The mystical realm of El Dorado serves as the setting for the game, where humans and creatures created by the God of Twilight vie for control over nine powerful temples. Humanity gains an upper hand when King Edouard, gifted with vampire powers by the God of Twilight, transforms many humans into vampires. However, the monsters are quietly plotting, and their resurgence marks the dawn of the vampire era.

Both humans and monsters, created by Twilight's god, have been competing for dominance over El Dorado and its nine powerful temples for centuries. Through the Vampire Hearts ritual conducted by King Edouard, many humans have been transformed into vampires, tipping the scales in the temple war in favor of humans. Yet, signs of clandestine monster activity remain. As night falls, monsters emerge, heralding the vampire age.

One party member, "Touma," uses BG (Blood Gauge) instead of HP and MP. Touma's BG acts as his stamina, but when allies use blood armor skills, which are more potent than standard skills, it depletes his BG. BG regenerates on its own after three turns, so let's strategize during the battle and distribute Touma's blood wisely.

Bats are scattered throughout the dungeon and can be equipped in the game. When equipped, they offer various passive benefits, such as immunity to status effects and increased attack power. It's advisable to occasionally explore the dungeon in search of them.

Characters who consume BG and activate "blood armor" undergo a visual transformation and unlock special abilities exclusive to those in blood armor. These skills not only inflict more damage than regular ones but also provide parameter boosts while attacking. Experiment with different bats using this skill to see the effects. Unravel the mysteries to challenge the nine crucial temples in the Temple War. Solve the puzzles and defeat the monsters before they escape the dungeon.
| App Name | Knights of Grayfang |
| Package Name | kemco.execreate.grevam |
| Version | v1.1.4g |
| Last Updated | Dec 3, 2025, 11:33 PM |
| File Size | 123 KB |
| Publisher | KEMCO |
| Root Required | No |
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