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3 Oaks Gaming released this title in January 2024 with a proposition unlike traditional slots: it completely eliminates the base game and concentrates all the action in the respin mode. The Hold & Win mechanic becomes the sole path to real prizes.
Provider
3 Oaks Gaming
RTP
95.75%
Max Win
500x
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This is a slot that dispenses with the conventional structure of symbols and paylines. The 3×3 reel grid does not generate winning combinations during a normal spin. The objective is to align three bonus symbols on the centre line to activate the respin round, where 100% of the game’s winning potential is concentrated.

The player spins the reels looking solely for three bonus symbols aligned horizontally on the middle row. There are no prizes outside the special feature. Once triggered, the symbols that started the round lock in place and three respins begin. Each new symbol that lands resets the counter to three. The feature ends when the respins run out or when all nine spaces are filled.

During the respins a fourth row is enabled above the standard reels. This additional row houses modifier symbols that do not appear in regular play. Multi Up multiplies the values on the reel below, while Super Multi Up affects all visible symbols. Coin Up transforms common coins into higher-value versions, reaching as high as Mystery Jackpot. Super Coin Up applies the upgrade globally.

Regular coins carry random values between 1x and 5x the stake. Sticky Coins work the same way but remain locked in position until the bonus triggers. Jackpot Coins bring fixed prizes: Mini (10x), Minor (20x) or Major (50x). The Mystery Symbol transforms into any other except Sticky Coin. The Mystery Jackpot Symbol reveals one of the three jackpots. Coin Collect adds up all values present and stays locked until the end of the round.

The theoretical return to player is set at 95.75%, below the usual average of 96%. The provider does not specify the volatility level, although testing shows frequent bonus activations with moderate prizes. The maximum win reaches 500x the stake when all nine positions are filled, unlocking the Grand Jackpot.

Accepted bets range from €0.10 to €50 per spin. After selecting the amount, the reels spin in search of the three aligned bonus symbols. There is no payline selection strategy or coin adjustment because the game operates with a single configuration. Your casino account must be verified and funded before starting a real-money session.

The game includes a direct bonus buy for 40x the stake, starting the respins with three random symbols from Coin, Mystery or Jackpot. There is an enhanced version for 75x that guarantees higher-value starting symbols. Multipliers accumulated during the round are applied at the end to the total collected. The Mini, Minor and Major jackpots pay out instantly when the corresponding symbol appears.

Licensed operators that carry the 3 Oaks Gaming catalogue offer direct access from the slots section or via the internal search bar. It is advisable to verify that the site displays valid regulatory seals and recognised payment methods. Platforms usually include a demo version without registration so you can try the mechanic before wagering real money.
| Casino | Welcome Bonus | Minimum Deposit |
|---|---|---|
| 1win | 500% welcome bonus + free spins | €1 |
| Piper Spin | 100% up to €2,000 + 150 free spins | €10 |
| WinShark | Up to €1,000 + 300 free spins | €10 |
| Turbo Wins | 200% up to €20,000 + 50 free spins | €10 |
| Spin Macho | €10 |

Built in HTML5, the game runs in mobile browsers without additional downloads. It works on smartphones and tablets running iOS or Android, automatically adapting the interface to the screen size. Performance is stable on 4G or Wi-Fi connections. There is no native app – all access is via the casino’s responsive website.

This development studio specialises in Hold & Win mechanics, with dozens of similar titles in its portfolio. The company operates with third-party testing certifications to guarantee randomness in results. Its focus on a single genre has allowed it to refine respin systems and progressive modifier mechanics.

Coin Up: Hot Fire shares the base structure but incorporates fire-themed symbols and adjustments to modifier appearance frequencies. Coin Up: Lightning keeps the 3×3 grid and adds different visual effects along with minor variations in the paytables. All versions maintain the 95.75% RTP and the 500x maximum win.

The random number generator has been audited by accredited independent laboratories in the gaming industry. The outcome of each spin is unpredictable and cannot be manipulated by either the casino or the provider. The operator’s licence ensures that player funds are segregated and protected. Your game history remains available for review in your personal account.
No. The base game does not generate payouts. All prizes come exclusively from the respin round.
The standard option requires 40x the stake. The enhanced version with higher-value symbols costs 75x.
Yes. If several Multi Up or Super Multi Up symbols appear during the same round, their values are multiplied together before being applied to the final total.
€0.10 per spin. The maximum allowed is €50, although some casinos may set their own lower limits.