Series
Only Coins series
Only Coins began in April 2025 when Gamzix fixed its coin-bonus formula to a compact 3x3 screen with Hold and Win play, fixed jackpots, cash collection and sticky mystery symbols. Only Coins adds respins, random multipliers, additive symbols and an energy-style collection system, placing most of its complexity inside the bonus rather than the base grid.
Ranked by Slot Score
| Game | Year | RTP | Volatility | Slot Score |
|---|---|---|---|---|
 Only CoinsGamzix | 2025 | 96.03% | — | 71 |
 Only Coins ExpressLatestGamzix | 2025 | 95.02% | Medium volatility | 61 |
Only Coins Express expanded the layout to 3x5 in November 2025 but retained the fixed jackpots, cash collector, mystery symbols and sticky-symbol logic. Its random-reward feature replaces some of the original's denser collection machinery, while the medium-volatility profile gives the sequel a more explicitly defined risk level.
The payout ceiling remains 2,000x and the bet range stays at 0.1 to 100, so Express changes presentation and bonus pacing rather than headline potential. RTP moves from 96.03% in the original to 95.02% in Express, a more consequential distinction than the wider reel window.