James Baldwin has also organize a whole group of LitRPG and GameLit authors to discounted/Free books in their series for a convention and also just to promote their works. There are various time limits on the sales, most from expire 4/20/19, so get them quick.
Void Legion - FREE
https://dl.bookfunnel.com/xv4fqpuc5y
Dragon Seed: (The Archemi Online Chronicles Book 1) FREE
Puatera Online bk 1-3 FREE
The Feedback Loop (Books 1-3) $0.99
Barrow King - $0.99
Accidental Thief - $0.99
Endless Online book 1 - $0.99
Fateseal (Deck of Souls Book 1) $0.99
Arcane Kingdom Online $0.99
Pangea Online: Death and Axes $0.99
Party Hard (Pixel Dust Book 1) $0.99
World-Tree Online (World-Tree Trilogy Book 1) $0.99
Initializing (Somnia Online Book 1) $0.99
Ruins of Majesta: Vol. 1 - $0.99 Starts 4/20-4/25
http://jamesosiris.com/litrpg/?fbclid=IwAR3S_ePuYucyD5CmQlZWyIFI6dIVzWrH3oA4Cjivgy3JNMquk-HARZ18-8U