Parthenogonidium Topocentric

"## 2. Core gameplay mechanism (detailed version) ### 2.1 Basic reel rules - **Reel Configuration**: Usually **3 reels × 3 rows** (some versions are slightly different). - **PAYLINES**: Mostly 25 (fixed), score points by matching the same symbols from left to right. - **Betting method**: You can choose different face values (such as $0.01, $0.02, $0.05, $0.10, $0.25, $1), the total bet per spin = face value × number of paylines × bet amount per line. --- ### 2.2 Hold & Spin (locked spin) bonus gameplay This is the most iconic core mechanic of Dragon Link. #### Trigger conditions - **6 or more Orb (Golden Ball) symbols** appear anywhere to enter the Hold & Spin bonus round. #### Reward rules 1. **Initial number of spins**: 3. 2. **Lock and Reset**: - When a new coin symbol appears, pin it to the reels. - Every time a new gold coin appears, the number of remaining spins will be reset back to 3 times**. 3. **Gold Coin Value**: - A fixed amount is displayed on each gold coin symbol (calculated based on the current bet amount). - The words **Mini** or **Minor** will appear on some gold coins, which directly represents the fixed small prize or winning amount. 4. **Grand Prize Conditions**: - If all 15 grids on the screen are filled with gold coins, you will directly receive the **Grand Jackpot** (cumulative jackpot pool). 5. **End of round**: - Calculate the total value of all gold coins, plus the amount of Mini/Minor/Grand prizes that may be hit, and distribute them together. --- ### 2.3 Free Spins Mode - **Trigger condition**: **3 Scatter (scatter symbols)** appear anywhere. - **BONUS CONTENT**: - Get a fixed number of free spins (usually 6~10 times). - **Multiplier** or **Special Wild Expansion** are often added to free games. - In some versions, Hold & Spin can be triggered again in the free game, forming a "dual-layer reward". --- ### 2.4 Progressive Jackpot - **Mini**: Fixed small bonus (varies with bets). - **Minor**: Fixed mid-level bonus (varies with bets). - **Major**: Medium and high prize pool, some versions can be triggered **randomly**. - **Grand**: The highest prize, usually you need to collect 15 gold coins to get it. - **Prize Pool Growth**: Part of the bets from all online machines will go into the prize pool until hit by a player. --- ### 2.5 Special symbols description - **Wild**: Substitutes for any symbol except Scatter and Coins. - **Scatter**: Trigger free round. - **Orb (Golden Orb)**: Triggers Hold & Spin. ## 2.6 Core gameplay flow chart ```mermaid flowchart TD A[Start spinning the reels] --> B{Are 6 or more gold coin symbols appearing?} B -- No --> C [Reward settled on regular paylines] B -- Yes --> D[Trigger Hold & Spin mode] D --> E[Initial 3 locked spin opportunities] E --> F{Are new coins appearing during the spin?} F -- Yes --> G [Lock new gold coins and reset the chance to 3] G --> F F -- No --> H{Is there still a chance to spin?} H -- Yes --> E H -- No --> I [Calculate the sum of all gold coins] I --> J{Do gold coins fill 15 grids?} J -- Yes --> K[Extra Grand Jackpot] J -- No --> L[Total gold coins issued + Mini/Minor award] C & L & K --> M[end of round]"