Bitstarz Billion Overview
Bitstarz Billion is a branded fruit slot developed by BGaming exclusively for a single casino platform. Released on 26 April 2021, it runs on a 5x4 grid with 100 paylines and an RTP of 97.10%. Classic imagery fills the reels: fruits, diamonds, bells, horseshoes and red sevens. Bets range from 0.20 to 15 per spin.
What stands out here is the pairing of a very generous return rate with high volatility. That combination is unusual. Most branded exclusives lean on flashy bonus rounds; BGaming went the opposite direction, keeping the feature set lean while pushing the RTP well above the industry average.
Symbols and Paytable
Red Seven sits at the top of the paytable, paying x30 for five of a kind. Only two symbols in the game require just two matching icons to trigger a payout, and the Seven is one of them (x0.1 for a pair). Horseshoe and Watermelon share the next tier at x5 for five, while Grapes return x2. Five low-pay fruits, including Plum, Orange, Lemon and Cherries, all max out at x1.
Two separate Scatter symbols appear on the reels. A Diamond Scatter pays up to x1 for five, while a Heart Scatter awards x0.2 for three. Neither triggers a dedicated free spins round, which some players will find disappointing. The Wild carries a Claddagh ring design and expands across its reel when part of a winning combination.
Symbol Payouts
Scatter
Scatter symbol that pays on 3 symbols anywhere on the reels.
Scatter
Higher-paying scatter symbol that awards wins for 3, 4 or 5 appearances.
Red Seven
Highest-paying regular symbol on the paytable.
Watermelon
Mid-tier fruit symbol with payouts matching the Horseshoe.
Grapes
Lower-mid symbol paying up to x2 for five matches.
Cherries
Low-paying fruit symbol at the bottom of the paytable.
Bonus Features and Gamble Round
Expanding Wilds are the main attraction. When a Wild lands on a reel and contributes to a win, it stretches to cover all four rows. On a 100-payline grid, even a single expanded Wild can connect several pay combinations at once. Symbols also appear stacked, so full-reel coverage of premium icons is possible during the base game.
After every winning spin, the Gamble Feature lets you risk your payout for a chance to double it. The design choice to rely on Expanding Wilds plus Gamble rather than a layered bonus round keeps the pace fast but limits variety. I found the base game can drag a bit without a dedicated free spins mode to break the rhythm.
Bonus Buy Options
Wild symbols expand to cover entire reels, substituting for other symbols to create additional winning combinations.
After any winning spin, players can risk their payout for a chance to double their winnings.
RTP, Volatility and Max Win
97.10% RTP places Bitstarz Billion comfortably above the vast majority of online slots. High volatility means wins arrive less frequently, but the generous return rate offsets some of that variance over longer sessions. Max win is capped at 3,000x the bet.
Compared to BGaming's previous work on broader-release titles, 3,000x feels modest. High-volatility players often expect five-figure multiplier ceilings. Still, the elevated RTP provides a legitimate trade-off, and the slot targets players who prefer steady mathematics over headline jackpot numbers.
