AeternoBlade II: Infinity is an action RPG and the second entry in the AeternoBlade series from developer Corecell Technology Co.,Ltd. This title enhances the original AeternoBlade II with 4K graphical upgrades and refined time-manipulation combat. Players control three distinct characters—Freyja, Bernard, and Felix—each wielding an AeternoBlade with unique temporal powers: rewinding time, stopping time, and manipulating paradoxes. The game demands strategic combat, quick reflexes, and puzzle-solving skills as players navigate visually striking dimensional battles.

The Infinity version introduces new and improved time-combat synergies with revised move sets, alongside enhanced and alternate powers for the three AeternoBlades. Players can customize their play style through over 250 relics and tackle more than 100 puzzle levels. Enemy AI has also been improved, requiring players to learn patterns and solve "combat puzzles" to achieve victory.