A few weeks ago, I picked up the Steam versions of Silverio Vendetta and Silverio Trinity. My reasons in the latter case were pretty self-explanatory... I wanted to read the append after story that Light so cavalierly and cruelly only included with the all-ages version previously only available on the Vita. Considering that the after story append serves as a bridge between Trinity and Ragnarok, as well as giving you what amounts to a four to five hour extension to the true route... I can say it was worth paying for, even though I essentially skipped through the entire game to unlock it.
There are two new append stories included. The aforementioned after-story is one, and the other is Ashley Horizon's origin story. For those who haven't read the main game, this will contain major spoilers.
Basically, it is a brief summary of Ash's life from the time he met the girls at Rain's/Nagisa's family home as a child to the point where he was turned into Hyperion. It has a number of details about his interactions with Dainsleif and some poignant details of his sense of loss and broken self-esteem born from his failure to protect his childhood friends. For those who want a deeper understanding of his life, this story is a decent addition to experience.
The after-story append could have easily become the core of a fandisc for most games. It is extensive (about four-fifths to two-thirds as long as one of the heroine paths) and is action-packed, as well as being chock-full of content of the sort fanboys like me can't help but scream with glee about. (More spoilers below)
Getting to see Fuhrer Valzeride once again pulling victory from the jaws of defeat versus a foe with overwhelming power was glorious. Valzeride as an enemy is terrifying beyond belief, as anyone who played Vendetta can attest to, but there is nothing more reassuring than having him on your side. His unique self-hating hero psychology, with his inherent inability to give up is just as present as always, and the interactions with a certain future antagonist are pretty telling. Anyone who has played Ragnarok will instantly recognize the antagonist of the after-story after a few lines.
I was startled to find that the battle scenes were just as interesting as they were in the main game, and it definitely served as a great addition to the story.
Say what you want about Light, but their tradition of extensive append stories and gaiden stories is one I think more plotge companies should consider imitating. Too bad they went down with Masada's delusions of glory.
Edit: I should note that there is currently no text hooks for the Steam versions of either game, so if you want to use a text-hooker, you'll have to either create an h-code for yourself or beg someone who already knows how. I had a huge headache from the usual Light 'I've got to gather all the rare kanji into a single sentence!' when I was done.
If nothing else, it is worth it to see this.