Lightning Rounds
Random boosted rounds with increased multipliers
Inspired by Lightning Roulette - random rounds trigger with boosted multipliers on selected betting options.
How It Works
At random intervals, a round is designated a Lightning Round. Exactly one betting option in that round receives a multiplier boost on its winnings — the boost multiplies the payout, it is not a percentage added to it.
Lightning Round Tiers
| Tier | Boost (multiplies the win) | Typical frequency |
|---|---|---|
| Common ⚡ | 1.1x–1.5x | ~1 in 3 rounds (every game) |
| Rare ⚡⚡ | 1.5x–3x | ~1 in 25 (marble) · 1 in 60 (CCTV) · 1 in 120 (restricted-pool) |
| Epic ⚡⚡⚡ | 2x–4x | ~1 in 60 (marble) · 1 in 200 (restricted-pool) · 1 in 400 (CCTV) |
| Legendary ⚡⚡⚡⚡ | 3x–5x | ~1 in 200 (marble) · 1 in 600 (restricted-pool) · 1 in 1,000 (CCTV) |
Frequency families: marble = Marble Plinko, Rolling Dunes, Snake, Fast Lane · restricted-pool = Stairpong, Survivor, Fish Tank · CCTV = Rush Hour, Duck River, Snow Run.
Within a tier the factor is drawn at random, weighted toward the smaller value — in the Legendary tier, 3x lands half the time and 5x one time in five. Only one tier can fire per round: tiers are checked rarest-first and the first hit wins.
On Stairpong, Survivor, Fish Tank, Rush Hour, Duck River and Snow Run the three rarer tiers can only boost a restricted set of options, so the rest receive uplift from the Common tier alone. Rush Hour, Duck River and Snow Run's Exact Low and Exact High are never boostable at all, and their effective RTP equals their base RTP. Coin Flip and Footfall have no Lightning Rounds. Per-selection figures are in Game Rules §4.
Tier configuration is a global per-game platform setting and may be retuned. Check the game demo or contact us for current values.
Player Experience
Full audiovisual treatment with lightning effects and rarity-colored glows.
Why This Matters
Lightning Rounds create anticipation and those "big moment" experiences that players remember and come back for. The randomness adds excitement to every round - players don't want to miss a potential Lightning Round, which keeps them engaged longer.
It's the same psychology that made Lightning Roulette such a big hit among gamblers.
Integration Notes
- Lightning Rounds are managed entirely within the 155.io platform
- No additional API integration required from operators
- Round type and boosts are tracked by 155.io
- Win amounts sent to your
/winendpoint already include Lightning Round multipliers
The win amounts in /win requests reflect the final payout including any Lightning Round multipliers. You do not need to calculate multipliers on your side.
Need Help?
Contact us with any questions about Lightning Rounds. Tier frequencies and boost configuration are global per-game platform settings, identical across all operators.