13th Age was released 10 years ago as a 'love letter' to D&D. Designed by D&D 3E's Jonathan Tweet and 4E's Rob Heinsoo, it streamlined the game and introduced innovations such as the Escalation Die, and it's One Unique Thing, a trait that every character has which is individual to them.
2nd Edition is now here--streamlined, clarified, backward-compatible, and updated with revised classes, monsters, and more. And, unlike the single book format of the original, this version comes in the form of a 240-page Player's Handbook and a 160-page Gamemaster's Guide.
You can pick up both books for £40 in PDF or £100 in hardcover format, plus dice, a GM screen, and more.
There's a free preview document available (12-page PDF).
Designer Rob Heinsoo spoke to EN Publishing's Jessica Hancock about 13th Age 2E last year on the Not DnD show.