Living Dead Zombie Rules

Living Dead is a set of free roleplaying rules for the zombie apocalypse.

Contagion Role Playing Game

Contagion is a role playing game of modern horror, in which the forces of Heaven and Hell are fighting for the souls of mankind.

Force 9 Roleplaying Game

Force 9 is science fiction role playing game inspired by Alien and Starship Troopers.

OPUS – One Page Universal System

OPUS is a one page, universal role playing system.

In Darkest Warrens Fantasy RPG

In Darkest Warrens is billed as a minimalist RPG. Trollish Delver Games writes:

IN DARKEST WARRENS is a minimalist fantasy roleplaying game whose rules cover two pages, including a bestiary and introductory adventure. All you need is some six-sided dice, paper, pencils and, of course, a bunch of buddies to play with.

So what do you get?

All the rules you need, including character advancement for campaign play
Five classes: warrior, rogue, barbarian, mage and ranger
A bestiary containing 23 fiendish monsters to throw at your players
Super easy resolution system – all you need is a single d6
A character sheet
An introductory adventure: The Cow of Boburn
Hours of enjoyment in a small package
Print the rules right out and use them for reference at the table. Perfect for a pick-up and play game.

The game is available as a “pay what you want” from Drive Through RPG.