Money Multiplier - Variable Reward Growth Framework

A variable reward mechanic in Indian rummy that, after a wrong-behavior V1, was redesigned around a multi-lever ARPU framework and became an internal playbook.

Games24x7 Senior PM, Growth Charter 2022 8 months

+15% ARPU (new users)

+4% ARPU (existing)

Context

ARPU growth among active users had plateaued at Games24x7. The category relied on static cashback offers and deposit bonuses, which were losing effectiveness with repeat users and becoming increasingly expensive. The goal was to grow ARPU while maintaining retention and cost discipline.

V1 - The first innovation

I proposed and led Money Multiplier, a mechanic inspired by Nir Eyal’s Hooked Model. Users first completed a challenge to earn a multiplier, which then multiplied their winnings if they played and won a follow-up game (typically at a higher entry fee). This shifted incentives from static and entitlement-driven to performance-and-behavior-linked. It was a first-of-its-kind mechanic in the Indian rummy category.

Early data showed revenue per game trending upward. But a deeper cohort analysis surfaced something concerning: games played per session were declining and churn was increasing. Net ARPU impact was close to neutral. The mechanic was optimizing the wrong behavior.

V2 - Reframing the problem

Paused further rollout and communicated the rationale clearly to leadership.
Decomposed ARPU into its fundamental drivers: Games Played, Revenue per Game, and Active Days.
Key insight: different users have different constraints. A single uniform incentive cannot optimize all three levers simultaneously.
Redesigned the system to identify each user’s weakest ARPU lever and personalize incentives to strengthen only that lever (frequency, longevity, or value).
Collaborated with Data Science to automate lever identification and target-setting via predictive models on recent user behavior.
Initially optimized two levers, expanded to all three once complexity and signal strength warranted it.

Result

4% ARPU increase for existing users.
15% ARPU increase for new users.
Meaningful reduction in incentive cost relative to the initial rollout.
Money Multiplier became a reusable internal playbook and mental model for future growth initiatives.

What I learned

Top-line metrics can hide compositional changes. Decompose the metric before celebrating the lift.

Screens

Hooked Model diagram showing Trigger, Action, Variable Reward, Investment — The Hooked Model - the behavioral framework that inspired the mechanic.

Earn Multiplier tab showing a challenge to play 5 games to unlock a 2x multiplier — Step 1 - Earn. Complete a challenge (here, play 5 Points Rummy games) to unlock a 2x multiplier.

Apply Multiplier tab showing earned 2x, 5x, and 7x multipliers ready to apply — Step 2 - Apply. Earned multipliers (2x to 100x) are ready to apply to a chosen game.

Multiplier game starting screen with a 5x Multiplier Game banner — Step 3 - Play. The selected game starts with a 5x multiplier banner visible to the player.

Game result showing 5x congratulations and winnings multiplied to 500 — Step 4 - Win multiplied. Winnings are multiplied at the end (here, ₹100 x 5 = ₹500).