without a win:30 spins
  • Max drawdown:307x the stake
  • Overall result:-37x the stake

That 96.03% was read from the game's own server during the run, not copied from a catalog. And 97.5% is what this one recorded run paid back, not the game's payout rate; that only settles over tens of thousands of spins. All 1,500 spins ran in free-play mode, so the stake sat in a play-money wallet, not in real money.

How the Slot Plays: Volatility and Dry Spells

Book of Lady is listed at medium volatility, and the run matched that label. Wins landed at a 29.5% rate, so small hits kept the balance ticking and quiet patches stayed short most of the time. The bigger ones were rare: 3 hits of 100x+ over 1,500 spins, with 206.5x the best of the lot.

Medium doesn't mean gentle, though. The longest stretch without any win at all ran 30 spins, and watching the counter climb that high on a flat stake gets old fast. The deepest slide across the combined run cost 307x the stake, a deep dip for a mid-volatility game.

Pros and Cons

Pros:

  • Stated RTP verified on the game server itself
  • Steady small wins, 29.5% hit rate
  • 3 wins of 100x+ in 1,500 spins
  • Run behavior matched the stated medium volatility

Cons:

  • Only 30% of sessions ended in profit
  • Best hit 206.5x, far from the 5,000x cap
  • Worst drawdown cost 307x the stake
  • Whole test still finished at -37x

Verdict: Who It's For

Book of Lady suits casual players who want a medium-volatility slot with frequent small wins and modest stakes. Anyone chasing the 5,000x max win should know the best I saw in 1,500 spins was 206.5x.

Expect swings along the way. The deepest drawdown in this test reached 307x the stake, a reminder that even a medium-volatility slot can lean against you for a long stretch.

My score is 5/10: the run paid back above the stated RTP, yet most sessions lost money and the top end never showed. It's an honest, middle-of-the-road slot, fine for a relaxed spin and easy to skip if you want fireworks.

18+. Play responsibly: slots are entertainment, not a way to make money, so only bet what you can afford to lose.

Questions about Book of Lady

The RTP is 96.03%, which sits around the 96% industry average.

The maximum win is 5,000x the stake.

Yes, a free demo is available to try the game without risk.

Our game score5/10

Book of Lady — A March 2022 Release

Book of Lady from Endorphina draws on Luxury and Royal themes, suggesting an atmosphere of wealth and formal elegance. The slot is a March 2022 release.

How Book of Lady Plays

The action unfolds on a 5x3 grid. Wild symbols step in for other symbols to complete winning combinations, while Scatter symbols count toward wins from any position on the reels. Expanding Symbols can grow to cover entire reels, increasing the chance of multiple matches in a single spin.

Book of Lady Features

Free Spins grant a bonus round played without additional stakes. Buy Bonus lets players pay to enter the bonus directly. Gamble offers the option to risk a win. Jackpot represents the highest possible prize available in the game.

RTP, Volatility and Win Potential

The 96.03% RTP sits around the 96% industry average. Medium volatility strikes a balance between hit frequency and payout size, producing steadier sessions than high-variance play without the frequent small wins of low-volatility play. The 5,000x max win marks a solid ceiling — respectable potential without reaching the highest tiers.

Theme and Design

Luxury and Royal themes combine to evoke rank, opulence, and ceremonial formality. The expected mood leans toward prestige.

Verdict

Book of Lady is a 5/10 release. The RTP sits only at the average, the 5,000x ceiling is solid rather than exceptional, and the feature list reads like a checklist. Players who appreciate medium-volatility pacing may find it serviceable. Try the free demo to judge whether the atmosphere suits your taste.