Bone Raiders: Slot Overview

Bone Raiders—so who’s out there “raiding” bones? Are we dealing with shady fossil smugglers or classic tomb raiders? We’re leaning toward the latter (or something in that ballpark) for this Kindred-owned Relax Gaming release, which loosely straddles the line between an online slot and a video game—very loosely, if we’re being kind. Mechanically, it blends respins with an increasing multiplier in the base game, then switches into a coin-collection style bonus where multipliers once again do the heavy lifting.

Relax Gaming clearly went for a charming presentation with Bone Raiders’ interface, sharing a similar vibe to Snake Arena, Mega Heist, and Marching Legions. Here, you view the action from above, as if perched on a winged mount. Below sits a grid bordered by a moat, walls, and parched, cracked ground. When the bonus round kicks in, the viewpoint drops into a more enclosed, stone-covered setting. The whole thing is pleasantly put together, from the tidy little props scattered around to the friendly-looking skeleton cast.

Bone Raiders makes a strong separation between the core game and the bonus. In the main game, play happens on a 5×3 matrix, whereas the bonus takes place on a 3×3 expandable up to 7×7 grid. As for volatility, it sits in the medium-high range, and the max RTP when staking 10 c to $/€100 per spin is 96.1%.

Across the base game reels, eight standard symbols appear and pay via a Pay Ways system. The first four are diamonds, clubs, hearts, and spades, each returning 0.3x the bet for 5 OAK. After that come four skeleton characters, paying 10 to 100 times the bet for a five-of-a-kind hit. Bone Raiders includes no wild symbols, though the respin plus escalating multiplier setup helps offset that omission.

Bone Raiders: Slot Features

Bone Raiders strengthens its base gameplay by awarding respins after wins, while also doubling the win multiplier as it goes. Land enough scatters—or pay to enter—and the coin-building bonus round begins.

Respin Multiplier

During the base game, any win triggers a respin and doubles the win multiplier. This chain continues until a respin produces no further wins. For respins, all symbols drop off the reels, not only the ones involved in a win. Each fresh spin always begins at an x1 multiplier.

Bonus Game

Hitting 3 scatter symbols on reels 2, 3, and 4 triggers Bone Raiders’ bonus round. The play area expands to a 7×7 grid, though only the centre 3×3 area is active at first. Everything outside that is filled with blockers. The triggering scatter symbols convert into feature symbols and immediately apply their effects. Feature symbols target other positions according to their effect. If a targeted spot contains a blocker, it is destroyed, turning into an active space where symbols can land. If the targeted position holds a coin, the coin’s value is doubled. The feature starts with 2 spins, which reset whenever a feature symbol lands. For every 20 blockers removed, the spin reset value increases by +1 spin. The feature symbols list is this:

• Magic Staff – targets one symbol 3 to 7 times.
• Bomb – targets the surrounding area, with the bomb sitting in the centre of a 3×3 to 7×7 sized area.
• Cannon – shoots a random number of targets from 1 area to all areas.
• Compass – targets a set pattern such. This could be row, column, diagonal, row + column, both diagonals.

Once a feature symbol finishes its action, it transforms into a coin with 1x the bet value. It’s worth underlining again that when feature symbols strike coins, those coin values double.

Feature Buy

Bone Raiders’ bonus round is available via the feature buy at a price of 70 times the base bet. The feature buy RTP is 96.5%.

Bone Raiders: Slot Verdict

Bone Raiders feels like a mix of slightly retro ideas with a mostly modern execution. The more familiar element is the respin mechanic, which gives off a Jack Hammer-meets-DoubleMax kind of energy. That said, Bone Raiders doesn’t copy either approach outright, and the way it combines respins with multiplier growth ends up feeling distinct—definitely worth a few spins just to get a handle on its rhythm. In practice, it’s a neat feature that can drift along, bounce around, do very little, or… suddenly kick off. Overall, it adds to the base game, even if there may be a lower hit rate to balance it out. There weren’t hit rate figures available to confirm that, but it also didn’t feel like the game was drowning in endless dead spins.

Once you trigger (or purchase) the bonus round, the base game is left behind and the experience changes significantly. This mode plays quite differently. Starting with only two spins is tight, meaning there’s little margin for mistakes unless you start clearing blockers quickly. If things go your way, the reset value can be pushed up to a maximum of 4, which gives you a bit more room to work with. During testing, breaking through lots of blocks wasn’t especially hard to pull off. From there, it becomes a chase for as many feature symbols as possible to generate and enhance coin symbols. It’s easy to picture scenarios where feature symbols repeatedly connect with coins, rapidly doubling values into something substantial. Potentially.

When Bone Raiders starts doubling aggressively, it can theoretically climb all the way to its 10,000x the bet win cap. It’s the kind of slot where you can genuinely imagine that outcome. Of course, it’s still a fairly volatile Relax Gaming title, so underwhelming results are also on the table. Still, with its likeable skeleton crew, an entertaining base feature, and a multiplier-driven bonus, there’s plenty of incentive to go raiding.