
Free
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About
Build your team and set out on an endless expedition.
Auto Arena 3D is a single-player 3D auto battler where you recruit and position units to create your own expedition party. Plan before combat, then watch your units fight with their own attacks and skills.
BUILD A TEAM THAT CHANGES THE BATTLE
Reroll the shop to recruit the units you want. Combine traits and equipment, merge matching units to raise their star level, and discover new team combinations with hero augments.
UNCOVER THE SECRETS OF A KINGDOM IN PERIL
Explore eight regions, from a royal banquet hall to a frozen throne. Discover distinct battlefields, face powerful bosses, and follow the story through dialogue and comics.
VENTURE DEEPER INTO ENDLESS EXPEDITIONS
Challenge stronger enemies as you descend into the depths. Manage fatigue, rotate your team, and use the Memory Shards you earn to prepare for your next expedition.
COMMAND AT YOUR FINGERTIPS
Drag units into position and give them equipment. Press and hold a unit to inspect its stats and skills.
Supports Korean, English, and Japanese.
Progress is stored on your device. User accounts and cross-device cloud synchronization are not available.
Support: alsgudrla799@gmail.com
AI USE
Some illustrations and music were created using generative AI. AI tools also assisted development. The game includes pre-made images and audio; it does not generate AI content during play.
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What's New in Auto Arena 3D
1.2.1
October 12, 2026
• Normal Expeditions now allow at most one enemy 3-star Guardian per battle, including boss escorts and reinforcements. • Stage 7 boss health now scales with expedition difficulty. • Replaced the Stage 6 world-map circus tent with a new model.
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