Bazaar of the Bizarre: A d100 table which you can roll who sells what with what complication. Obviously system and world independent. Also comes with caravan goods and protection.
Rules of the Game: Setting the baseline for the rest of the publication, mostly AD&D with some modifications like spell levels and magic item strength.
The Singing Caverns: A two level dungeon with encounter table, a tavern, and some encounters that makes you lose faith in fairplay. With some work it could be reworked to other settings and systems, but even without rework it has good ideas. There are also "exits" that are not explained where they lead, potentially allowing GMs to further expand the dungeon.
Philtres & Dusts: A 2 and half page description of magical dusts and concoctions. Personally, I don't put heavy use of these, but might be useful to someone.
Red Mound: A location in the setting "Broken Wastes", small, with some easy encounters, and with a magic item.
Morale & Man: Rules for having combat and non-combat retainers, with morale, price and availability.
The Mysterious Manor: A manor of a dead family, now infested with orcs and goblins, and now absent pirates. In the cellars, there are some supernatural events.
I give it a perfect 4/5.