7x7 cluster pays · portal wilds that grow, step and merge · 10 to 18 free spins · EXTREMELY volatile · 10,000x max win · 96.06% RTP
A cluster pays slot in the TzHaar city under Karamja's volcano. Forty-nine symbols fill a seven by seven grid and any five or more of one symbol touching, up, down, left or right, pays. Winners burn away, the rest fall, new symbols drop in from above, and it goes on while something pays. A win that holds no portal leaves a Fire Portal behind: a wild with a multiplier that grows by one with every win it joins and steps a cell each time, and two portals in one win merge with their multipliers multiplied together. Three Tomes of fire open the free spins, where the portals stay for the whole feature.
Fire Portals is a rebuild of the cluster slot whose whole idea is a wild that moves. We set it in the TzHaar city, the fire people's home under Karamja's volcano, where TzKal-Zuk waits at the bottom of the Inferno and the Tome of fire is the book you would expect to find. The symbols are theirs: the Fire rune, Tokkul, the Fire orb, the obsidian shield, maul and sword, and Zuk himself on top. The portal is a hole burned in the board that everything falls through.
The portals are where the game lives. In the base game they are born and gone inside one spin, so the question every tumble is whether the next cluster will land on one and pay double, triple, more. In the free spins that question compounds: a portal that is never cleared can reach 10x on its own, and two of them meeting in one cluster become their product. A 10x meeting a 12x is a 120x portal standing in the middle of the board with spins still to play.
This is an extremely volatile slot, as the original is. Most features pay around twenty times the bet and end quietly; a few build a portal that keeps meeting clusters, and those are the rounds that reach hundreds or thousands of times the bet. The 10,000x cap ends a round the moment it is reached.
The music is the TzHaar's own: the Fight Pit's track under the base game and the Inferno's under the free spins. Everything a spin does is decided from the provably fair seed before a symbol moves: every drop, every portal and where it goes, every Tome, and the whole chain of tumbles, which is computed on the server and replayed on screen.
An Old School RuneScape themed cluster pays slot. Seven reels by seven rows, five or more of one symbol touching pays, winners tumble away, and Fire Portal wilds appear where clusters were, growing and merging their multipliers as they join more wins.
A winning cluster with no portal in it leaves one behind at 1x. Every win a portal is part of grows it by 1 and multiplies that win by its new value, and the portal steps one cell inside the win. Two or more portals in one win merge into one with their values multiplied together, up to 2,500x. In the base game they close when the tumbling stops; in the free spins they stay for the whole feature.
Three, four, five, six or seven Tomes of fire open 10, 12, 14, 16 or 18 free spins. The same counts during the feature add the same spins again. The portals born during the free spins never close, so they keep growing and merging from spin to spin.
Ante Bet raises the stake by a quarter and lands the free spins about twice as often. Buy Free Spins costs 100 times your bet and puts at least three Tomes on the next spin, which opens the feature. You cannot use both at once.
96.06%, measured over six million simulated spins, with the ante and the buy within a point of it. The most a round can pay is 10,000x your bet.
Extremely volatile. Long losing runs are normal, in the base game and in bought features alike.
The TzHaar are the fire people of Mor Ul Rek, the city inside Karamja's volcano, home of the Fight Cave and the Inferno. TzKal-Zuk is the boss at the bottom of the Inferno, Tokkul is their currency, and the obsidian shield, maul and sword are the weapons they trade. They are the symbols of this slot.
Every round is generated from a server seed that is hashed and shown to you before you bet, combined with a client seed you control and an incrementing nonce. When you rotate your seed the old server seed is revealed, so you can replay every round it produced and confirm nothing changed after the fact.
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