In Triangle Strategy, players command a group of warriors led by Serenoa, the heir to the Kingdom of Glenbrook, navigating a complex narrative where player choices significantly impact the outcome. The game features a unique conviction system that influences the storyline based on the player's decisions, with key moments determined by the Scales of Conviction, where characters vote on critical choices.

The storyline of Triangle Strategy revolves around three nations vying for control over dwindling resources, particularly salt and iron, amidst political intrigue and moral dilemmas. Players must navigate alliances and conflicts that shape the fate of the continent of Norzelia.

Triangle Strategy stands out with its multi-tiered battlefields and strategic combat mechanics, allowing players to leverage terrain advantages and elemental interactions to gain the upper hand in turn-based battles. The combination of tactical positioning and environmental manipulation adds a layer of depth to the gameplay experience.