I got the opportunity to play Trinity Continuum: Assassins as part of Onyx Path Virtual Convention 2021 and have been waiting to get my hands on the manuscript for months. It easily lived up to what I was hoping for.
TC: Assassins introduces a secret underworld of contract killers. It requires the corebook to play, and breaks the universe into three worlds: Daylight where normal people live, Twlight is the criminal world, and Shadow where Assassins exist. It's an interesting bit of world building and I like how the writers handled it.
In game terms, Assassins are the equivalent of Talents. The key difference, besides Talents operating in Daylight vs Assassins in Shadow, is an Assassin's Masteries (like Gifts) are more focused on the art of killing. The writers do a good job of explaining there's more to the life of an Assassin than going on hit after hit and how to work that into play.
We get new Societies for Assassins, cool new powers, and a new way of playing TC Core. I recommend the book for anyone who already plays TC or anyone who wants to play in a John Wick style campaign. Right now it's easily in my top 3 of the TC gameline.
[5 of 5 Stars!]