What is Free Spin？
Synonyms:
| Chinese Terminology | English Terminology | Description |
|---|---|---|
| 免费旋转 / 免费转 | Free Spin | The most common term, referring to a spin that requires no wager. |
| Free Games | Free Game / Free Play | Used by some game providers to emphasize the nature of a free round. |
| 免费回合 | Free Round | Emphasizes a "single round of free spin," often seen in game rules. |
| 免费局数 | Free Spins Rounds | Used to indicate that a single trigger awards multiple free spins. |
| 奖励旋转 | Bonus Spin | Emphasizes the promotional or bonus nature of the spin without consuming the player's balance. |
| 免费拉霸 | Free Slot Spin | A more colloquial term, commonly used in player communities or promotional campaigns. |
| 额外旋转 | Extra Spin | Sometimes used to denote additional free spins won during an active Free Spin round. |
| 赠送旋转 | Promotional Free Spin | Commonly found in online casino promotions, such as registration or deposit bonuses. |
1. What is a Free Spin?
In most online slot games, players frequently encounter a feature called "Free Spin". It means exactly what it says: a free rotation of the reels that allows players to spin a certain number of times without spending extra chips or balance.
Generally, a Free Spin round is triggered by landing a specific number of "Scatter symbols". For example, if the game rules state that landing 3 or more Scatter symbols simultaneously triggers the feature, the player will then enter the Free Spin mode.
During Free Spin mode, players not only get to play for free, but the game often includes the following special features:
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Multiplier: All winnings are multiplied by $2\times$, $3\times$, or even higher.
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Special Effects: Features like "Expanding Wilds" or "Sticky Wilds" (Wilds that stay in place) help accumulate larger payouts more easily.
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特殊效果：例如「扩展 Wild」、「Sticky Wild（固定 Wild）」等，让奖金更容易累积。
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Retrigger: If Scatter symbols appear again during the free games, additional Free Spins are awarded.
This is why the Free Spin feature is considered the most anticipated part of any slot game, as it typically represents higher winning odds and potential mega jackpots.
2. What is a Scatter Symbol?
A Scatter symbol is a special type of symbol that does not need to align along a specific payline to trigger a win or feature.
Key Features:
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Unrestricted Positions: As long as the required number of symbols (usually 3 or more) appear anywhere on the screen simultaneously, they are valid.
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Feature Trigger: In most games, Scaters are used to trigger Free Spins or Bonus Games.
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Extra Rewards: Some Scatter symbols themselves carry payout multipliers or special rewards.
Example: One team is constantly attacking $\rightarrow$ the player bets on the weaker team to score.
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出现 3 个 Scatter → 触发 10 次 Free Spin
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出现 4 个 Scatter → 触发 15 次 Free Spin
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出现 5 个 Scatter → 触发 20 次 Free Spin + 额外奖金
因此，Scatter 是玩家最期待看到的符号之一，因为它几乎代表着进入「高奖励模式」。
三、Scatter、Wild、Bonus 三大特殊符号比较
在老虎机游戏里，除了 Scatter，还有其他常见的特殊符号。以下是三者的差异整理：
| 符号类型 | Function | Features |
|---|---|---|
| Scatter（分散符号） | 触发 Free Spin 或 Bonus 游戏 | 不受支付线限制，只要出现数量够即可生效 |
| Wild（百搭符号） | 代替其他一般符号，帮助形成中奖组合 | 不能取代 Scatter/Bonus，某些游戏中 Wild 还带有倍数效果 |
| Bonus（奖励符号） | 启动特殊的奖励游戏或迷你游戏 | 触发后可能进入独立游戏画面，奖励通常比一般 Free Spin 更高 |
四、总结
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Free Spin 是玩家最爱的免费旋转功能，通常由 Scatter 符号触发。
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Scatter 的特点是「位置不受限制」，只要数量达标即可触发奖励。
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Wild 是百搭牌，能帮助组合更多连线机会。
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Bonus 则是触发额外游戏或特殊奖励的关键。
这三种符号构成了线上老虎机游戏里最核心的奖励机制，也是玩家能否拿到大奖的关键元素。