iSoftBet released Cash Lab Megaways in March 2023 with a mad-scientist theme built around an unusual grid: six vertical reels flanked by two horizontal tracker reels — one above and one below reels 2 through 5. Those trackers push maximum symbol positions on the inner reels from six to eight, producing a 6-8-8-8-8-6 layout and up to 200,704 ways to win across our Megaways titles. Bets run $0.20 to $20. RTP is 96% with a 20,000× maximum win and high volatility throughout.
Theme and Design
The setting is a cluttered laboratory with a red-haired scientist stationed to the left of the reels and a tube of bubbling yellow liquid to the right. The two horizontal tracker rows are visible above and below the main reel section — an unusual visual layout that immediately signals this is not a standard six-reel Megaways setup. Symbol paytable runs from laboratory instruments down to standard card ranks for the low end.
Base Game Features
Cascading wins remove winning symbols and drop replacements, enabling consecutive wins on a single spin. The Max Megaways modifier can trigger randomly, locking all reels to maximum height for 200,704 ways on that spin.
The tracker rows enable the game’s two signature base-game mechanics. Wild Link fires when wild symbols land on the top and bottom tracker in the same reel column simultaneously — the entire vertical reel between them converts to wilds. Gold Link upgrades that result when at least one triggering wild is a Gold Wild: the full-reel wild receives a multiplier guaranteed to exceed the total symbol count on that reel (a reel with eight symbols receives at least 9×). Both features also activate in free spins. The tracker-alignment concept is shared with Tyrant King Megaways, though Tyrant King uses a single tracker row for Wild Tyrant Respins rather than the dual-row Wild Link trigger.
Free Spins and Multipliers
Four, five, or six scatter symbols trigger 10, 15, or 20 free spins. The round opens with a sticky wild on the top tracker reel and a win multiplier at ×1, rising by one per cascade with no cap and no reset between spins.
Sticky wilds behave in a specific way: when one participates in a win — whether through Wild Link, Gold Link, or a standard combination — it cascades off the reels but returns to the same position for the next spin. It is not permanently lost on wins.
The LINK collection system runs throughout free spins. L, I, N, and K symbols collect in a meter above the grid; completing LINK awards two extra spins and places a new sticky wild on the opposite tracker from the previous one, alternating top and bottom with each cycle. The meter resets and starts again. As stickies accumulate, they eventually occupy matching columns on both trackers — at which point Wild Link fires on those reels every spin without new wilds needing to land. The unlimited multiplier compounds against these persistent wild reels as the bonus progresses.
Our Verdict
Cash Lab Megaways is structurally distinctive within iSoftBet’s Megaways lineup: the dual-tracker grid is the mechanical precondition for Wild Link, and the Gold Link multiplier floor — always exceeding the reel’s symbol count — gives the feature a quantifiable minimum rather than pure randomness. The 1-in-304 trigger frequency and 20,000× ceiling reflect a genuinely high-volatility math model. At $0.20 minimum it qualifies among slots with low minimum bets, though variance rather than bet size defines the experience. For more from this developer, see iSoftBet’s Megaways catalog.
