On DriveThruRPG, there’s a preview of Savage Urth the Role-Playing Game, with a suggested price of $0.00.
Free to Download: Crawling Chaos, a Lovecraftian modern horror
Nyarlathotep is unique in Lovecraft’s pantheon, manifesting not as an alien entity beyond our understanding but as a more human and personal manipulator of our desires and fears.
Free to Download: 15 new Cyberpunk RED cyberdecks from R. Talsorian Games
The Witcher TTRPG and Cyberpunk publisher R. Talsorian Games routinely provide free expansions and supplements.
Free to Download: Everyday Heroes quickstart for Pacific Rim RPG, Kong, The Crow and others
This special quickstart edition has been designed to let you jump into the Everyday Heroes™ RPG and start playing immediately.
Free to Download: Lifepath RPG
The LifepathRPG is a free one-page tabletop roleplaying game by Morrus.
Free to Download: Solo rules for The Scourge of the Scorn Lords
The Scourge of the Scorn Lords is a 100-paged OSR game by Ahimsa Kerp and Wind Lothamer. The game is set in a wasteland of monsters, cannibals and the Scorn Lords.
Free to Download: Steampunk and anime in the Shibuyan Knights quickstart
AshyFeetGames has released a free 30-page quickstart of Shibuyan Knights.
Free to Download: To Change RPG from trans authors and artists
You can download a free demo of To Change from US Ducktape.
Free to Download: Anyworld Quickstart
The Quickstart is 26-pages long and details the core rules and stats that shape characters. Help for the GM is included, and some pre-made characters are also in the download.
Free to Download: Iconic Adventuring System preview
Alea Publishing has a Kickstarter for a deck-building TTRPG in which players build their PCs from cards as they adventure.