This casino is a sister casino of the other one i think. They alsaw have a promotion without risk. The site of this casino is http://www.captaincookscasino.com.
Now this bonus is diffrent. After you had downlaoded their software and opened an account with them you will have an option of start the free hour of play, you will have 500 euro at the casino for one hour with what you can play everywhere. In one hour you must made at least 100 bets at the casino or else your bonus is lost and all your winnings so keep playing until you are sure you made 100 bets. After one hour you can keep only the winnnings from this 500 euro and have won a minimum of 20 euro over the initial 500.
So if you made 100 bets minimum and have after one hour minimum 520 euro you can withdraw the winnings. The winnings are than in your casino account as a bonus and it must be played 30 times the amount of the bonus before you can withdraw. More info here:

How to begin your FREE hour of play.

Ready to get started? It's really easy but here are some helpful hints to guide you through it.

1. To claim this promotion you will need the casino software. Download, install and register as a real player.

2. The timer will start from the moment you click the Start Free Play button. You will then be given €500 worth of free casino credits and will need to start playing to reach the minimum bet amount within your free hour. (see 3.)

3. You need to place 100 or more bets to be able to transfer your winnings into your REAL casino account, so keep betting until you are sure you have reached this minimum requirement. If you want to quit before your hour is up simply click the link under the timer.

4. The free hour is played on a miniature version of the casino, so you will see a smaller casino loaded in the cruiser when you start, don’t get this confused with the real casino. The games are the same but this way we can display a timer on the left hand side so that you know exactly how much time you have left.

5. If you get disconnected you will need to log back in. The hour of free play will continue to count down while you are logging back in so make sure you are quick!

6. Be sure to play a few different games, there are over 170 games in the casino, who knows what your lucky one will be!

7. When can you claim your winnings? As soon as you have made 100 or more bets and won €20 over the original €500, you will be eligible to claim your winnings into a real casino account.

8. You will need to deposit a minimum of €50 into your casino account in order to claim your winnings.

Terms and Conditions

Play for free, win for real promotion.

1. Players must open a first time REAL account at Captain Cooks Casino during the promotion time period in order to be eligible for this promotion.

2. For the purpose of this promotion, players will be allocated €500 free. This amount cannot be increased or reallocated during the promotion.

3. Players who claim this promotion will have one hour exactly before the promotion ends.

4. Any time required to download games that are available within the software will be counted as being part of the 1 hour allocated in the casino software.

5. The initial €500 is for the purposes of this promotion only and can not be used as part of normal play.

6. In order to qualify to transfer your winnings, you must have completed 100 bets during the promotion. If you fail to meet this requirement, all winnings will be null and void.

7. A minimum purchase of €50 must be made in the player's Real account before winnings from this promotion can be transferred to the Real account.

8. You can claim your free bonus as soon as you have made 100 or more bets and won €20 or more over the original €500.

9. The promotional software must be activated by starting the countdown timer within 7 days of the Real account being registered.

10. The promotional software will automatically be closed after the I hour has counted down. At this point players will be given the option to transfer any winnings they have made.

11. If any winnings are made while using the promotional software, these must be claimed within 7 days. The ability to transfer these winnings will automatically be closed at the end of these 7 days. All outstanding credits will be lost at this point.

12. In the interest of avoiding any confusion related to this promotion and the winnings transferred to the Real account, please be certain to read the following wagering obligations:
Bonus amounts credited to a Player’s bonus account are subject to 30 times play through before they may be cashed in.
Different games played may contribute a different percentage of the play through - up to 100%, towards the required play-through.
The contributing percentages are as follows:
Slots, American Roulette and Parlor Games count 100% towards wagering requirements
Table Poker, all Roulettes excluding American Roulette, Casino War and Sicbo count 50% towards wagering requirements
Video Poker, all Blackjacks except Classic Blackjack, Craps and Baccarat count 10% towards wagering requirements
Classic Blackjack counts 2% towards wagering requirements
13. If you are running short of time at the end of this promotion, ensure that you are able to complete the bet that you are starting. Any pending bets will be deemed to be lost and the funds deducted from your total balance.

14. The wagering requirements (for withdrawal purposes) will start being counted from the time the promotion winnings are added to the casino account.

15. The maximum amount that can be won and transferred into your real account for this promotion is €200. Any amount over that will be null and void.

16. Players who claim their winnings as part of this promotion will be unable to claim the Welcome Bonus.

17. All promotions can only be claimed once per person, household, family, household address, email address, credit card number, or shared computer environment such as a library, workplace, fraternity, university or school.

18. Players who have redeemed this promotion or the 1 Hour Free promotion at a Casino Rewards partner casino, will be required to make a deposit at a partner casino before participating a second time.

Discuss more about this here: http://www.cashtalk.org/forum/index.php?topic=360.msg979#new