Since the spring, more and more comic publishers have offered up super-cheap collections of comics on Humble Bundle, for the benefit of charities including the Comic Book Legal Defense Fund, the Hero Initiative, and Doctors Without Borders.

You can add Valiant Comics to that esteemed group. Starting Wednesday, the publisher has been offering up collections of its top titles, including Quantum & Woody, Unity, Harbinger, Bloodshot and more. Fans can name their price, help a charity, and get a whole bunch of great comics in the process.

According to a Valiant press release, the 24 graphic novels and comic collections offered up in the deal have a retail value of more than $420, making it the biggest comic offer in Humble Bundle history.

Fans who contribute anything at all get the first two volumes of each of these titles: Archer & Armstrong, Quantum & Woody, X-O Manowar, Harbinger, and Unity. They also get a downloadable version of the 1999 Shadowman video game. Remember that? People who pay more than the average donation, $9.43 as of Wednesday night, get even more: collections of Shadowman, Rai, Bloodshot, Eternal Warrior and Harbinger Wars. Contributing more than $15 will get contributors six collections of classic Valiant comics from the 1990s.

And even if you don't donate, Valiant is giving away one issue of its comics for free, every day that the Humble Bundle offer lasts.

Downloads come in PDF, .cbz, and ePub formats. The offer lasts through Wednesday, October 1 at 11 a.m. Pacific time.

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