NEWBonus buy
Balloon Colossus
Demo
Loading the game…
RTP 93%
Permafrost: a mine in the ice and veins of precious ore.
20 lines, wins by 3 or more matching symbols from the left; the miner's lamp is a wild on reels 2, 3 and 4. 3, 4 or 5 headframe tokens anywhere pay 2×, 6× and 20× the bet and start the bonus.
The bonus is a descent down a 15-layer shaft: 8, 9 or 10 free spins, and the whole map is shown at once — every layer has a multiplier (×1, ×2, ×5, ×10, ×25) and one mother lode ×100 hides on layers 4–15. Each free spin the cage drops one layer and wins are multiplied by the layer it stands on. A charge drops it one more layer at once; a winch adds a free spin (up to 14 in total). The bonus ends when the spins run out or the cage reaches layer 15.
Most free spins pay nothing — a few spins on rich layers carry the bonus. Maximum win is 5000× the bet. The RTP of the table in use is shown in the game info.
The bonus is a descent through 15 mine levels with multipliers up to ×25 and a hidden main vein of ×100.
Yes. The Frostvein demo needs no sign-up or deposit and uses the same rules and maths as real-money play.
The theoretical RTP of Frostvein on our site is 93%. The current value is always shown in the game info.
The maximum win per round is x5000 your bet.
Yes, use the Bonus button; the price is shown next to your bet.
Your balance is kept in USD. Deposit with USDT, USDC, BTC, ETH, LTC, SOL or BNB and withdraw in the same coin.
