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Work index05 / 11 — Economy

Gacha

RNG roll screen with live drop-rate probabilities, dual currencies, and 1x / 3x / 10x pulls.

Role
UI design, economy UX
Year
2025
Type
Economy
Tools
Figma, Roblox Studio

Overview

The main roll interface with fully transparent odds display directly visible next to pull buttons.

The problem

Burying drop probabilities behind hidden buttons hurts player trust and friction.

Process

  1. 01

    Integrated odds table

    Seven color-coded rarity tiers permanently listed beside the roll buttons.

  2. 02

    Tiered pull increments

    1x for early gameplay, 3x for mid-tier players, and 10x for bulk late-game rolls.

  3. 03

    Separated currency rows

    Standard rolls and premium rolls isolated into dedicated visual rows to avoid accidental currency spend.

Solution

Two-tier roll board with visible odds table, dice theme ribbon, and high-contrast roll triggers.

A roll screen that shows its odds and offers multi-pulls in fixed steps.

Spec

7
Rarity tiers
1x / 3x / 10x
Pull sizes
2
Currencies
Next screen

Gems Shop

Premium currency packs laid out with clear value scaling and honest pricing.

Shop