Paylines
10 fixed paylines
BF Games went the velvet-and-gold route with Ruby Joker, and honestly the look works. The 5×3 grid sits in an ornate ruby-red frame over a deep maroon felt with a diamond weave pattern, and the symbols are big glossy fruit machine staples: a flaming red 7, sliced green lime, purple grapes, plums with little golden centers, and watermelon. Blue diamond-shape gems handle the low-pay slot. It's the kind of presentation that says old-school Vegas without leaning too hard on nostalgia.
Mechanically you're looking at 10 fixed paylines, medium volatility, and a default RTP of 96.02% (operators can also configure it down to 92.10%, so check before you play). Max win caps at 3000x the bet, which isn't huge by 2025 standards, though the hit rate of 15% keeps the base game ticking along.
The signature feature is the Joker Wild on reels 2, 3, and 4. One Joker per reel max, and when it lands as part of a winning line it expands to fill the whole column. Standard but satisfying. There's also a Star scatter that pays directly when 3 or more land, and a separate Ruby bonus symbol on reels 1, 3, and 5 that pays when you collect three. Two different bonus payouts on the same screen is a nice touch you don't see often.
And then there's Joker Spins, the tiered ante feature. You can pay extra per spin to guarantee Wilds: 6x base bet for 1 guaranteed Wild, 20x for 2, or 65x for 3. That last tier is brutal on the bankroll, but with three sticky Joker columns the line wins start stacking fast. Wins pay the same whether the ante is on or off, so the math is fair, just expensive.
Is there a downside? Yeah, no Free Spins round and no Buy Bonus for free games. If you want feature-rich modern slots with cascades and multipliers, this isn't that. Ruby Joker is unapologetically classic, and the Joker Spins ante is the only “extra” layer. But for players who like clean fruit-slot pacing with one well-tuned twist, it's a solid pick. Distinct from Joker's Vault, by the way, despite the shared character.