Blood Suckers slot review

Why the Blood Suckers slot stands out

Most slots reviewed on this site publish RTPs between roughly 94% and 97%. Blood Suckers, released by NetEnt in November 2013, is published at 98.00%. That single number is why the game is still talked about more than a decade later. It means the game is designed to keep just £2 of every £100 staked over the long run, which puts its cost below a single-zero roulette bet at 2.70%.

The other half of the story is volatility. Blood Suckers is rated low, so wins come along more often and are smaller, and the top prize is a modest 1,014× stake. Put together, that makes it a game for stretching a budget rather than chasing a big result, and it appears on our list of high RTP slots for that reason.

How the features work in Blood Suckers

Blood Suckers has three moving parts: a wild, a scatter-led free spins round and a separate pick game. None of them is complicated, which suits a slot built for long, even sessions at a low-volatility setting. The sequence below matches the outline in Casino.org's Blood Suckers review (opens in a new tab).

The vampire wild

The wild is a vampire. It stands in for any symbol on a payline to complete a win, with two exceptions: it can't replace the scatter or the bonus symbol, because those two start the features and have to land in their own right.

Free spins with every win tripled

Three scatter symbols award 10 free spins. Every win during the round is tripled, so a line that would pay 50p in the base game pays £1.50 here. The round can also be retriggered from inside itself, which means it can run beyond its first ten spins.

The coffin pick bonus

Three bonus symbols switch the game to a pick-and-click bonus. You open coffins one at a time, and each vampire you slay inside pays a prize. The round carries on until a coffin releases a cloud of bats, which ends it and takes you back to the reels. Choosing feels like a decision, but there's no way to tell which coffin hides the bats, so it is a game of chance like the spins themselves.

Prize amounts in the pick game and the symbol payouts scale with your stake, and the help screen lists them for the version your casino runs.

Blood Suckers RTP compared with other casino games

An RTP is easiest to judge side by side. The margin is 100% minus the RTP; the expected loss is stake × margin. Here is how Blood Suckers compares with some games we cover, using our checked figures.

These are long-run averages over very large numbers of spins, not predictions for a session. But they do show that the choice of game changes the price of entertainment. A player who stakes £500 in total on Blood Suckers can expect to lose about £10 on average; the same £500 on a 95.1% game would cost about £24.50. Our RTP and house edge pages explain the arithmetic.

What low volatility means on Blood Suckers

Volatility describes how a game spreads its return. Low volatility means a larger share comes back through routine wins and less is reserved for rare large ones. On a 25-line game with a high RTP, that shows up as a balance that drifts rather than lurches.

Low volatility doesn't mean you will win. With a 2% margin, the long-run direction is still down; it just tends to get there more slowly and smoothly. And because the cap is 1,014×, even the best outcome is limited: £101.40 at 10p a spin, £1,014 at £1.

A smooth game can make it easy to lose track of time. Use the session timer and net position display that UK casinos must show.

Blood Suckers features and bonus rounds

Blood Suckers follows the classic NetEnt design of its era: line wins on 25 paylines, a wild symbol, a scatter-triggered free spins round and a separate pick-style bonus game set among the vampires' coffins. The section above explains how each one starts and plays out; the help screen adds the symbol values and pick-game prizes for the version your casino runs.

Because the volatility is low, neither feature is designed to produce a huge result. They add variety and lift the return of the session that hits them, but the 1,014× ceiling shows how tightly the top end is capped.

£20 on the Blood Suckers slot at three stakes

Expected loss on £20 of turnover is £20 × 2% = 40p, whatever the stake. What changes is how many spins that £20 buys and the size of the best possible result.

Low volatility usually means small wins return to the balance often, so your total turnover can run well past £20. If you stake 1,000 spins at 10p (£100 in total), the expected cost is £2. That is the trade the game offers: a long session for a small expected price, with a limited top end. Our cost per hour page shows how to work this out for any game.

How to play Blood Suckers

1. Load the game and confirm the RTP in its help screen.
2. Set your stake; the game uses 25 paylines, and UK caps are £5 (25+) or £2 (18–24).
3. Read the paytable and feature rules at that stake.
4. Press spin for each round; UK rules need a separate press and at least 2.5 seconds per spin.
5. Look out for three scatters, which start 10 free spins with tripled wins, or three bonus symbols, which open the coffin pick game.
6. Check your session time and net position regularly and stop at your limit.

UK rules that apply to Blood Suckers

Online slots in Great Britain have a maximum stake of £5 a spin for players aged 25 and over and £2 for those aged 18–24, as the Commission's online slots stake limit guidance (opens in a new tab) explains; our stake limits page has the dates. The Commission's RTS 14 product design standard (opens in a new tab) requires at least 2.5 seconds per spin, bans turbo and slam-stop, and stops games celebrating returns of less than the stake. Autoplay has been banned on slots since 31 October 2021.

Your age must be verified before you can deposit or play, including demo games. Slot winnings aren't taxed for UK players.

Blood Suckers misconceptions

See is a higher RTP slot better? and our slot myths guide for more.

Blood Suckers and casino bonus terms

Bonus terms often list games that are excluded from wagering or count for less, and high-RTP slots can feature on those lists. If you play with a bonus, read the eligible games list before you start, and expect the casino to apply it strictly. Our guide to game weighting explains how contributions work, and bonus terms covers the conditions that matter most.

The house edge applies while you wager a bonus just as it does with cash. A bonus is a conditional extra, not a way to make money from the game.

Slots similar to Blood Suckers

The obvious next step is the sequel, Blood Suckers II, at 96.94% with a 1,298× cap, or Red Tiger's Blood Suckers Megaways at 97.66% with a far higher 20,521× ceiling. For more low-volatility play, see our low volatility slots list; for more vampires and monsters, the horror slots page. Every review is on the main slots hub.

For wider context on how slots are designed, Wizard of Odds' slots section (opens in a new tab) is a useful independent read. If gambling is affecting your health, the NHS gambling addiction page (opens in a new tab) lists treatment and support.

Where to find Blood Suckers with our partners

Our partner offers are for slots, but none is linked to Blood Suckers, and we can't confirm which partners stock it, so check the game lobby. 18+ and terms apply to each offer.

• PlayOJO: new UK customers (Northern Ireland excluded) who make a first deposit of £10 or more get 80 free spins on Big Bass Bonanza at 10p each. Winnings are paid in cash with no wagering; the offer can't be combined with others and needs the designated offer link.
• Coral: deposit (certain types excluded) and bet at least £10 on slots for 100 free spins on selected games, 10p each, to be accepted within 48 hours and used within 7 days, with no wagering on winnings. Neteller, PayPal, Paysafe, Skrill, prepaid cards and certain debit cards don't qualify. Available 1 October 2026 to 1 February 2027.
• Ladbrokes: after depositing, spend £10 or more on slots to get 50 free spins a day for the first 10 days, up to 500, at 10p on selected games. Claim by 23:59 each day; spins are valid for 7 days; no wagering. Prepaid cards, PayPal, Paysafe, Neteller, Skrill and Moneybookers deposits are excluded.

Coral and Ladbrokes are run by the same company, LC International Limited, so one person may not be able to open new accounts at both. Our free spins guide explains how spin offers are valued.

18+. Every casino game has a built-in house edge, so over time you should expect to lose what you stake. Set a budget before you play and stop when it’s gone: safer gambling tools and support. Free, confidential help: National Gambling Helpline 0808 8020 133.