10 Kings Slot by Relax Gaming

The reels sit inside a regal medieval throne room with gold-trimmed columns and deep purple drapery, and the headline character is a wild-haired king in red-and-gold armour clutching a sword. Card-suit royals fill the low pays in green clubs, blue spades, red hearts and amber diamonds, with the four royal court figures handling the high end.

The base game runs on Hot Spot Re-Spin. Designated reel positions are flagged as hot spots, and any winning symbol that lands on one gets locked while the rest of the grid spins again. The lock symbol is a literal padlock with a crown, and once a position is sealed it stays put through every re-spin in that sequence. Chains keep extending as long as new wins keep dropping into hot positions.

To the left of the reels you'll see a vertical 8-step ladder running from 0.10x at the bottom to a 10,000x payout at the top. That ladder is the entire point of the bonus. Each step pays out as you climb it, with mid-rung values like 24x and 200x along the way, and the final rung is where the headline number lives.

Free spins are short but heavy. Every line win during the bonus is multiplied by 5x flat, and there's no retrigger padding the round out, so the math leans on a few good hits rather than long grinding sessions. Combined with the very-high volatility rating, dead spins are common and the interesting payouts cluster around the lock-and-ladder interactions.

For a 2020 Relax Gaming release, 10 Kings sits in an odd spot. There's no buy bonus, no ante bet, no megaways gimmick, just 15 paylines and a feature set that wants you to chase one specific thing: hot spots stacking up while the ladder ticks higher. Simple intent, brutal variance.