Witches and War Rigs
Brian BinhThe sandbox setting and its monstrous inhabitants are procedurally generated as you explore the unknown. You can be a mercenary or big game hunter out to kill monsters. You can be an explorer out to map the wilderness or a prospector looking for new natural resources. You can be a scholar seeking to study the ancient ruins or catalog and name newly discovered flora and fauna. (And get XP for doing all of those things!)
The system is simple, familiar, and versatile. There are only two classes: Witch and Warrior. However, there are four spheres of magic with three paths each so a witch could be a holy priestess, an academic elementalist, a primal force of nature, or an infernal warlock who dabbles in necromancy. Be an alchemist wizard who rides a motorcycle off-road into the wilderness to collect samples of rare herbs and the glands of strange beasts.
Warriors are tough combatants with access to a variety of cool gear to face any challenge in the wilderness: machine guns, magical witchlock pistols, silver bullets, sun grenades, a truck full of ammo and hired mercs. Most importantly, warriors can wear a War Rig, a heavy suit of diesel-powered armor that can be tricked out with a load of weapons and accessories: everything a warrior needs to be an army on two legs!
Based on familiar old school game mechanics, but with some new ideas, Witches & War Rigs can be used with most classic adventure "dungeons" you may already have. (If it asks you to "make a Dex check" or "make a Con save vs poison" from a venomous "3HD monster", you can drop it into a W&W game with minimal adjustment.)