Complete LitRPGs:

• Threadbare series (including Small Medium and Dragon Hack) by Seiple (suggested order: trilogies TB1, SM, DH, TB2)
• Limitless Lands by Henegar
• Master Hunter K by From Hell
• World Tree Online by Hooper
• New Game Minus by Lin
• Light Online by Larcombe
• Eternal Online by Reynolds
• Retired S- Rank Adventurer by Wolfe & Falcon
• Life Reset by Kuznits
• Blessed Time and Viceroy's Pride by Plamann
• Towers of Heaven by Milan
• CivCEO by Karevik
• Forever Fantasy Online by Aaron and Bach
• This Trilogy is Broken (a.k.a. This Quest is Bullshit! from Royal Road) by Valentine (a.k.a. Nixia)
• War Aeternus by Dean
• PrimeVerse by Billiau
• Everybody Loves Large Chests by Iliev
• Somnia Online by Hanna
• The Dungeon Alaria by Kern
• Rise to Omniscience by Oster
• The Idle System by Pegaz
• Last Born of Ki'darth by McGowen
• Accidental Traveler (two complete trilogies) by Davis
• Savage Dominion by Chmilenko & Penman
• The Last Warrior of Unigaea and The Feedback Loop by Cooper
• Factory of the Gods (a.k.a. Keldora) by Raizman
• Nova Online by Knight
• Axe Druid by Johns
• Tower Climber and Arcane Kingdom Online by Tanner
• Emerilia by Chatfield
• Euphoria Online by Tucker
• Aether Gate Online by Hultberg
• Chronicles of Ethan (and standalone sequel Overpowered Howard) by Monk
• System Apocalypse™, Adventures on Brad, and Hidden Wishes by Wong
• Combat Codes by Darwin is great, but it's /r/ProgressionFantasy
• Death's Mantle by Cooper
• Space Seasons by Chapman
• Heroic Villain, and Bathrobe Knight by Dean
• Metagamer Chronicles by Hunter
• Fall of the Black Seraph by O'Kelley (a.k.a. The Genesis Game by Locke)
• Afterlife Online by Finn
• The Iron Teeth by Straughan
• Dungeons of Perdition by Basu
• Pangea Online by Rowland
• The Weaponized by Deckard
• Never Die Twice and Kairos by Durand (a.k.a. Void Herald on RR)
• Headshot Online by Siege
• Trinity of the Kairos by Sinclair
• Chronicles of Wycon by Moore
• Abduction Cycles by Cressman
• They Called Me MAD and The Houndsman by Pal
• The Bright Lord by Knowles
• Nora Hazard by Corvin
• Beast Realms by Jones
• Arena Manager by Opo
• Frostworld by Peel
• Magnus by Prime
• Metamorphosis Online by Grey
• Alterlife by Moss
• Underverse by Cajiao
• The Orzare Chronicles by O Toole
• Alpha Physics by Kozlowski
• Legends of Ascension by Hultberg
• Badges of Dorkdom by Hodges
• Star Divers by Landry
• Legendary Farmer by Elizabeth Oswald
• Class Shift by Sean Oswald
• Ten Realms by Chatfield
• The Weight of it All by Thorn
• Phase Shift by Johnson
• Voidbringer Campaign by Hall
• Sky Realms by Osgood
• Cultivator vs. System by Valerios
• Uniworld Online and Glendara Awakens by Brooks
• Freedom Online by Lingard
• Enora Online by Adams
• Harbinger by Keene
• Bad Luck Charlie (a.k.a. Dragon Mage) by Baron
• Apocosmos by Gkirgkiris
• Real- Time Starcommander by Gregory
• Dungeon Realms by Yang
• Death's Favorite Warlock by Dean
• The Game of Gods by Kern
• Tower Apocalypse by Cassius & Tang
• Real- Time Starcommander by Gregory
• Hack, Slash & Burn by Herzman
• Cowboy Necromancer (some novellas to follow) & Tokens & Towers by Cooper
• Apocalypse Gates (and I think other series) by Schinhofen