One is the successor to RuneQuest from Mongoose Publishing; the other is a d20 variant/charitable project.

Mongoose’s Legend is the rebranding of RuneQuest II post license-expiration. The presentation has been “restructured” and character creation has been “streamlined and revised”, but otherwise it’s supposed to be 100 percent backward compatible. The core rulebook is also only $1 in PDF form.

The other Legend is published by Rule of Cool. It’s based on d20 but “cinematic”, “smoother”, “familiar”, “new”, “versatile”, “balanced”, “fun”, “familiar”, and “novel”. It’s also being used to raise money for Child’s Play. Through December 9th, pay what you want to download the core rulebook.