Humble Bundle's From Rivers to Fjords is a bundle of Chaosium's Basic Roleplaying books. $18 gets you


Basic Role-Playing - The current version of Chaosium's house system and I think this bundle includes all three published products

CHA-2036 Basic Roleplaying: Universal Game Engine (2023)
CHA-2037 Basic Roleplaying: Gamemaster Pack (2024)
CHA-xxxx Basic Roleplaying: Universal Game Engine: Quickstart (2025)
CHA-2039 Basic Roleplaying: Creatures (2025) - 200 creatures

Rivers of London - an RPG based on Ben Aaronovitch's contemporary urban fantasy novels, all products included in this bundle except for Underground, Overground: The Case File Collection (2026)

CHA-2301 Rivers of London: The Domestic (2023) - 36-page solo adventure
CHA-3200 Rivers of London: The Roleplaying Game (2022)
CHA-3202 Rivers of London: Going Underground (2024) - introductory adventure
CHA-3203 Rivers of London: The Font of All Evil (2024) - introductory adventure
CHA-3204 Rivers of London: In Liberty's Shadow (2025) - sourcebook of the USA plus two adventures
CHA-3205 Rivers of London: Jimmy's Last Dance (2025) - adventure

Age of Vikings - an RPG set in mythic Iceland, 4 current products all in this bundle

CHA-2038 Age of Vikings: The Roleplaying Game (2025)
CHA-2041 Age of Vikings: Gamemaster Screen Pack (2024)
CHA-2044 Age of Vikings: Quickstart (2026)
CHA-PDF Age of Vikings: Cursed Form (2025) - Demo scenario


Both Rivers of London and Age of Vikings are standalone RPGs which is both a benefit of BRP (the system is tailored to the specific game) and a detriment (each game feels like you're playing a variant rather than a universal system).

It's nice that you get all published products to date for each group (with one exception). It's just not that much stuff and only Rivers of London includes a good amount of adventures. I'm ambivalent about buying this bundle.