Here is a list of the top 5 casinos offering on-going tournaments. These are all available to USA players.

Go Casino: First time depositors will get 4 free entries into an exclusive Slot Tournaments. In fact, their tournaments have guaranteed prize pools from $30,000 - $75,000 for buy ins as little as $20.

English Harbour Casino: Offers Free Tournament Entries; daily and weekly tournaments on the most popular slot games. Moreover, they have four 100% match worth up to $200 per deposit - free.

VIP Slots: Offers Daily Slot Tournaments and a myriad of bonuses and surprises! And, their number of bonuses are worth up to $777 – free.

Millionaire Casino: Freeroll Slot Tournaments! Every Friday there is a new freeroll slot tournament featuring one of Millionaire’s exciting slots powered by the award winning Vegas Technology software. Entry is free to all registered players to win your share of $5,000!
Millionaire offers Weekend and Mid-Week Slot Tournaments with varying prize pools. Each tournament features a different slot game. Win with your favorite 3-Reel, 5-Reel, 7-Reel, Video and Bonus Slots! Millionaire Casino has three 100% match bonuses worth up to a total of $5000 – free.

Online Vegas Casino: Slot tournaments with the most popular and enjoyable games around! But it would be remiss if we didn’t mention their FABULOUS sign-up bonus feature: 25-200% match bonuses– a total of $5125 in sign-up bonuses!