Big Bass Vegas Double Down Deluxe is an exciting fishing-themed video slot developed by Reel Kingdom and brought to you by Pragmatic Play. This game operates on an HTML5 engine, making it accessible on Web, iOS, Android, and desktop platforms. Featuring a 5×3 layout with 10 paylines, it boasts a high-volatility math model. The gameplay combines classic Big Bass money collection mechanics with two colored Fisherman Wilds (Blue and Red), dual collection meters, and progressive multipliers during Free Spins. Players can also opt for an Ante Bet to boost their bonus odds, along with two buy features: standard Free Spins and the “Double Down Deluxe” Super Free Spins. The maximum payout can reach up to 5,000× your total bet.
Quick facts
| Title | Big Bass Vegas Double Down Deluxe (software version v1) |
| Developer / Publisher | Reel Kingdom (brand: Pragmatic Play) / Pragmatic Play |
| Release date | 2024‑09‑12 |
| Genre / Theme | Video slot, Fishing, Vegas |
| Reels / Rows / Paylines | 5 × 3, 10 paylines |
| Volatility | High |
| RTP (default) | 96.5% |
| RTP variants | 96.5% / 95.5% / 94.5% |
| Hit frequency (base game) | 12.99% |
| Average spins per bonus | 113 |
| Max win | 5,000× total bet |
| Bet range | 0.10 – 250.00 (multi‑currency) |
| Platforms | Web, iOS, Android, Desktop |
| Free play | Demo mode available |
Betting options & purchase features
Stake & currency
| Minimum bet | 0.10 |
| Maximum bet | 250.00 |
| Currencies | AUD, USD, GBP, Other |
Ante Bet
| Status | Enabled (optional) |
| Cost multiplier | 1.5× |
| Effect | Increases the chance to trigger Free Spins (adds extra Scatters / trigger events). |
Feature buys
| Feature |
Cost |
Seed / Effect |
Notes |
| Free Spins Buy |
100× bet |
Starts as if 3 Scatters landed; awards 15 Free Spins |
Regular bonus entry |
| Super Free Spins (Double Down Deluxe) |
300× bet |
Enhanced bonus mode |
Only 3 Fishermen (per color) needed to level up (vs 4 in regular bonus) |
How the game works
Base game
Spins occur on a 5×3 grid with 10 paylines. Exactly two Scatters can trigger helper effects that attempt to bring in a third Scatter:
a respin-nudge (reels with Scatters step down while others respin) or a hook animation that can pull a Scatter into view. Money symbols (fish) may land but are only collected during Free Spins when a Fisherman Wild is present. Random features can intervene depending on the combination of Fishermen and Money symbols in view.
Free Spins
Landing 3, 4, or 5 Scatters awards 15, 20, or 25 Free Spins respectively. During the bonus, two Fisherman Wilds can appear—Blue and Red. Each collects all Money symbols in view and progresses its own color meter toward retriggers and higher multipliers. When 4, 8, and 12 Fishermen of a given color have been collected, the round awards additional spins and upgrades the color-specific money multiplier.
| Collection level |
Threshold (per color) |
Extra spins |
Money multiplier (per color) |
| Level 1 | 4 Fishermen | +10 | ×2 |
| Level 2 | 8 Fishermen | +10 | ×3 |
| Level 3 | 12 Fishermen | +10 | ×10 |
Super Free Spins (Double Down Deluxe)
In the purchased Super Free Spins mode, level-ups occur every 3 Fishermen of a color instead of 4, following the same sequence of +10 extra spins and money multipliers (×2, ×3, ×10). Both color meters can progress independently; the feature is considered maxed when both reach their third level.
Random features
| Name |
Trigger condition |
Effect |
| Dynamite |
Fisherman Wild present, no Money symbols |
Adds Money symbols to enable collection |
| Hook |
Money symbols present, no Fisherman Wild |
Pulls a Fisherman Wild into view |
| Bazooka |
Fisherman Wild present, nothing to collect |
Transforms all other symbols (except Fishermen), potentially adding Money |
Symbols & paytable
Premium symbols
| Symbol |
2 of a kind |
3 of a kind |
4 of a kind |
5 of a kind |
| Pink speedboat |
0.5× |
5× |
20× |
200× |
| Flamingo |
– |
3× |
15× |
100× |
| Fishing rod |
– |
2× |
10× |
50× |
| Tackle box |
– |
2× |
10× |
50× |
| School of fish |
– |
1× |
5× |
20× |
Low symbols
| Symbol |
3 of a kind |
4 of a kind |
5 of a kind |
| A | 0.2× | 2.5× | 10× |
| K | 0.2× | 2.5× | 10× |
| Q | 0.2× | 1× | 5× |
| J | 0.2× | 1× | 5× |
| 10 | 0.2× | 1× | 5× |
Special symbols
| Symbol |
Where it appears |
Function |
| Scatter (jumping fish) |
Base and Free Spins |
3/4/5 award 15/20/25 Free Spins; two-scatter helpers can attempt to add a third Scatter |
| Fisherman Wild (Blue) |
Free Spins only |
Substitutes for pay symbols; collects all Money symbols; charges the Blue meter |
| Fisherman Wild (Red) |
Free Spins only |
Substitutes for pay symbols; collects all Money symbols; charges the Red meter |
| Money symbol (Fish) |
Base and Free Spins |
Holds values of ×2 to ×5,000; collected only when a Fisherman Wild is present |
Money symbol values
Possible values (× total bet): 2, 5, 10, 15, 20, 25, 50, 100, 200, 500, 5,000.
Math profile
| RTP (default) | 96.5% |
| RTP variants | 96.5% / 95.5% / 94.5% |
| Volatility | High |
| Hit frequency | 12.99% (base game) |
| Average spins per bonus | 113 |
| Max win | 5,000× total bet |
| Estimated rarity of results | ~1 in 2,544,391 spins for max win; ~1 in 168,833 for ≥1,000× |
Internal state model (overview)
Internally, the game tracks state variables such as spin mode (base or free spins), remaining free spins, the number of Blue and Red Fishermen collected, level progression for each color, current money multipliers, and the presence of Money symbols or Fishermen in view. Transitions formalize when helper features may occur (e.g., with two Scatters), when collections and multipliers apply during Free Spins, and how retriggers add spins and upgrade levels. Exact RNG weightings are proprietary and not disclosed.
Responsible play
This game is designed for adult players. Outcomes are determined by random number generation, and no strategy can influence results. We recommend setting personal limits and taking breaks to maintain control over your gaming experience.
