Warcraft: Durotan: The Official Movie PrequelChristie Golden
Illidan: World of WarcraftWilliam King
Storm of LightNate Kenyon

More Blizzard 

Shooters

First-Person Shooters

Borderlands: The FallenJohn Shirley
Borderlands #2: UnconqueredJohn Shirley
Borderlands #3: GunsightJohn Shirley
 
Countdown to WarAndy McNab, Peter Grimsdale
 
RaptureJohn Shirley
EscalationGavin Smith
 
 
 
Halo: PrimordiumGreg Bear
Halo: SilentiumGreg Bear
 
Halo: GlasslandsKaren Traviss
 

More Halo 

Third-Person Shooters

Aspho FieldsKaren Traviss
Jacinto's RemnantKaren Traviss
Anvil GateKaren Traviss
 
Coalition's EndKaren Traviss
 
The SlabKaren Traviss
RevelationDrew Karpyshyn
 
 
 
AscensionDrew Karpyshyn
RetributionDrew Karpyshyn
 
DeceptionWilliam C. Dietz
 

Action/Adventure and RPGs

Action/Adventure

RenaissanceOliver Bowden
BrotherhoodOliver Bowden
The Secret CrusadeOliver Bowden
 
RevelationsOliver Bowden
 
ForsakenOliver Bowden
Black FlagOliver Bowden
 
 
 
UnityOliver Bowden
God of WarMatthew Woodring Stover, Robert E. Vardeman
 
God of War IIRobert E. Vardeman
 

RPGs/MMOs

The Stolen ThroneDavid Gaider
The CallingDavid Gaider
AsunderDavid Gaider
 
The Masked EmpirePatricia Weekes
 
Last FlightLiane Merciel
The Balverine OrderPeter David
 
 
 
Edge of the WorldChristie Golden
The Infernal CityGreg Keyes
 
Lord of SoulsGreg Keyes