Core Bingo Round Engine
Credits → cards/Boost/Power-Ups → bingo daub → rewards; all major layers reuse one round engine.
구조 설명
Economy-Content Alignment
Credits are the common session fuel; Gems accelerate choice/recovery; Coins are isolated to Slots.
Recovery Lane
Gifts, Daily rewards, Collection Pass, Pantry Pass, Piggy Bank and PLUS soften Credits/item bottlenecks.
Credits Bottleneck Propagation
Credits shortage reduces round count and simultaneously slows collection, quests, team contribution, tournaments and events.