Core Gameplay Tetris: Illustack is an innovative casual competitive game that fuses classic Tetris with roguelike tower climbing. Instead of simply clearing blocks, you'll challenge multiple levels: build a stable tower by rotating, stacking, and clearing blocks, and trigger chain reactions with the unique Equipment System and Bonus Mechanism to break through the realm limit! Game Features Stylized BGM · Full Musicality Custom BGM adapted to multiple genres: the lazy rhythm of sunset City Pop, the electronic excitement of cyber neon, the rock aura of black gold gothic, the exotic beats of South American rainforests, the ethereal tranquility of bamboo forest zen, and more for you to explore…… Multi-Style Level Rotation Unlock more than ten level themes including cyber neon, deep sea abyss, glitch data, vaporwave, black gold rock, and exotic rainforest. Each style switch updates the visual, auditory, and gameplay atmosphere simultaneously—tower climbing is never boring! Roguelike Tower Climbing Challenge Based on the core Tetris mechanism, add roguelike elements such as random block generation, level accumulation challenges, and Combo streak bonuses. Every tower climb is a brand new experience, and high scores can hit the leaderboard to compete with players around the world! Adapted Experience Ultra-simple operation: fully compatible with mouse/keyboard/controller, easy for beginners to get started, and veteran players can perform extreme operations; Lightweight and low-consumption: smooth operation with low configuration, you can easily play a round in fragmented time.