Slotastic Casino Sister Sites

Slotastic may not be listed among the brands here, but several Real Time Gaming-powered casino brands share a similar playbook — big welcome bonuses, crypto-friendly banking, and a focus on slots and classic casino titles. As of August 21, 2025, readers curious about where to park their new-account deposit will find distinct flavors across these sites: from high-percentage slot offers to casino packages geared toward table-game players.

Big bonuses and how they differ

Welcome offers are the headline grabbers. Some sister sites push extremely high percentages with steep maximums, while others split offers by game type.

Online Casino Games Casino promotes a 400% up to $4,000 bonus (code WELCOME1) with a $20 minimum deposit and a 40x wagering multiplier, aimed squarely at high-value slot players. See the full review for details.
Las Atlantis Casino highlights a 280% slots bonus up to $14,000 with a $30 deposit and a 30x multiplier, a very aggressive slot-focused pack.
Las Vegas USA Casino publishes two tiered offers, including 150% up to $3,000 (code IDBVEGAS) and a 400% bonus for slots, keno, and scratch cards — useful if you want category-specific promos.
Silver Oak Casino takes a more conservative approach with a 100% match plus 20 free spins and a 30x wagering multiplier, often appealing to players who prefer lower-risk onboarding.
All Star Slots Casino separates slots and table-game offers, including a 400% up to $4,000 slots bonus (code ALLSTAR1) and a 100% up to $1,000 offer for table games, both with 30x rollover; the slots offer has specific cashout rules and game restrictions, so check terms.

None of these offers guarantee wins. Always read the bonus terms, including game eligibility, max cashout, and wagering requirements, before opting in.

Banking choices: crypto-friendly to classic cards

These sites cover a broad payments spectrum. If you prefer crypto, Online Casino Games Casino supports Bitcoin, Bitcoin Cash, Ethereum, Litecoin, and Tether, along with major cards like Visa and MasterCard. Las Atlantis and Silver Oak accept Bitcoin and USD options, while Las Vegas USA maintains multi-currency support (EUR, GBP, USD) with Neteller and Skrill among the choices. All Star Slots lists a long roster of fiat methods, including ACH, prepaid options, and e-wallets.

If quick crypto deposits and withdrawals matter, prioritize the sites that list Bitcoin or stablecoins. For traditional bank transfers, phone-assisted cashouts, or voucher systems, check the individual support and processing timelines.

Game library and the RTG angle

All listed brands run games from Real Time Gaming, a long-standing software provider dating back to 1998. That means a shared core lineup: classic and modern slot machines, table games, video poker, keno, and scratch cards. If you favor RTG-style mechanics and progressive slots, these sister sites will feel familiar. Learn more about the provider’s history and titles here.

Support, currencies, and user access

Customer care varies by brand. Some offer toll-free phone support in the U.S. and Canada (Silver Oak, All Star Slots), while others rely on email or a combination of email and phone (Las Atlantis). Currency support ranges from USD-only platforms to sites accepting Bitcoin and other cryptos; Las Vegas USA supports multiple fiat currencies including EUR and GBP, which can matter if you frequently move funds across currencies.

Before creating an account, verify support hours, KYC policies, and withdrawal limits to avoid surprises during cashout.

Who each site fits best

If you’re looking for massive slot bonuses and you’re comfortable with higher wagering playthroughs, Online Casino Games Casino and All Star Slots Casino offer some of the largest percentage matches. If you prefer a high cap on maximum bonus value, Las Atlantis’ up-to-$14,000 slot bonus stands out. For players who want simpler match-plus-free-spins combos with phone support, Silver Oak may be a better fit. Las Vegas USA is a solid pick for players who want multi-currency options and multiple welcome packages tailored by game type.

Quick tips before you sign up

Always match the welcome offer to your preferred game types, check the minimum deposit and wagering multiplier, and confirm which games contribute to rollover. If you plan to use crypto, make sure the site’s supported coins match your wallet. Finally, note any game exclusions or cashout caps tied to specific promo codes.

These sister sites offer a range of approaches to onboarding players: from extreme match percentages to straightforward match-plus-spins. Pick the combination of bonus terms, banking options, and support features that fits your play style, then review the full site terms before depositing.