Ram: As I said at the start of this post, Trophy Gold is great. The game is mechanically interesting and novel, while remaining quite simple. What I love about the game is that it’s a little bit messy when it comes to what it’s about. It’s not trying to a Story Game or an OSR game. Trophy Gold is very much its own thing, and all the better for it.
Trophy Loom is a setting book. It's not required; just like you don't need a Forgotten Realms or Dragonlance book to play D&D 5e.
Trophy Dark is a system for one-shots. The book includes a bunch of adventures. The PCs are expected to be irrevocably changed, "lost" to the horrors of the world, or dead by the end of the session.
Trophy Gold is for campaign style play. The PCs are more likely to survive and return to town at the end of a session. There's a few more mechanics than Dark, but both are rules-lite. The book comes with a few adventures.
The tone and genre for both games (and the setting book) is dark, gritty, dangerous low-magic, late-medieval/early-renaissance fantasy.
Edit to add a content warning: horror is a main theme. And body horror is a big part of many of published adventures.