Book of Conquistador: Free Spins, Symbols, and Rules
Book of Conquistador is a classic video slot from Endorphina set during the era of the Conquista: 5 reels, 3 rows, and 10 paylines. The game revolves around a book that acts as both a wild and a scatter symbol and triggers free spins with expanding symbols.
The mechanics are easy to understand, even for beginners: you select your total bet and collect combinations of matching symbols from left to right. The main feature here is that you choose the expanding symbol yourself by opening one of the books at the start of the bonus round.
Play Book of Conquistador OnlineExclusive Book of Conquistador Bonus for New Players
The Storyline and Atmosphere in the Book of Conquistador Slot
Endorphina’s Book of Conquistador transports players to the era of the Conquista: the reels are set within a golden frame against the backdrop of an ancient city, and the screen features a bearded Spanish treasure hunter alongside warriors from an indigenous civilization. The main symbol—an ancient book—is responsible for both payouts and triggering the bonus round.
The visual elements are drawn from the New World: a stepped pyramid in the jungle, a golden ritual mask, a necklace with red accents, a handful of coins, a map with a compass, and an emerald ring. The design has a distinct “museum” feel: the symbols look like exhibits, and there are no story-driven interludes between spins—all attention is focused on the game grid.
The game’s rhythm follows the same logic. The base game delivers frequent small wins with lower-value symbols, while significant payouts come from free spins. However, Book of Conquistador differs from most “book” slots in one key detail: the expanding symbol is not assigned automatically but is chosen by the player.
Quick Overview of Book of Conquistador
Book of Conquistador is a treasure-hunting-themed video slot with 5 reels and 3 rows of symbols. Below is a summary of the key parameters to help you understand the game’s format before your first spin.
| Parameter | Value |
|---|---|
| Provider | Endorphina |
| Theme | The Age of the Conquista, Ancient Civilizations, Treasure Hunt |
| Reel Format | 5 reels, 3 rows of symbols |
| Number of lines | 10 paylines |
| Direction of winning combinations | From left to right on adjacent reels, except for the scatter |
| Special symbol | Book — acts as both a scatter and a wild |
| Bonus round | 10 free spins for 3 or more scatters |
| Key bonus mechanic | An expanding symbol chosen by the player |
| Retrigger | Yes — additional free spin rounds within the bonus |
| Bonus Buy | Bonus Pop special offer with symbol selection |
| Total bet range | $0.01 – $45.00 |
| Maximum payout according to the paytable | $50.00 for 5 Conquistador symbols |
| Theoretical Return to Player (RTP) | 96.05% (95.19% including Bonus Pop) |
| Platforms | PC browser, mobile browser, casino app |
| Demo mode | Available in most game catalogs |
How Wins Work in Book of Conquistador
Basic Rules (How Combinations Are Calculated)
- All prizes are awarded for combinations of matching symbols.
- Symbols other than the scatter must appear on active paylines and on adjacent reels, starting from the leftmost reel.
- Scatter symbols count anywhere on the reels.
- For the number of scatter symbols and for combinations on each active payline, only the highest win is paid out.
- Wins for scatters and combinations on different paylines are added together.
- All prizes in the paytable are displayed for the currently selected bet and number of lines.
- Free games are played with the same bets and paylines as in the main game.
- During free games, you can win additional rounds of free games.
- In the event of a malfunction, all payouts and games are void.
Paylines
Book of Conquistador features 10 paylines. Their configuration is shown in the paytable as a separate diagram: some lines run horizontally, while others form zigzags and “checkmarks” across the three rows of the playing field.
The difference between the bet configurations is best seen in a comparison:
| Total Bet | Cost per Spin | Payout Amount | Who it’s for |
|---|---|---|---|
| $0.01 – $0.50 | Minimum | Small | For those who stretch their bankroll over a long session |
| $1.00 – $5.00 | Medium | Moderate | A balance between play duration and payout amounts |
| $10.00 – $45.00 | Maximum | High | For those who play short sessions at high stakes |
Important note: The values in the paytable are not fixed but are tied to the current bet. When the bet changes, all figures are recalculated proportionally, so the “maximum payout” in this review is a guideline for a specific configuration, not an absolute amount.
Special symbols: the book as a scatter and wild
The Book Symbol (Scatter + Wild)
The book in Book of Conquistador serves three functions at once:
| Function | How it works |
|---|---|
| Wild | Replaces all regular symbols in the game, helping to complete a winning combination on an active payline |
| Scatter | Counts anywhere on the reels and pays out regardless of paylines |
| Bonus Trigger | 3 or more Scatter symbols trigger 10 free games with a special expanding symbol |
Special restriction: During free spins, Wild symbols cannot substitute for the special expanding symbols. In other words, the book symbol within the bonus round continues to function as a regular Wild and as a trigger for new rounds, but it does not substitute for the selected symbol.
Free Spins: How the Bonus Mode Works
What happens when free spins are triggered:
- 3 or more scatter symbols trigger 10 free spins with a special expanding symbol.
- At the start of the round, books appear on the screen, hiding the game symbols.
- The player selects one of the books, and the symbol hidden inside gains the ability to expand.
Here’s how the bonus round works step by step:
| Stage | What Happens |
|---|---|
| 1. Trigger | 3 or more scatter symbols appear on the reels |
| 2. Book Selection | Books that hide symbols open on the screen; the player selects one of them |
| 3. Spins | 10 free games are triggered with the same bets and paylines as in the original game |
| 4. Payout | Wins for regular symbols are paid out first, followed by the scatter feature |
| 5. Retrigger | During free spins, you can win additional rounds of free spins |
Key point: The bet and paylines are locked at the moment the bonus is triggered; they cannot be changed during the free spins round. Therefore, the configuration of the base spin directly determines the value of the upcoming bonus.
How the expanding symbol works
Only the symbol that was hidden in the selected book gains the ability to expand. Its properties:
| Property | What this means in practice |
|---|---|
| Vertical expansion | Selected symbols expand vertically, occupying positions on the reel |
| Trigger condition | A sufficient number of these symbols must appear to form a winning combination |
| Position does not matter | The position of the symbols on the reels does not matter—only their number is important |
| Payout calculation | Expansion occurs after payouts for regular symbols |
| Adjacent and non-adjacent positions are counted | Payouts are awarded for combinations of adjacent and non-adjacent symbols of the same type, only on active paylines |
This leads to the game’s key strategic nuance: choosing a book is a choice between payout frequency and payout size. A high-value symbol like the conquistador pays out large amounts but appears less frequently, while lower-value symbols yield more modest but more consistent results over a series of 10 games.
Book of Conquistador Paytable (USD)
Below are the payouts in U.S. dollars ($) for combinations of matching symbols. The values correspond to the current bet and the number of paylines: when the bet is changed, the figures are recalculated proportionally.
| Symbol | 5 | 4 | 3 | 2 | Comment |
|---|---|---|---|---|---|
| Conquistador | $50.00 | $10.00 | $1.00 | $0.10 | The game's most valuable symbol |
| Chief | $20.00 | $4.00 | $0.40 | $0.05 | Second-highest-paying symbol |
| Girl | $10.00 | $2.00 | $0.30 | $0.05 | Medium Premium Symbol |
| Pyramid | $5.00 | $1.00 | $0.20 | $0.05 | The last symbol with a payout for two matches |
| Golden Mask | $1.50 | $0.40 | $0.05 | — | Highest-paying of the lower-value symbols |
| Necklace | $1.50 | $0.40 | $0.05 | — | Pays the same as the golden mask |
| Coins | $1.00 | $0.25 | $0.05 | — | Base symbol for frequent small wins |
| Compass card | $1.00 | $0.25 | $0.05 | — | Pays the same as coins and the ring |
| Ring | $1.00 | $0.25 | $0.05 | — | The lowest-paying symbol on the reels |
| Book (Scatter + Wild) | $20.00 | $2.00 | $0.20 | — | Substitutes for other symbols and triggers 10 free spins with 3 or more Scatters |
How to read the paytable: the difference between four and five symbols is very noticeable—for example, with the Conquistador, the fifth symbol increases the payout fivefold. That’s exactly why expanding symbols in the bonus round are so valuable: they allow you to cover the reels and “extend” a combination to its full length.
Bonus Pop Special Offer
Bonus Pop lets you play free spins with expanding symbols at any time, without waiting for three books to land. Available options open in a pop-up window when you click the corresponding button.
| Parameter | Value |
|---|---|
| What You Purchase | Free spins with expanding symbols |
| Symbol Selection | The player chooses which symbol will gain the expanding ability |
| Cost | Proportional to the total bet and depends on the selected option |
| How to Trigger | After the reels spin in the main game, where 3 scatter symbols appear |
| Differences from the standard bonus | There are none: the round is played according to the same rules |
| RTP including Bonus Pop | 95.19% vs. 96.05% in the regular game |
| Availability | This feature may not be available with some operators |
Practical note: The difference in theoretical return is noticeable. Regular use of Bonus Pop reduces the RTP by nearly one percentage point, so this option is more about saving time than about long-term profit.
Game Features of Book of Conquistador
- 5 reels, 3 rows, and 10 paylines.
- The Book symbol combines the functions of a scatter and a wild: it substitutes for other symbols and pays out anywhere on the reels.
- 10 free spins are awarded when 3 or more scatter symbols land.
- The player chooses the expanding symbol by opening one of the books on the screen.
- Symbols expand vertically and pay out on adjacent and non-adjacent positions on active paylines.
- Wilds do not substitute for expanding symbols during free spins.
- Retrigger: Additional free spin rounds can be won within the bonus round.
- Bonus Pop special feature with the option to choose a symbol in advance.
- Wide total bet range: from $0.01 to $45.00.
- Theoretical return to player is 96.05%; with Bonus Pop, it is 95.19%.
Pros and Cons of Book of Conquistador
| Pros | Disadvantages |
|---|---|
| The player chooses the expanding symbol themselves, rather than relying on chance | Big wins are almost always tied to the bonus and the expanding symbol |
| The Book acts as both a wild and a scatter—it often keeps the game going | Expansion isn’t guaranteed: you need a sufficient number of symbols |
| Very low entry threshold: total bet starting at $0.01 | Bonus Pop reduces the theoretical return to 95.19% |
| Flexible autoplay settings with balance and time limits | The Bonus Pop special offer is not available at all operators |
| Free spins can be retriggered | The game is linear, with no additional mini-games |
Play Book of Conquistador for free
If your goal is to familiarize yourself with the rules (10 paylines, the book as both a scatter and a wild, and the choice of an expanding symbol), it makes sense to start with demo mode at any casino or game catalog where a free version is available. In the demo, the balance is displayed in play money, and the mechanics are exactly the same as in the main game.
| Criterion | Demo Mode | Real-Money Play |
|---|---|---|
| Balance | Fictitious, resets | Your own funds |
| Registration | Usually not required | Required, including verification |
| Rules and Mechanics | Exactly the same | Exactly the same |
| Bonus Pop | Available with play money | Deducted from your real balance |
| Withdrawal of winnings | Not possible | Available according to the site’s rules |
Keep in mind that results in demo mode are not indicative of future sessions: each spin is calculated independently, and a winning streak in the free version does not increase your chances going forward.
Strategies and Tactics in Book of Conquistador
Book of Conquistador is a slot with random outcomes, and there are no “foolproof” strategies. However, there are approaches that can help you better manage your bankroll and expectations.
| Approach | Essence | What to Look For |
|---|---|---|
| Controlling Your Total Bet | Choose a bet from the $0.01–$45.00 range that fits your budget | All payouts are calculated proportionally to the bet |
| Conscious symbol selection | Decide what’s more important in this series: the size of the payouts or their frequency | High-value symbols appear less frequently, while lower-value symbols appear more often |
| Autoplay limits | Automatic stop based on specified balance and time conditions | Limits must be set in advance, before the series begins |
| Fixed sessions | Pre-set limits on spins and total amount | The key is to stick to the plan, not to extend it |
| Aggressive Martingale | Doubling the bet after a loss | Quickly leads to high bets and a loss of your bankroll |
Choosing the expanding symbol
- High-value symbols (Conquistador, Chief) pay out the largest amounts, but they appear in sufficient quantities much less frequently.
- Lower-value symbols (coins, card, ring) appear more frequently, and a series of 10 games is less likely to end without a win.
- The pyramid and the girl are a compromise: average payouts with moderate frequency.
Auto-play settings as a tool for discipline
- You can disable autoplay when bonus games start so you don’t miss the book selection.
- Limits are available for the number of rounds, time spent playing, the size of a single win, as well as for decreases and increases in your balance.
- The settings section includes a reality check at set intervals—a useful feature for managing session time.
The “Fixed Sessions” Strategy
- Set a limit in advance: for example, 100 autoplay rounds at your chosen bet.
- If the bonus hasn’t come through, end the session as planned, rather than playing “10 more spins.”
- It’s helpful to set not only a loss limit but also an exit point for when you’re on a winning streak.
Be Careful with Aggressive Martingale
Doubling your bet after a loss may seem tempting, but in slots, it quickly leads to large bets and the risk of losing your bankroll. In Book of Conquistador, this is especially dangerous: waiting for three books can take a long time, and the maximum total bet ($45.00) and your balance will run out before the streak “evens out.”
Download Book of Conquistador
Book of Conquistador by Endorphina runs in a browser—on both PCs and mobile devices. No separate installation file for the game itself is required: it opens directly within the platform.
| Platform | How to Play | Features |
|---|---|---|
| PC | Browser (Chrome, Safari, Firefox) | Graphics quality can be selected in the settings |
| Android | Mobile browser or casino app | You should only download the app from the official source |
| iOS | Safari or the official app | App availability depends on your region |
How to install on Android
- Open the official website of your chosen casino in your browser.
- If an app is available, download it from the casino’s official source or from the app store.
- Log in to your account, search for Book of Conquistador, and launch the game.
How to play on iOS
- Open the casino in Safari or install the official app (if available in your region).
- Log in and find Book of Conquistador in the game catalog.
- Select your total bet—and spin the reels.
Settings and Help Sections
| Section | What it contains |
|---|---|
| Statistics | Rounds played, net winnings, total wagered and won, time played, game history |
| Autoplay | Limits by round, time, win amount, and balance change |
| Language | Selecting the game interface language |
| Sound | Main sound, sound effects, and background sound with volume control |
| Miscellaneous | Reality check, display of bets in currency, and graphics quality |
It’s also worth noting the rules for saving game results: unfinished games, unclaimed winnings, and accumulated amounts are saved for 7 days, but may be deleted earlier during a scheduled system update. Before logging out of the game, it’s a good idea to make sure you’ve collected all your winnings.
Where to Play Book of Conquistador
The Book of Conquistador game can be found in the catalogs of online casinos that feature Endorphina content. When choosing a platform, look for practical factors: stability, the convenience of the mobile version, betting limits, and transparency of the rules.
| Criterion | Why It Matters |
|---|---|
| License and Rules | Transparent terms regarding bets, bonuses, and payouts |
| Availability of Bonus Pop | The special offer is not available with all operators |
| Demo mode available | Opportunity to learn the mechanics risk-free |
| Betting limits | Affect your ability to choose a comfortable session size |
| Processing of unfinished rounds | Saved results are available for a limited time |
| Self-limitation tools | Deposit limits, time limits, and self-exclusion |
Frequently Asked Questions About the Book of Conquistador Slot
How many paylines are there in the Book of Conquistador slot?
The game features 10 paylines, and the playing field is standard for the book-themed genre: 5 reels and 3 rows of symbols, for a total of 15 positions per spin. Combinations are counted only from left to right, on adjacent reels, and must start from the far left—if identical symbols appear starting from the second reel, no win is awarded. The scatter symbol is an exception: it counts anywhere on the reels regardless of paylines, and its payout is added to line wins.
How do I play the free games in Book of Conquistador?
The bonus round is triggered by 3 or more scatter symbols appearing anywhere on the reels—they do not need to be adjacent or land on active paylines. For this, the player receives 10 free spins with a special expanding symbol; the bet and number of paylines are locked at the moment the feature is triggered and do not change during the round. During the free spins, you can win additional rounds, so the bonus can sometimes last significantly longer than ten spins.
How is the propagating symbol selected?
This is the main difference between Book of Conquistador and most book-themed slots: the symbol isn’t assigned at random, but is chosen by the player. At the start of the free spins round, books appear on the screen, hiding game symbols, and you must open one of them—the symbol hidden inside gains the ability to expand. This feature is triggered when enough of these symbols land on the reels to form a winning combination; their position on the reels doesn’t matter—only the number counts. The symbols expand vertically and only after payouts for regular symbols have been made.
What is the Bonus Pop special offer?
Bonus Pop lets you play free games with expanding symbols at any time, without having to wait for three books to land in the main game, and it also allows you to choose in advance which symbol will gain the ability to expand. The available options appear in a pop-up window when you click the corresponding button, and the cost is directly proportional to the total bet and depends on the option selected; the bonus round itself is no different from one won randomly. An important detail: the theoretical return to player (RTP) with Bonus Pop is 95.19%, compared to 96.05% in the standard game, and this option may not be available at all with some operators.
What is the maximum payout, and what betting options are available in the game?
The highest-paying symbol is the conquistador: 5 of these symbols on a payline pay out $50.00, followed by the chief ($20.00), the girl ($10.00), and the pyramid ($5.00), while lower-value symbols like coins, the compass card, and the ring pay up to $1.00 for five. The book acts as both a scatter and a wild: it substitutes for all regular symbols in the game and pays out $20.00 for 5 symbols regardless of their position on the reels. The total bet can be adjusted within a wide range from $0.01 to $45.00, and all values in the paytable are scaled proportionally to the selected bet; therefore, the amounts listed correspond to a specific configuration and are not fixed.