Specter is a 2D action game developed with Blair at ZZep Games, built with XNA/MonoGame. Its standout feature is a custom deferred lighting system that adds atmosphere to levels and makes art reuse less obvious.
The lighting engine supports two modes: ambient lights with smooth, gradual falloff for broad color washes across level areas, and effect lights with sharper illumination for highlighting gameplay elements like checkpoints and hazards. Both are rendered in screen-space at half resolution for performance.