GORGON'SLAIR
A ruined Greek temple at night, a five by five board, and Medusa watching from the pediment. Five or more of a symbol touching up, down or across turn to stone and shatter, new symbols fall into their places, and every X a win uncovers multiplies the whole spin.
One Curve. One Decision.
Gorgon's Lair is a cluster slot on the same server-authoritative core as the other titles. Five or more of one symbol touching up, down or across pay, turn to stone, shatter and make room for the symbols that fall in after them, and the board pays again until nothing connects. A cleared cell may be marked with an X; a later connection over it sends the X into the plaque, and the plaque multiplies the spin's total when its tumbling is done. Two switches trade a bigger stake for a richer spin: two sticky wilds on every spin at 4.2×, or her gaze on every spin at 2.8×. RTP is 96.5% and a round pays at most 5,000× the stake.
Five Touching Pay
Set the stake and press SPIN. The whole round, every tumble and the free spins it may open, is settled on the server before the first column lands, and the client only plays it back. Five or more of one symbol touching up, down or across pay by how many they are, from five to twenty-five, and the Stone Wild joins any of them. What connected turns to stone and breaks, the symbols above fall past it, new ones drop in, and the board pays again until nothing more connects.
Every X Lifts The Spin
Each cell a winning connection clears may be marked with an X, and new symbols land on top of it. When a later connection covers an X, the X flies into the plaque under the board and it goes up by one; when the spin's tumbling is done, its total is multiplied by the plaque: one X pays the spin ×2, three pay ×4. On about one paid spin in twenty Medusa looks at the board and turns two to four symbols to wilds before anything is counted.
The Gorgon's Awakening
Three, four or five Medusa heads open 10, 12 or 14 free spins. Her medallion turns over to its snarl, the temple's light turns red, and on every free spin she turns three to five symbols to wilds; now and then a wild lands sticky and holds its square to the end. Every connection in the bonus leaves at least one X, the plaque keeps every X it collects for the whole bonus, and it multiplies each free spin's total. A bonus is worth 96.5× the stake on average, and it can be bought outright for 100×. Most of that sits in the rare big bonus: half pay under 63×, and about 3 in 10 pay more than they cost.
Five By Five Beside Her
The board stands in the ruins of her temple, framed in dark stone with a serpent coiled at each corner, and Medusa waits beside it on her serpent tail, moving between spins. The multiplier stands at the board's right. Balance, win and BUY FEATURES sit left of the round SPIN button, the bet, turbo, sound, music and rules to its right.
Stone, Then Shatter
Her gaze has turned symbols to wilds, and two connections, the pomegranates and the lyres, have turned to stone through them with what each paid standing over it in gold. The stones break, the symbols above fall into the gaps, new ones drop in, and the board is read again until nothing connects.
The Multiplier Strikes The Spin
Every X a win uncovered has flown into the multiplier beside the board, which reads ×3. When the tumbling stops, the ×3 strikes the spin's total and multiplies all of it. One more X still burns on the board, under a symbol no win has covered yet.
Three Heads Open The Bonus
Ten free spins. Before the first one the door explains the bonus in four small scenes with the game's own symbols: three to five wilds from Medusa on every spin, sticky wilds that stay for the whole bonus, X that grow a multiplier which stays all bonus, and three heads adding five more spins.
Wilds On Every Spin
Free spin two of ten. Medusa has turned symbols to wilds, a red sticky wild holds its square to the end of the bonus, and beside the board the multiplier, the free spins left and the bonus win keep count.
Two Switches, One Buy
Behind BUY FEATURES, from the cheapest: her gaze on every spin at 2.8× the bet, two sticky wilds on every spin at 4.2×, or the bonus outright at 100×. The bet changes right there, a switch stays on until it is turned off, and each is priced to return about 96.5%.
Check The Math Yourself.
Every round is committed before it opens and verifiable after it ends. Operators do not have to take our word for it, and neither do their players.
COMMIT
Before a round opens, the server publishes sha256(server_seed). That hash pins the crash point in place before the first bet is taken.
PLAY
The round runs. crash_at derives from HMAC-SHA256(server_seed, client_seed:nonce), so neither side can steer the outcome mid-round.
REVEAL
After the bust, the server reveals server_seed. Anyone can rehash it, recompute crash_at, and confirm both match the record.
THE REFERENCE VERIFIER AND FULL DERIVATION SHIP WITH THE INTEGRATION DOCS.
$ rara verify --game gorgonslair --round 001042 # hash published before bets opened server_seed_hash sha256:9f2c71a84be…c30be81a client_seed gorgonslair-demo-7f3a nonce 001042 hmac = HMAC_SHA256(server_seed, client_seed + ":" + nonce) = 7c2e4d09aa61b8e2…10f4b90f h = int(hmac[0:8], 16) crash_at = max(1.00, floor(99 * 2^32 / (h + 1)) / 100) = 3.47x $ rara reveal --game gorgonslair --round 001042 server_seed 4b7dd21c09aae5…f133c2e9 sha256(server_seed) == server_seed_hash ok recompute(crash_at) == 3.47x ok verify == true
The Math Ships With The Game.
RaRa Studio is an independent game studio in Tbilisi, Georgia. Every title starts as a model: simulated, stress-tested, and documented before the art goes in. Spec sheets and verifiers are part of the product, and Vice Run is the first title through the pipeline.
Put GORGON'S LAIR On Your Platform.
Integration docs, the full math spec, and playable builds are available under NDA to operators, aggregators, and platforms.