Ranked in these QuestionsQuestion Ranking
Pro Open World Gaming
Specific rules to support open world/sandbox/episodic adventures, including Party Retreat & Chase rules, and random encounter tables based on location rather than level.
Pro Free PDF book
Pro Fast, Gritty Combat
Quick and engaging combat with martial exploits and injuries & setbacks when reduced to zero hp (assuming not dead)
Pro Rules Light
Light rules framework with emphasis on GM rulings
Pro Dark & Dangerous Magic
Every time a spell is used, the caster must test for a Dark & Dangerous Magic effect.
Con Not a new Low Fantasy Setting itself
The free LFG PDF is a rules system for use with your favourite low magic setting, not a new low fantasy setting itself.