Metagaming’s The Fantasy Trip is one of my favorite games of all time. It’s one of the core products that drew me inexorably into the gaming world. Here’s a page with a great number of resources for The Fantasy Trip.
RPG Fantasy
Microlite 74 RPG Tablet Friendly Edition
Microlite 74 is a set of free role playing rules that emulates the original edition of a certain world famous role playing game.
Microlite 81 Complete
Microlite 81 is an old school RPG with the flavor of a certain game released circa 1981. The author writes:
The first (and with luck only) Release Candidate version of Microlite81 Complete is now available for download and comment. Microlite81 Complete is intended to be standard Microlite81 with more complete descriptions of spells, monsters, and magic items and a few extras like an example of play and instructions for GMs which will hopefully make the game more friendly to players with less experience with old school gaming. Microlite81 Complete allows the GM to select which version of the “core game rules” to use (the standard B/X-like rules from Microlite81 or the B/X-like rules with the author’s house rules from the early 1980s added as in Microlite81 Extended).
Dragonraid Christian RPG
Dragonraid is an RPG that was created in the 1980s as a “Christian” alternative to Dungeons and Dragons. According to this article on Uproxx, it encourages a refreshingly different style of RPG play.
New Crobuzon RPG Setting
I’m a big fan of the work of China Mieville. His stories are highly imaginative, and like nothing I have ever read before. Here’s an attempt by one fan to create an RPG background based on his New Crobuzon setting.