General Terms

The promotion runs from 00:00 CET 11.09.2026 to 23:59 CET 15.09.2026.
The promotion will happen for 5 days as follows:
- 00:00 CET 11.09.2026 to 23:59 CET 11.09.2026.
- 00:00 CET 12.09.2026 to 23:59 CET 12.09.2026.
- 00:00 CET 13.09.2026 to 23:59 CET 13.09.2026.
- 00:00 CET 14.09.2026 to 23:59 CET 14.09.2026.
- 00:00 CET 15.09.2026 to 23:59 CET 15.09.2026.
The promotion includes a Prize Drop with a total prize pool of €100,000 split into €20,000/day.
To participate in the promotion, players must open LUCKY STAMPS and join/opt in.
The minimum bet required to participate in the Prize Drop is €0.05 or the equivalent in local currency in the LUCKY STAMPS game.
Only bets placed using funds from a participant’s Main Account are eligible for this promotion. Bets placed using funds from the Bonus Account will be excluded from the promotion.
Endorphina reserves the right to cancel or amend this promotion at any time.
Endorphina reserves the right to withhold a prize if the win results from any obvious error, mistake, or technical malfunction (including incorrect game or human payouts), whether caused by machine or human error in any of the participating games.
Endorphina further reserves the right to withhold a prize if, in our opinion, the win results from cheating or collusion with other players.
How XBet Multiplier Works?
The player's bet during the campaign will be multiplied by the xBets multiplier to calculate the reward.
Example: If the player's bet is €0.5, with a drop-triggered multiplier of x100, the reward will be €0.5 × 100 = €50.
The maximum bet considered is €1. Any amount bet above €1 will still be calculated as €1 for the rewards.
Example: If the player's bet is €3, with a drop-triggered multiplier of x1000, the reward will be capped at €1 × 1000 = €1000.

Prize Drop Terms

The total prize pool will be distributed across 5000 prize drops (1000 Prizes Daily), which will be randomly awarded in the LUCKY STAMPS game throughout the campaign.
Any bet placed in the LUCKY STAMPS game may trigger a random prize drop.
Each participant can win multiple prize drops during the campaign.
The remaining number of prizes is updated in real time within the qualifying games’ interface.

Rules for Determining Winners

All cash prizes will be credited to players' accounts automatically after winners are determined.
Cash prizes are not subject to wagering requirements and can be used immediately for betting or withdrawal.