Bone Raiders

Relax Gaming's pirate-skeleton hybrid trades treasure maps for a Dread Meter, a feature that quietly counts wild explosions during the base game and triggers a free-spin round once it fills. Six reels, cluster mechanics, and a soundtrack that leans more sea-shanty than horror. The art direction is friendly enough that you would not predict the variance, but the math hides teeth.

Provider documentation places this in Relax's high-volatility bracket with RTP around 96.18%. The ceiling sits at 10,000x, hit through a combination of wild multipliers and the Treasure Chest progressive prize that occasionally drops during bonuses. We have not yet seen an independent eCOGRA audit cited, so treat the published figures as provider-stated until a regulator-side number surfaces.

The bonus structure is where Bone Raiders earns its name. Each free spin adds a skeleton to the crew, and crews of five or more start contributing persistent wilds that survive between spins. Get the crew to seven and the multipliers begin compounding. This is the moment the slot stops being an aesthetic exercise and starts producing the screenshots you see shared online.

What it lacks is a buy feature in most jurisdictions, which will frustrate players used to skipping the base grind. The base game itself is generous on small wins but thin on retriggers, so building the meter takes patience. For Relax fans coming off Money Train and Hellcatraz, this feels like a sideways move into a softer aesthetic without softening the variance underneath.