Observatory Wheel
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Prize breakdown
No luck today, try again tomorrow!
Sector
Temple Tumble 10 FS
Sector
No luck today, try again tomorrow!
Sector
Snake Arena 5 FS
Sector
Money Train 5 FS
Sector
Money Train 2 - 50 FS
Sector
40% up to $40
Sector
Bonus Money - $30
Sector
100% up to $30
Sector
50% up to $100
Sector
60% up to $20
Sector
50% up to $20
Sector
50% up to $50
Sector
60% up to $30
Sector
Bonus Money - $10
Sector
70% up to $40
Sector
80% up to $50
Sector
100% up to $50
Sector

Observatory Bonus Wheel

Step by step

How the bonus works

1

Log in

Qualifying players with no account restrictions receive a Wheel spin automatically on login — no deposit required.

2

Find your spin

Your spin is waiting in the Bonus Section, ready to use within 24 hours.

3

Spin the wheel

Spin to reveal your prize — Free Spins, bonus money, or a reload deposit bonus.

4

Receive your prize

Free Spins play at the game's minimum bet; bonus money and reload bonuses are added to your bonus balance.

5

Wager & withdraw

Complete the wagering within 24 hours, then cleared funds move to your real-money balance.

Good to know

Frequently asked questions

Who can take part?

Any registered Slots99 player aged 18 or over with an active account, provided no restrictions have been placed on the account regarding promotions or bonus offers.

How do I get an Observatory Wheel spin?

No deposit is required. A spin is credited automatically to all qualifying players with no account restrictions when they log in. You'll find it ready to use in the Bonus Section.

How often can I spin?

You can use one spin within any 24-hour period, provided a spin is available in your account. Each spin stays valid for 24 hours after it is credited.

What can I win?

The Observatory Wheel has 18 sectors offering a mix of prizes: Free Spins on selected slots, bonus money, and reload deposit bonuses of up to 100%. A small number of sectors carry no prize, so not every spin results in a win.

How does the wagering work?

Wagering depends on the prize. Free Spins winnings must be wagered 10 times, while bonus money and reload deposit bonuses must be wagered 40 times. All wagering must be completed within 24 hours, on games in the Bonus Play category, before any winnings can be withdrawn.

Which games can I play with the bonus funds?

Bonus funds may only be used on games in the Bonus Play category. Once wagering is complete, the remaining funds move to your real-money balance for unrestricted play or withdrawal.

Is there a limit on how much I can win?

Yes, and it depends on the prize type. Winnings from Free Spins and from bonus money prizes are each capped at $500, while reload deposit bonuses are capped at $1,000.

When does the promotion run?

The Observatory Bonus Wheel runs from 30 June 2026 until 30 January 2027. It is active on Tuesdays, Thursdays and Saturdays.

  1. This promotion is available to all registered players holding an active gaming account with Slots99, provided that no restrictions have been imposed on the account regarding participation in promotions and/or receiving bonus offers.
  2. The promotion is valid from 30.06.2026 until 30.01.2027.
  3. The Observatory Bonus Wheel promotion is active on Tuesdays, Thursdays and Saturdays.
  4. A Bonus Wheel spin is credited automatically to each qualifying participant upon logging in to their gaming account. No deposit is required to receive or use the spin.
  5. Each participant may use one available spin within any 24-hour period, provided that a spin is available in the gaming account.
  6. Each spin is valid for a period of 24 hours from the time it is credited.
  7. The Bonus Wheel consists of 18 sectors.
  8. The sectors of the Observatory Bonus Wheel contain the following prizes:
    • No luck today, try again tomorrow! • Temple Tumble — 10 FS • No luck today, try again tomorrow! • Snake Arena — 5 FS • Money Train — 5 FS • Money Train 2 — 50 FS • 40% up to $40 • Bonus Money — $30 • 100% up to $30 • 50% up to $100 • 60% up to $20 • 50% up to $20 • 50% up to $50 • 60% up to $30 • Bonus Money — $10 • 70% up to $40 • 80% up to $50 • 100% up to $50
  9. The stated prize distribution applies to a cycle of 10 000 spins. After every 10 000 Bonus Wheel spins, the prizes are reset using the same distribution.
  10. The wagering requirement for any prize commences at the moment the bonus is activated and a bet is placed using bonus funds, and must be fulfilled within 24 hours of the bonus funds being credited to the gaming account.
  11. All Free Spins granted as prizes are provided at the minimum bet permitted by the respective game provider, unless otherwise specified for a particular bonus. Winnings from awarded Free Spins are credited to the participant's bonus balance and must be wagered 10 (ten) times.
  12. A maximum winnings and withdrawal cap of $500 applies to winnings generated from Free Spins awarded through the Bonus Wheel.
  13. A reload deposit bonus (e.g. "100% up to $30") is calculated as the stated percentage of the qualifying deposit, up to the stated maximum bonus amount. It is credited to the participant's bonus balance and must be wagered 40 (forty) times.
  14. A minimum deposit of $10 is required to activate any reload deposit bonus awarded by the Bonus Wheel.
  15. The maximum amount that may be transferred to the real-money balance from a reload deposit bonus, after the wagering requirement has been completed, is $1,000.
  16. A bonus money prize is credited to the participant's bonus balance and must be wagered 40 (forty) times.
  17. The maximum amount that may be released to the real-money balance from a bonus money prize, after the wagering requirement has been completed, is $500.
  18. All bonus funds obtained through this promotion may only be used to place wagers on the games specified within the Bonus Play category.
  19. The maximum bet permitted while using bonus funds obtained through this promotion is $2.50. This condition applies throughout the entire gaming round, including any gamble/double-up features available in certain games.
  20. Once the applicable wagering requirements have been fulfilled, the remaining bonus funds will be transferred to the real-money balance, allowing the player to place unrestricted wagers or request a withdrawal.
  21. In the event that a participant places bets with real-money funds, triggers Free Spins or a bonus feature within a game, and leaves the round unfinished or in progress for the purpose of subsequently wagering with bonus funds, the granted bonus and any winnings accumulated from it shall be forfeited and removed. The same rule applies where a participant purchases a bonus feature using the "Buy Bonus" functionality and intentionally leaves it unfinished in order to place wagers with bonus funds.
  22. The Bonus Wheel promotion is granted only after the conditions for receiving a spin have been fulfilled and is limited to one specific user, unique static IP address, permanent residential address, telephone number, device used to access the website (including personal computer, laptop, tablet, or mobile phone), debit/credit card, and electronic wallet. In the event of duplication of any of the aforementioned details across multiple gaming accounts, the duplicate account shall automatically forfeit all awarded bonuses, accumulated winnings, and/or any winnings converted into real-money funds, which shall subsequently be removed.
  23. This promotion is not offered or available to gaming accounts that are subject to restrictions regarding participation in promotions and/or receiving bonuses and offers. Slots99 reserves the right to amend the rules of this promotion, cancel it, and/or temporarily suspend it. Any such changes and relevant information will be published on the website.
  24. In addition to these rules, the General Terms and Conditions and the Bonus Terms and Conditions of Slots99 shall also apply.


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