Crystal Towers (Big Time Gaming) – Slot Review
Crystal Towers by Big Time Gaming presents a sleek and futuristic theme centered around geometric energy and sci-fi minimalism. The slot features glowing crystal cube symbols in a range of vibrant neon colors—cyan, yellow, green, blue, red, and purple—set against a dark, digital backdrop that resembles a high-tech energy grid. The visual design is clean and modern, with subtle animations and effects that emphasize a sense of depth and digital power. Paired with an ambient, synth-style soundtrack, the overall aesthetic evokes a high-voltage, high-tech world where crystalline energy powers every spin.
Crystal Towers is a high-volatility slot featuring a 5-reel, 5-row grid and a Cluster Pays mechanic, where wins are formed by landing clusters of five or more matching symbols. The game has a fixed RTP of 96.36% and supports bets ranging from £0.10 to £20.
Crystal Towers Symbols & Pay Table
The slot includes a total of nine symbols. Four of these are low-paying, represented by cyan, yellow, orange, and green cubes. The premium symbols consist of blue, red, and purple cubes, with the purple cube being the most valuable, paying between 0.5x and 5x for clusters of 5 to 15 or more. In addition to regular symbols, players will encounter Wild symbols, Multiplier Wilds, and Trigger Wilds. Regular Wilds substitute for all symbols except Multiplier Wilds and Trigger Wilds, while any winning combination that includes a Multiplier Wild will be boosted by the value shown on each Wild involved in the win.
Crystal Towers Features & Mechanics
The Cluster Pays system allows clusters to connect on multiple sides of the tower. In the base game, the tower comprises five rows and 80 symbols. During the Free Spins feature, this expands to ten rows, increasing the symbol count to 160 and boosting the win potential significantly.
The game also features a reaction mechanic. After each winning combination, the winning symbols are removed, and the remaining symbols collapse downward as new ones fall from above to fill the empty positions. This cascade effect continues until no more wins occur.
Free Spins are triggered when a Trigger Wild is part of a winning cluster. This awards 10 free spins and initiates the round with a six-row tower containing 96 symbols. On the 3rd, 5th, 7th, and 9th spins, an additional row is added to the tower, ultimately allowing it to grow to a maximum of ten rows with 160 symbols. The tower persists throughout the Free Spins feature. From the second spin onward, only the bottom one or two rows are removed between rounds. Additionally, from the second spin, up to ten Wilds are added to random positions on the tower at the start of each spin. Players also have the option to buy the Free Spins feature at a cost of 60 times their selected stake.
Conclusion
Crystal Towers by Big Time Gaming delivers a sleek and visually striking slot experience, combining a futuristic aesthetic with dynamic gameplay mechanics. The expanding tower, cluster pays system, and evolving free spins feature offer a unique twist that sets it apart from traditional grid slots. While its high volatility may not suit all players, those who enjoy innovative formats and bold design will find Crystal Towers a refreshing and engaging addition to BTG’s portfolio. Be sure to try out this game on launch and check out our exclusive casino offers.
