How the slot saves game progress and bonus states
Introduction
It is important for the player not to lose progress: the remaining freespins, accumulated multipliers or the unfinished Hold & Win. Slots use a client-server storage hybrid - modern browser technologies and secure server databases - to instantly restore state after a page reboot or device switch.
1. Session identification
1. Session ID in cookie or URL parameter: when the game starts, the server gives a unique identifier.
2. Authentication tokens: For authorized users, progress is tied to an account, not a browser session.
2. Server state storage
Session Database - All key variables are stored on the server:
3. Client caching
LocalStorage/IndexedDB: Some non-sensitive data (audio settings, visual preferences, minimal counters) is temporarily stored locally to reduce server load.
Service Worker (PWA): caches game engines and static assets, and can save the latest states for offline mode.
4. Recovery after a break
1. When reloading the page: the player goes to the same Session ID - the server returns JSON with all the session parameters, the client plays them in UI.
2. When changing devices (authorized game): the data is linked to an account, so you can start on the tablet from the same moment where you stayed on the computer.
5. Special Cases of Bonus States
Freespins: the server stores the number of remaining spins, the current multiplier and the winnings for them. With each "spin" the counter decreases and the updated result is saved.
Hold & Win/Collection Feature: the list of held characters and remaining Re-spins is in the server state; the customer displays them and blocks regular spin bets.
Buy Bonus: The "purchased bonus" flag is saved until the round is completed, so that when restored, do not re-buy or skip the feature.
6. Safety and integrity
Timestamps and version control: each state record is provided with a time stamp and a game version, which eliminates the substitution of outdated data.
Audit logs: all state changes (buying a bonus, getting freespins, Hold & Win steps) are recorded in log files for the possibility of investigating disputes.
Deduplication protection - When restoring, the client compares the local and server state and takes the most recent or priority to prevent errors.
Conclusion
Slots retain progress and bonus states through a combination of unique Session IDs, server databases, and a secure client cache. This allows the player to safely interrupt and resume sessions on any device without losing accumulated freespins, multipliers, or retained symbols. At the same time, strict version control and audit logs guarantee the integrity and honesty of the gameplay.
It is important for the player not to lose progress: the remaining freespins, accumulated multipliers or the unfinished Hold & Win. Slots use a client-server storage hybrid - modern browser technologies and secure server databases - to instantly restore state after a page reboot or device switch.
1. Session identification
1. Session ID in cookie or URL parameter: when the game starts, the server gives a unique identifier.
2. Authentication tokens: For authorized users, progress is tied to an account, not a browser session.
2. Server state storage
Session Database - All key variables are stored on the server:
- The remaining free spins and their activation counter.
- Current multipliers (for example, accumulated in cascades).
- List of held characters in Hold & Win or Collection Feature.
- Encryption and backup: data is stored in encrypted form, with daily backup to protect against failures.
3. Client caching
LocalStorage/IndexedDB: Some non-sensitive data (audio settings, visual preferences, minimal counters) is temporarily stored locally to reduce server load.
Service Worker (PWA): caches game engines and static assets, and can save the latest states for offline mode.
4. Recovery after a break
1. When reloading the page: the player goes to the same Session ID - the server returns JSON with all the session parameters, the client plays them in UI.
2. When changing devices (authorized game): the data is linked to an account, so you can start on the tablet from the same moment where you stayed on the computer.
5. Special Cases of Bonus States
Freespins: the server stores the number of remaining spins, the current multiplier and the winnings for them. With each "spin" the counter decreases and the updated result is saved.
Hold & Win/Collection Feature: the list of held characters and remaining Re-spins is in the server state; the customer displays them and blocks regular spin bets.
Buy Bonus: The "purchased bonus" flag is saved until the round is completed, so that when restored, do not re-buy or skip the feature.
6. Safety and integrity
Timestamps and version control: each state record is provided with a time stamp and a game version, which eliminates the substitution of outdated data.
Audit logs: all state changes (buying a bonus, getting freespins, Hold & Win steps) are recorded in log files for the possibility of investigating disputes.
Deduplication protection - When restoring, the client compares the local and server state and takes the most recent or priority to prevent errors.
Conclusion
Slots retain progress and bonus states through a combination of unique Session IDs, server databases, and a secure client cache. This allows the player to safely interrupt and resume sessions on any device without losing accumulated freespins, multipliers, or retained symbols. At the same time, strict version control and audit logs guarantee the integrity and honesty of the gameplay.
