Ultraviolet Grasslands was Luka Rejec's first larger product on his Patreon and has recently launched on kickstarter. The genre is metal-hurlant-slow-crawl-trading-and-exploring and everything that fits in there. From psionic cats to spectrum satraps to null objects of desire, there is a lot of ... stuff in there without suffocating a referee with too much detail, leaving lots of room for your own stuff. For example, the Ultraviolet Grasslands are the far end of the Rainbowlands, and while there are some tidbits about the various Rainbowlands, it's mostly half sentences or seemingly throw-away remarks that to me feel like an invitation to fill up the gaps and make your own Rainbowlands. Or not, if you're not into that. It's just enough to provide a kaleidoscope of backdrop figments as it stands.
I've been refereeing with the Patreon version for five sessions now and it already is serviceable as is. Most locations fit on a double spread. The setting specific rules are easy and light enough to be bolted on to any game system you want to use (I would recommend using something light and OD&D inspired like Macchiato Monsters or MageBlade! which is what I am using).
What I already built in terms of supporting material
Things I need or want to improve
- Offer the players more ways to interact with the world. Highlight the exploration angle?
- Show off more of Luka's awesome artwork
- Accessing information at the table. I am considering building an index card system. This is obviously not a new idea, I found a blog post covering one way to organize referee information on index cards
- Make the trading / caravan aspect a more organic part of the game without ripping a traveller-trading-simulations sized hole into it.