Rainbows End

Rainbows End Sweepstakes Casino Review – What We Expect

Rainbows End Casino is a new sweepstakes casino owned by Big Sky Gaming Limited. This platform doesn’t appear to be affiliated with any of the major players in the U.S. social casino industry. While the official launch is still pending and most features are incomplete, I managed to explore a pre-release version of the platform to get a better idea of what’s coming.

Although most core features are yet to be implemented, I’ve seen mentions of loyalty rewards, free refills, geolocation tech, and a dozen other buttons listed (but not working) on the sidebar.

This is a sneak peek into Rainbows End – the SweepsKings team aims to objectively assess whether the site is worth waiting for based on hands-on tests of every working feature.

Legal States

Without a working link for Terms & Conditions, we can’t even assume where (and when) Rainbows End Casino will be legally available. The standard “Promotions void where prohibited by law” is a legal placeholder, since most U.S. states neither regulate nor outright prohibit sweepstakes casino gaming.

How Rainbows End Social Casino Works

Once I got into the gaming lobby of Rainbows End Casino, I spotted a balance displaying GCs and SCs. This was the first of many confirmations that the site is a sweepstakes casino using a dual currency system.

If Rainbows End plans to follow the tried and tested sweepstakes formula that the majority of available sites use, Gold Coins will be there to help you test new games and play for fun, while playing with Sweeps Coins will allow you to qualify for cash prizes.

However, the site’s minimum daily redemption amount has not yet been confirmed; I’ll share my assumptions regarding this detail while discussing the site’s banking department in the sections below. The exact playthrough requirement for all Sweeps Coins will be listed in the casino’s Sweeps Policy, but the page wasn’t working at the time of testing.

Rainbows End Casino Bonuses

The buttons on the sidebar hint at plenty of promotions in the works. Although the “Promotions” page is yet to be implemented, I’ve seen mentions of a loyalty program called the Shamrock Club, a Refer-a-Friend link, a button named “Free-Refill”, and various Gold Coin packages that contain free Sweeps Coins.

The Rainbows End sign-up no deposit bonus hasn’t been officially announced. While reviewing the platform with a testing account, my balance was loaded with 95,468 Gold Coins and 450 Sweeps Coins.

This may mean that the registration bonus will be 100,000 Gold Coins and 450-500 Sweeps Coins. The extra “zero” hints at Sweeps Coins redemption rates being 100:1 rather than 1:1. Several sites I’ve reviewed used a similar system, such as Fortune Coins.

I can’t even guess what the Referral Program will be like, but the Shamrock Club appears to be a 4-tier VIP program.

Although the actual rewards and perks haven’t been revealed yet, the screenshot above suggests that simply playing games is enough to earn Loyalty Points. I’ll test how this works once Rainbows End goes live, mainly because I need to confirm whether you can earn LPs with Gold Coin and Sweeps Coin play, or exclusively by wagering SCs.

The Free-Refill bonus is a feature that I hope will undergo a major revamp once the site goes live. I doubt they’ll keep the 100 Gold Coin reward, because it would be the smallest daily bonus with unnecessary extra steps (typing your email address) in the current industry.

Similarly, the “Zero Balance” shortcut may be related to a bonus offering free Gold Coins when your balance is empty, but no details have been provided about how it will function.

Rainbows End Casino-Style Games

Based on the games I’ve seen in the lobby and the names of providers displayed on the site, these are the studios that Rainbows End has either partnered with or plans to:

• Fantasma Games
• 3 Oaks Gaming
• Betsoft
• KA Gaming
• Onlyplay
• Relax Gaming
• Wild Gaming
• Ruby Play

Most of these developers specialize in slots, including some Hold & Win and Bonus Buy games. Still, mentions of specific names may indicate deeper coverage, such as Megaways and Jackpots (Ruby Play), or even fish shooters (KA Gaming).

The front page also clearly states we can expect 1,000+ casino-style games upon launch. I wouldn’t be surprised to see minigames, RNG tables, and video poker if the site decides to onboard the entire portfolios of KA Gaming and Betsoft. Currently, the lobby lacks genre-based filters to support such assumptions.

In my second run of researching Rainbows End Casino’s promotions, I spotted a line that also mentions bingo games.

Among the providers advertised on the platform, Relax Gaming is the only one that makes casino-style bingo games.

Rainbows End Casino Banking

Since the platform isn’t live yet, it goes without saying that in-game purchases and redemptions are also not available. Still, Rainbows End Casino’s main website lists several popular methods as accepted instruments, including Google Pay, Visa, Mastercard, Apple Pay, and Bank Transfer.

I couldn’t find any information about whether all supported options are universal methods, or if some of them will be excluded from redemptions. As most new sweepstakes casinos allow users to purchase and redeem with cards, Visa and Mastercard will most likely be universally suited for both. Google Pay and Apple Pay are typically supported as purchase-only methods, while bank transfers tend to be redemption-only options.

Even with a testing account, I had access to the Rainbows End verification page. Full KYC will most likely be required to redeem prizes, while I can only guess that you can purchase GC bundles even before verifying your profile.

From what I’ve gathered, verification will be split into several parts – identity, address, and payment method. Tapping the plus icon next to each verification segment will help you understand which documents are accepted.

If I were to hazard an educated guess about the minimum SCs required for a redemption, I’d say we should expect the standard $100 cap (10,000 Sweeps Coins in this case), purely because many new sweepstakes casinos follow the same pattern.

As for the redemption times, the only unknown element in the equation is the casino’s internal review procedure. Most sites process card redemptions within 1 to 3 business days, mobile wallet redemptions within 48 to 72 hours, and bank transfers between 2 and 5 business days.

Is Rainbows End Casino Legit?

While researching Rainbows End Casino’s owner, I discovered that Big Sky Gaming LLC is listed in the Montana Department of Justice’s database of licensed businesses. However, this address doesn’t match the one listed on the casino site’s footer, and there are 13 pages of brands with identical or similar names.

The pages for General Terms and Sweeps Rules are currently not working. The only inkling of legitimacy in this case is the advertised “no purchase necessary” line.

Furthermore, the free-play bonuses advertised on Rainbows End give me hope that this might be a legitimate sweepstakes casino. I’ll wait to see how Rainbows End will tackle daily logins, first-purchase deals, and mail-in bonuses, as well as the main sign-up offer, before drawing any conclusions about whether the platform is truly free-to-play or if there are any strings attached.

On the downside, the provisional testing account I had access to appears to have submitted redemptions back in April 2025, likely for internal testing purposes as well. This suggests that Rainbows End has been in development for at least six months. While I commend the operator for investing time into building a solid product, I’ve seen similar projects linger in development for ages, only to be abandoned before ever going live.

Rainbows End Customer Support

I saw buttons for several customer support channels, but most of them didn’t work throughout my tests. The Live Chat is literally a button embedded at the footer (as opposed to a floating shortcut that follows you as you scroll).

The “Help” shortcut was likely designed as a portal to the Help Center, but at this time, it simply redirects you to the last working page you visited.

Given that the T&Cs are still missing and the “Contact Us” page doesn’t exist yet, the only support feature with even partial functionality is the Contact Form, as shown in the screenshot above. While it looks basic and, unsurprisingly, doesn’t work at the moment, it does offer a glimpse into how Rainbows End’s ticketing system might eventually function.

Rainbows End Casino UX

Barring the unimplemented bonus offers on the rotating wheel, the UI looks fairly good for a site pending launch. In the top left, you can see your current balance, access the VIP club, or enter the Coin Shop. The sidebar lists a lengthy array of shortcuts (some of which are duplicates), including promotions, transaction history, redemptions, responsible gaming tools, and more.

The center of the page may not be unique in any way, but it functionally tracks. The site appears to have a curated selection of games “For You.” I hope that these are custom picks based on your actual preferences and gameplay, as there’s a separate category of Trending games to highlight the most popular picks among Rainbows End players.

While the game cards were responsive in my tests, the names of specific games and their specs were a bit mismatched, as illustrated above. Still, this looks like a promising feature; being able to see the maximum win, playing limits, and RTP is a huge advantage compared to sites that rarely go beyond onboarding games and letting you play them for free.

Rainbows End Casino Sister Sites

As a site that’s yet to launch, Rainbows End can’t be compared with existing sweepstakes casinos on any front. Still, plenty of up-and-coming sweeps casino sites are worth checking out while you wait for more details about Rainbows End, so let’s take a look at our top picks:

Comparison

How It Stacks Up

Purely based on what’s advertised, I’d say that Rainbows End is looking at a decent spot in the low-to-mid tiers of the industry.

Several payment methods, multiple types of bonuses, good RSG tools, and an interface that looks familiar without outright imitating any well-known brands are the hallmarks of a new sweepstakes casino with good potential.

The sign-up bonus, first-purchase deals, redemption times, the gaming variety, and the actual sizes of regular promotions will undoubtedly make or break Rainbows End.

Our Experts Verdict

I can’t recommend a sweepstakes casino without reading its Sweeps Rules and General Terms first, and unfortunately, Rainbows End has yet to publish these pages.

I don’t even know where the site will be legally available, and without an option to test its bonuses, games, and payment gateways, we’re missing the most vital pieces to objectively conclude whether this is a legitimate upcoming casino, abandonware, or something different.

Our team at SweepsKings will continue to monitor Rainbows End, and we will prepare a comprehensive review once the site is fully operational. Meanwhile, we recommend you play at social casinos we’ve already tested and approved, so browse our list of top sweepstakes casino sites to claim your next free bonus.

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