
NetEnt
Dead or Alive 2
Dead or Alive 2 is a NetEnt western slot with 9 fixed paylines, 96.80% RTP, three free-spin modes, and extreme bonus volatility built around sticky wilds.
GreatSlots review · Play'n GO · 2016
Book of Dead is still one of the clearest examples of a classic adventure slot done properly. The base game is lean, the feature is easy to understand, and the bankroll swings are obvious from the first few spins.

GreatSlots score
4.6/5
Best for
experienced players who actively seek high-volatility bonus chases
A high-volatility pick for players who want variance without a crowded modern feature set.
Book of Dead still works because the formula is simple: high volatility, expanding-symbol free spins, and very little distraction around the main feature.
Wins land on 10 fixed paylines across a standard 5x3 setup. Mid-tier symbols carry most of the base-game hit frequency, while premium character symbols and the book scatter drive the meaningful moments.
The biggest swings come from free spins. Once the bonus starts, one premium symbol is chosen at random and expands to cover full reels. That is where the strongest sessions come from, but the path is spiky and streaky, so bankroll control matters.
Book of Dead is a strong fit for players who already understand what high volatility means in practice. It suits short sessions with clear stake control much more than casual play where frequent small wins matter.
If you prefer layered bonus rounds, reel modifiers, or a softer variance curve, there are easier fits in this lineup.
The mobile version stays clean and readable, with the paytable and bonus explanation accessible without digging through extra menus.

NetEnt
Dead or Alive 2 is a NetEnt western slot with 9 fixed paylines, 96.80% RTP, three free-spin modes, and extreme bonus volatility built around sticky wilds.

Push Gaming
Razor Shark is one of the sharper very-high-volatility picks in this set because it layers expanding systems and bonus upgrades without losing the core logic.

Pragmatic Play
Gates of Olympus wins on spectacle and volatility. Tumbling wins, multiplier symbols, and free spins can compound fast, but the ride is uneven.
Use these nearby comparisons when RTP, volatility, or feature shape matters more than the theme.
RTP guide
RTP is useful only when it is read with volatility, max win, feature access, and the exact game version being reviewed.
Bonus guide
Free spins matter most when the trigger, retrigger rules, multipliers, and symbol upgrades are clear enough to compare before play.
Volatility guide
High volatility is useful only when the review explains where the value sits and how long the game can feel quiet between major moments.
Provider guide
Play'n GO reviews cover book-style expanding-symbol slots, grid games, classic fruit formats, and mythology-led bonus builds.
Compare jackpot-led slots where RTP and feature access matter.
Compare changing reel sets, free spins, and multiplier pressure.
Compare sharper bonus chases with longer dry stretches.
Compare faster boards built around tumbles, clusters, and simple reads.
Compare character-driven slots where theme, bonus clarity, and volatility differ.
Yes. The game is built around infrequent but meaningful bonus payouts, so longer quiet stretches are part of the profile.
The free spins feature is simple, recognizable, and still capable of producing strong sessions when the expanding symbol aligns well.
Players who want frequent feedback, lower variance, or a feature-rich base game will usually find it too dry.