- Lost in the WildsAnne E. Schraff
- Lost in TimeJamie Thomson, Mark Smith
- Lost LuggageColin Brake
- Lost on the AmazonR.A. Montgomery
- Lots of BoysJan Gelman
- Love is Random TooKendall Adams
- Love on the LiftsJill Santopolo
- Lumpy Space Princess Saves the WorldTracey West
- Madame Guillotine: The French RevolutionJon Sutherland, Simon Farrell
- MagehunterPaul Mason
- Magic MasterEdward Packard
- Magician’s Gambit/Wild Goose Chase!Gabe Soria
- MagnaNicole O'Dell
- Maiden of GreenwoldRhondi Vilott
- Make a Simple Wish of Your Very OwnCatherine Daly-Weir
- Make Up or Break UpKate Welshman
- Making the GradeCarl W. Bosch
- Making WavesNicole O'Dell
- Malice from the Middle ValeDavid Sharrock
- Malinkar: Lord Of EnmityJames A. Hirons
- Malivor: Cataclysm's EdgeTroy Anthony Schermer
- ManhuntKen McMurtry
- MarathonGary Smailes
- Marked for DeathJonathan Stark
- MaroonedJames Schannep
- Marquesas
- Mars: You Decide How to Survive!David Borgenicht, Hena Khan
- Mary BowserKyandreia Jones
- Masks of MayhemRobin Waterfield
- Master of AikidoRichard Brightfield
- Master of ChaosKeith Martin
- Master of JudoRichard Brightfield
- Master of KarateRichard Brightfield
- Master of KendoRichard Brightfield
- Master of Kung FuRichard Brightfield
- Master of Martial ArtsRichard Brightfield
- Master of RavenloftJean Blashfield Black
- Master of Tae Kwon DoRichard Brightfield
- Masters of MayhemScott Ciencin
- Masters of the LouvreRichard Brightfield
- Mata HariKatherine Factor
- Maybe Tonight?Birdie Clark
- Mayday!Andrea Packard, Edward Packard
- Mayhem at Magic SchoolGeorge Ivanoff
- Maze of DoomGeorge Ivanoff
- Mean StreetsW.G. Armintrout
- MechanonJamie Thomson, Mark Smith
- Medieval MayhemTimothy Knapman
- Medusa's HeadConnor Hoover
- Menace from the DeepSteve Barlow, Steve Skidmore
- Mental ResilienceRabea Hadi
- MermaidSteve Barlow, Steve Skidmore
- Metal City MayhemJames Wallis
- Metal Heroes and the Fate of RockSwen Harder
- Mickey's Christmas Carol AdventureJim Razzi
- Midnight at Monster MansionSteven Otfinoski
- Midnight RogueGraeme Davis
- Million Little MistakesHeather McElhatton
- Mind BanditsStephen Mooser
- Mine of TormentsDavid Tant