InFAMOUS: Second Son, the base game, wasn't really all too polished in terms of its core aspects, primarily the story. InFAMOUS: First Light, the expansion, takes advantage of fleshing out and polishing the core aspects that Second Son failed to achieve. But the main draw of this game is its story.
First Light is a character study on one of the more interesting characters of Second Son, Abigail "Fetch" Walker. It's a personal and compelling story with themes of addiction, manipulation and loss. The story covers Fetch's background, her mind and emotions, as well as the events that lead up to her status in Second Son. It's a concise story that fleshes out its core ideas very well, with great characterization and a compelling plot.
The gameplay is also a lot more fleshed out as you have a much more focused power set - compared to Second Son's multiple power sets that were fun, but some of them lacked consistency and polish. Unfortunately, the side content is still similar to Second Son in that the open world content are still these brief and repetitive side missions with not much value, except there's even less content variety in the open world compared to Second Son. But there is a particular type of side content introduced in First Light, which is a survival arena mode that challenges your skills. It's fun and challenging, sure, but once you get the hang of it and set high scores, it starts to lose its replayable flare a bit.
Overall, First Light is a lot more refined and polished in terms of gameplay, but especially in story. It's a concise story that analyses our main protagonist and fleshes her out in every way, with great writing and storytelling. The gameplay is a lot more focused, but lacks content variety.
