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Before COVID, Californians had access to a plethora of casino gaming options. Vegas was just a few hours away, and if you didn’t feel like crossing the state lines, there were over 60 Indian Casino within the state. 

Make no mistake – most of those options are still available as we enter the final months of this bleak 2020. But the fear of contagion is all too real, especially if you are a senior or someone with underlying health conditions. 

If you are stuck at home this Halloween or Holiday season and looking for ways to get some slots or table game action, online might be your option. 

These are the top 4 California online casinos with bonuses

The four sites on this list all have high-quality bonuses that will give your betting wallet a significant boost. But keep this in mind before you claim a bonus at any of these sites- picking the right offer is just one half of the story, the other one is knowing how to use bonus offers properly.


Bovada is one of the enduring names in American online gaming history. This brand has been serving US players with the best online casino games for well over a decade now. The casino section has over 300 games, including video slots, roulette, blackjack, and poker from known providers like RTG, Betsoft, and Rival Gaming. 

The site also has a sports betting page where you can place wagers on all major leagues, tournaments, and races from around the world. With fast and punctual payments, Bovada has earned the trust of players across the US. This offshore casino exclusively serves Americans. 

Coming to the bonuses, they are another long-standing tradition at this site. The current welcome bonus has been around since 2017! Your initial deposit will be doubled by the casino up to a maximum of $3000 – if you add three grand to your betting account at Bovada as a new player, you will have six thousand dollars to gamble here!


While Bovada keeps a straight face with a plain and professional website, Red Dog is a bit more adventurous. The casino is headlined by its mascot, a friendly and adorable canine in a dapper suit. Online since 2019, this is a relatively new entrant to the US iGaming scene.

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Powered by software from RTG, the Curacao-based casino has excellent gaming features. You can play over 200 slots and table games at Red Dog, both on computers as well as mobile devices including iPhones and Android phones.

New casinos like Red Dog have to go the extra mile to attract players and that is quite evident from the size of their welcome bonus. The casino offers a whopping 225% bonus on your first deposit – with no stated maximum limit! And you can use this offer a total of five times with your initial deposits at the casino.


Tracing its history back to 2007, Sloto Cash is another established casino welcoming players from California and other US states. The casino has had some questionable dealings with player complaints in the distant past but seems to have cleaned up its act in recent years. Like many US-facing online casinos, it is powered by RTG software.

So the gaming experience is all too familiar if you have played at other casinos that accept Americans. You get the famous RTG suite of slots, poker, table games, and keno/bingo games. But this casino also has something unique - special features like a merchandise store, a lifestyle blog, and more. 

Coming to the bonuses, the big one is the welcome offer which combines bonus cash and a lot of free spins. Spread across five deposits, the promo will add a maximum of $7777 to your casino account, along with 300 free spins!


With a striking neon theme, the dark black and green website of this casino stands out in a crowded field. It was launched some time ago in 2014 – you can say that it has passed the test of time – garnering the trust of millions of players in the process. The offshore website calls Curacao its home.

On the gaming front, you get the standard RTG fare, with online play, download, and mobile casino versions. Leaderboard tournaments break the monotony of solo gaming, pitting you against other slots players at the casino.

In the promo department, Uptown Aces have taken a leaf out of the Sloto Cash playbook – the bonus offer for new players here is worth $8888 max, divided across your first six deposits at the casino. The offer also includes 350 free spins with no max cashout limits for some added oomph!

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