Roll & Merge Bastion
Dice Merge × Roguelike Wave Defense — Summon, merge, and awaken elemental dice turrets to defend the fortress!
iOS & Android • Free to Play (v1.0.0)Key Features
1-to-7 Star Dice Merge
Drag matching dice on the 4×5 Bastion grid to evolve up to Tier-7 Awakened Star Turrets with shockwave blasts.
5 Elemental Synergies
Combine Crimson Flame AoE, Absolute Frost slow, Thunder Storm chain lightning, Abyss Venom DoT, and Solar Gold crits.
12 Ancient Roguelike Relics
Draft powerful relics every 3 waves to build devastating combinations tailored to each siege.
Blacksmith & Daily Bastion
Collect offline patrol spoils, upgrade 6 permanent fortress stats, and compete in Daily Seeded Challenges.
Frequently Asked Questions (FAQ)
Q. How do I merge and evolve dice towers?
Drag one dice onto another with the same pip count and element on the 4×5 Bastion grid (or tap two matching tiles). Merging two 6-pip dice awakens a Tier-7 Star Constellation Turret.
Q. What are the 5 elemental synergies?
Crimson Flame (65% AoE splash), Absolute Frost (45% slow + crit vulnerability), Thunder Storm (multi-target chain lightning), Abyss Venom (stacking max-HP poison DoT), and Solar Gold (+25% crit chance & bonus silver on hit).
Q. How does the Fair-Play Ad policy work?
Watching any optional Rewarded Ad during a battle (such as 100% Wall Repair + Meteor Revive, Claim All 3 Boss Relics, or Miracle All-Pip +1 Boost) automatically waives the end-of-game interstitial ad.
Q. Can I play offline?
Yes! The entire battle loop, procedural audio synthesizer, and blacksmith progression run 100% locally on your device.
Q. Where is my game data stored?
All game progress is stored locally on your device (SharedPreferences) with zero external server collection. Uninstalling the app removes all local data.