Explore Alterra is a tabletop RPG that eschews a character sheet in favor of cards that measure spells, weapons, armor, talents and items. It is a very straightforward system, and an interesting setting.
You can get a free downloadable City of Mist RPG Starter Set. City of Mist has an interesting premise. It’s a noir type setting in which you play a character that is the incarnation of mythic and literary characters. You could be King Arthur, for example, or Little Red Riding Hood.
Dragon Slayers is a playest version of an upcoming free role playing game. The author writes:
Dragon Slayers RPG looks like Savage Worlds but plays like D&D 5e. The goal is to have D&D-style adventuring without the fiddly bits. GMing is easy and the game is great for new players and one-shots. It features step-die mechanics and has inherited a few dirty hippie quirks (abstract equipment, 13th Age style backgrounds). Magic is low-ish powered and mages cast with spell points.
Warrior Poet is an RPG where the players resolve conflict by writing lines of haiku. From the author’s description:
A four-player tabletop roleplaying game set in the final days of the Empire of the Moon. Take on the role of a heartbreakingly beautiful Warrior-Poet and duel using the ancient art of battle-haiku to establish dominance; to protect the Empire from threats within and without; to love, and be loved..
It actually looks like it would be fun for an evening with the right group.
I remember Ysgarth from my role playing days in the late 1970s. The game first was published in 1979. It was one of a number of fantasy rpgs that I remember we tried before finally settling on the Warhammer Fantasy Role Play.
Ysgarth has got a pretty complex system of skills and attributes, but action is resolved on a simple d100 (that is, you roll 2d10s and read them as separate decimals)