The Lightning Saga is Final Fantasy XIII and its two direct sequels, a trilogy built around the pink-haired soldier Lightning and notable for being one of the series' most divisive stretches. The 2009 original paired a striking sci-fi setting, the floating world of Cocoon, with a famously linear structure and a fast, paradigm-shifting battle system that players either embraced or resisted.
The follow-ups pushed in new directions: XIII-2 added time travel and a more open feel, while Lightning Returns put the heroine on a ticking clock to save souls before the world ended. Across all three the constant is ambition over caution, a willingness to keep reinventing within a single storyline.
A games-only sub-series, and a fascinating case study in a franchise arguing with itself.
The The Lightning Saga (XIII) franchise spans 3 games in the CrossBinge catalog.
Part of Final Fantasy.