So for the last few years I've been running my underworld game with a mashup of Yoon-Suin, Stars Without Number, Hulks & Horrors and Vornheim. Are there any more titles resources I should consider? The system I'm using is sort of a house ruled Swords & Wizardry so most things can be made to work.
The party took a very dangerous path and pressed through some resistance without the resources to overcome it, so half of them died last session. Their risky path worked for the survivors though as they reached their destination. One or two of the survivors are also going to retire retire from dungeoneering as the relative safety of the new area resolves a bunch of their goals and they have enough loot to set up lives in the settlement they were seeking out.
So it's a good time to reevaluate the materials I use and maybe add some resources as a new chapter in the game is beginning.
There's a lot of RPGPundit Presents (https://www.drivethrurpg.com/browse/pub/32/Precis-Intermedia/subcategory/126_28809/RPGPundit-Presents?test_epoch=0&page=1) issues (the Last Sun ones) that have that kind of thing.
Suggested titles: Hipster Elves, the Frantabulous Robot Generator, Mutant Hordes of the Last Sun, Miscellaneous Wonders of the Last Sun, and if you're looking for adventures try The Saga of the Green and Blue Mutant Chiefs, the Great Tree Druid, and At The Darkness.