Blood Suckers Slot Review

Blood Suckers is a vampire-themed video slot from NetEnt that has remained one of the most recognised titles in online gaming since its original release in 2009. The slot is built on a classic 5-reel, 3-row layout with 25 fixed paylines. What sets it apart from the majority of slots on the market is the RTP of 98%, which is roughly two percentage points above the industry average and makes it one of the highest-returning slots ever produced.

Play Blood Suckers

The game features low volatility and a hit frequency of approximately 44.9%, meaning winning combinations appear in almost every second spin on average. Two bonus features — Free Spins with a 3x win multiplier and an interactive Bonus Game set in an ancient burial chamber — contribute a meaningful portion of the total return. Bets range from R0.25 to R50 per spin, and the maximum payout reaches 1,014.6x the total stake.

Key specifications for Blood Suckers:

Symbols and Paytable

Blood Suckers uses a fully thematic symbol set without any card rank fillers. Every icon on the reels is tied to the vampire theme, split into low-paying and high-paying groups.

The four low-paying symbols are items associated with vampire slaying: Garlic, Crossbow, Bible with Cross, and Holy Water bottle. These return smaller payouts and appear frequently on the reels to sustain the high hit rate. At a R1 bet, landing three Holy Water symbols on a payline pays R0.40, while five of any low-pay symbol returns between R3 and R4.

High-paying symbols are represented by four vampire characters. The Female Vampire (Succubus) sits at the bottom of the premium tier, followed by Nosferatu, the Aristocrat holding a wine glass, and Vlad the Impaler at the top. Five Vlad symbols on one payline pay R20 at a R1 bet, which is the best regular symbol payout. For reference, three Aristocrat symbols return R0.60.

The Wild symbol — depicting a vampire biting a woman's neck — is by far the most valuable icon. It substitutes for all symbols except Scatter and Bonus. Five Wilds on a single payline award R300 at a R1 bet (300x), and it also pays starting from just two matching symbols.

Below is the paytable with approximate values at a R1 total bet.

Scatter payouts are calculated separately from paylines and are based on the total bet. Two or more Scatter symbols anywhere on the reels trigger a payout: 2 Scatters = 2x bet, 3 Scatters = 4x bet, 4 Scatters = 25x bet, 5 Scatters = 100x bet.

Winning combinations on paylines form from left to right, starting from reel 1. Only the highest win per payline is paid, while simultaneous wins on different lines are added together.

Free Spins and Bonus Features

Blood Suckers offers two distinct bonus rounds, each triggered by its own special symbol. Together, these features are responsible for a substantial portion of the slot's high RTP.

Free Spins

Landing three or more Scatter symbols anywhere on the reels activates 10 Free Spins. During this round, all payline wins are multiplied by 3x, which significantly increases the value of every winning combination. Free Spins are played at the same bet level that triggered them, so there is no need to adjust settings.

If three or more Scatters land again during Free Spins, 10 additional spins are awarded. However, the wins from these retriggered spins are not multiplied by the Free Spins multiplier — only the originally awarded Free Spins carry the 3x boost. At the end of the round, all Free Spins winnings are added to any wins from the triggering spin.

The Scatter payout itself is awarded regardless of Free Spins activation. Even two Scatters appearing in the base game return 2x the total bet, which helps sustain the bankroll during regular play.

Bonus Game

The Bonus Game is triggered when three or more Bonus symbols (stake and hammer on a coffin) land in succession from left to right on an active payline. The triggering combination must start from reel 1 — Bonus symbols appearing only on reels 3, 4, and 5 will not activate the feature.

Once triggered, the screen transitions to an ancient burial chamber filled with coffins. The objective is to click on coffins one by one. Each coffin containing a vampire awards a random cash prize when the vampire is slain. The round continues until a coffin with bats is selected, at which point the Bonus Game ends.

The maximum win in the Bonus Game is 812.8x the total bet, and the prizes are proportional to both the bet size and the number of Bonus symbols that triggered the round. Only one Bonus Game can be awarded per spin.

How to Play Blood Suckers

The betting system in Blood Suckers uses coin values and bet levels. The total bet is calculated by multiplying the coin value by the bet level and then by the 25 fixed paylines. This structure provides 18 different bet denominations, ranging from R0.25 at the minimum to R50 at the maximum setting.

At a R1 total bet, each of the 25 paylines receives R0.04. Payouts shown in the paytable adjust dynamically based on the selected bet amount. The game can be played in both cash and coin modes, switchable through Game Settings where available.

Autoplay allows setting between 10 and 1,000 automatic spins with advanced stop conditions — for example, stopping when a bonus feature is triggered or when the balance changes by a selected amount. Quick Spin mode is also available to speed up the reel animation.

All 25 paylines are always active and cannot be adjusted. Bet line wins pay only from left to right, and only the highest win on each individual payline is counted. Wins on separate paylines are added together for the total spin result.

For those looking to explore the mechanics risk-free, the Blood Suckers demo is available at many online platforms, allowing full access to all features without wagering real money.

Payout Mechanics and Math Profile

Blood Suckers operates on a traditional payline-based payout system with a 5×3 grid, creating 15 symbol positions per spin. With 25 fixed paylines mapped across these 15 positions, multiple lines frequently overlap the same symbol coordinates. This structural overlap is a key factor behind the slot's high hit frequency — a single favourable symbol placement can satisfy several paylines simultaneously.

The RTP of 98% is distributed across three distinct payout channels. Base game line wins account for roughly 52% of the total return. The Bonus Game contributes approximately 20%, and the Free Spins round with its 3x multiplier provides around 13%. The remaining portion comes from Scatter payouts, which are awarded independently of paylines.

The relationship between the 3x Free Spins multiplier and the payline structure is worth examining. Because the slot has 25 lines on a compact 5×3 grid, a single spin during Free Spins can generate multiple overlapping wins, each tripled. This creates a compounding effect that the base game cannot replicate, and it explains why the Free Spins round can produce results well beyond what the low volatility label might suggest.

The Bonus Game operates on entirely different logic — it is a pick-and-click feature detached from reel mechanics, with outcomes determined by random selection rather than symbol positioning. Its maximum payout of 812.8x is the single largest possible award from any individual feature in the game. However, the average Bonus Game return is considerably lower, as the round ends immediately upon selecting an empty coffin from the 12 available.

The Wild symbol plays a dual role in the mathematical structure. As a substitute, it increases the probability of completing partial payline matches, directly supporting the high hit rate. As the highest-paying symbol at 300x total bet for five of a kind, it also represents the theoretical ceiling for single-line payouts. During Free Spins, a five-Wild line would pay 900x — the largest possible payline outcome in the entire game.

Playing the Blood Suckers demo version is a practical way to observe how these structural mechanics interact over an extended session before committing real funds.