Bone Raiders Slot Review: 7×7 Bonus and Increasing Respin Multiplier

Bone Raiders starts on a confirmed 5×3 Ways layout and can expand to 7×7 in its Bonus game. Relax Gaming describes matching skull and bone symbols, a mega respin with an increasing multiplier, and four special symbols—wand, bomb, cannon and compass—landing on reels 2 to 4. The page also says the expanded bonus can convert symbols into coins. Stakes run from €0.10 to €100, while RTP, volatility and maximum win are not published. The result is a feature path with a tangible board expansion, but several award conditions still belong to the help screen.

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Bone Raiders at a glance

Provider	Relax Gaming
Genre / theme	Horror
Game type	Video slot
Reels / grid	5×3 base; 7×7 Bonus
Payout mechanic	Ways
Main features	Matching skulls and bones, a mega respin with increasing multiplier, special symbols on reels 2–4, and a 7×7 Bonus with coin conversion.

RTP and stake limits can vary by version and market. Check the information screen in the game you open. Maximum win is a ceiling, not an expected result.

A 5×3 ways base built from bones

The official page frames Bone Raiders as a 5×3 bone-themed slot and lists Ways as its payout mechanic. The base event is gathering skull and bone symbols to create matching symbols; because the game uses Ways, the exact number of connected routes is not supplied as a line count. Relax Gaming verifies the alternative and German IDs as boneraiders_94 and boneraiders_86 and shows a €0.10 minimum with a €100 maximum bet. The 5×3 dimension is important because it gives the reader a defined starting board before the Bonus game changes the scale. The page does not state the minimum match or the ordinary-symbol paytable.

From special symbols to a 7×7 bonus

The listed bonus route has two distinct stages. First, the wand, bomb, cannon or compass symbols must land on reels 2 to 4; the page confirms that reel range but does not state the count required or whether each symbol has a separate role. The slot then expands into a 7×7 Bonus game, where Relax Gaming says the chance to convert symbols into coins comes alive. Alongside that, the matching-symbol system is paired with a mega respin mechanic and an increasing multiplier. The official description does not explain whether the respin is the trigger for the expansion, how the multiplier increments, which symbols become coins or how the bonus ends. Those are meaningful unknowns, not gaps to fill with genre convention. a published animal-feature comparison is useful for comparing another animal-led feature while keeping Bone Raiders’ 7×7 coin conversion and respin path specific.

Verified structure, incomplete numbers

The exact page verifies the 5×3 base, 7×7 Bonus expansion, Ways mechanic, special-symbol reel range and €0.10–€100 stake range. It does not state RTP, formal volatility, maximum win or release date. The strength is the visible escalation from a compact Ways board into a much larger coin-oriented state, with the increasing respin multiplier giving the transition a second axis of value. The limitation is that the trigger threshold and coin conversion rules are not quantified, so the size of the board alone cannot tell us how often the high-value sequence appears or what its realistic ceiling is.

Strengths and weak points

Strengths

The verified 5×3-to-7×7 expansion gives the bonus a concrete visual escalation, while Ways, coin conversion and an increasing respin multiplier work on separate parts of the result.

Weaknesses

The source does not give the special-symbol threshold, respin duration, coin conversion rule, RTP, volatility or maximum win, leaving the expanded feature hard to price in practice.

Our Editor’s View

Bone Raiders gives its theme a functional skeleton: matching bones establish the base result, special symbols on reels 2 to 4 open the possibility of a larger Bonus board, and the 7×7 state introduces coin conversion alongside an increasing respin multiplier. That is a clearer progression than a feature list with no connection between stages. Our editor would recommend a close look at the live rules for players who enjoy board expansion, because the missing symbol count, respin duration and coin formula determine whether the bonus is a brief visual change or a sustained state. The page supports the structure, not a promise about frequency or returns.