Features
Additional features available in 155.io games
Beyond the core betting API, 155.io offers additional features to enhance player engagement and retention.
Client Integration
Iframe Events
Bi-directional postMessage communication between the game and your platform
Mobile Apps (WebView)
Run the games inside a native iOS or Android app
Player Engagement
Lightning Rounds
Random boosted rounds with increased multipliers
Streak Multipliers
Win and loss streak bonuses for enhanced engagement
Player Levels
XP-based progression with permanent multiplier boosts
Daily Check-in
Streak-based rewards and win multipliers
Rewards & Promotions
How Boosters Affect RTP
A Lightning Round scales the payout multiplier, so its contribution to RTP is multiplicative on the base figure, not a flat percentage-point addition. It also differs per selection, not merely per game: each tier boosts only the options inside its own eligible pool, so an option outside that pool gains nothing from that tier, and a bet covering more of a pool (forecast, tricast) gains proportionally more than a single-selection bet. Some games have no Lightning Rounds configured at all — Coin Flip and Footfall — so their effective RTP equals their base RTP.
Published Effective RTP figures are quoted at player level 0 and cover Lightning Rounds only. Streak Multipliers, Player Levels and Daily Check-in add further on top where a game offers them.
Per-selection figures and the full derivation are in Game Rules §4.
Feature availability may vary depending on your integration type and agreement. Contact us to learn more.