Monster Books RPG Bestiaries - Tome of Horrors & Creature Collections - Open Gaming Store

Comprehensive Monster & Creature Sourcebooks for Tabletop RPGs

Discover the ultimate collection of monster books, bestiaries, and creature compendiums for your tabletop RPG campaigns. From classic fantasy beasts to exotic encounters and psionic horrors, our Monster Books collection brings Game Masters an unparalleled arsenal of adversaries, allies, and otherworldly beings to populate their worlds.

Essential Bestiaries & Creature Collections

Build your monster library with comprehensive sourcebooks like The Tome of Horrors Complete, the definitive bestiary featuring hundreds of creatures for Pathfinder campaigns. Expand your options with Fifth Edition Foes for 5E games, or explore the Psionic Bestiary for mind-bending psychic creatures.

For GMs seeking variety, Book of Monster Templates and 101 Not So Simple Monster Templates provide frameworks to customize and enhance any creature in your campaign.

Specialized Monster Sourcebooks by Type

Shadow & Planar Creatures: Explore darkness with Book of Beasts: Monsters of the Shadow Plane and Dark Fey for sinister fey encounters.

Exotic Encounters & Unique Creatures

Campaign Setting Monster Books

Monster-Focused Bundles & Value Collections

Supporting Resources

Whether you're running Pathfinder, D&D 5E, or other d20 systems, our Monster Books collection provides the creatures, templates, and inspiration to challenge your players and bring your world to life.

Monster Brief: Dark Elves

Monster Brief: Dark Elves

Regular price $3.00 CAD

Regular price Sale price $3.00 CAD
Monster Brief: More Dragons

Monster Brief: More Dragons

Regular price $3.00 CAD

Regular price Sale price $3.00 CAD
Monster Brief: Halloween Horrors

Monster Brief: Halloween Horrors

Regular price $3.00 CAD

Regular price Sale price $3.00 CAD
Mythic Monsters: Oozes Too - 13 More Mythic Oozes for Pathfinder RPG | Legendary Games

Mythic Monsters: Oozes Too - 13 More Mythic Oozes for Pathfinder RPG | Legendary Games

Regular price $11.00 CAD

Regular price Sale price $11.00 CAD
Rogue Mage Creatures of Darkness 1: Spawn

Rogue Mage Creatures of Darkness 1: Spawn

Regular price $3.00 CAD

Regular price Sale price $3.00 CAD
Forces of Darkness - Zunirei of the Thousand Eyes

Forces of Darkness - Zunirei of the Thousand Eyes

Regular price $8.00 CAD

Regular price Sale price $8.00 CAD
Monster Brief: Dragons

Monster Brief: Dragons

Regular price $3.00 CAD

Regular price Sale price $3.00 CAD
Player Races: the Dark Elf

Player Races: the Dark Elf

Regular price $3.00 CAD

Regular price Sale price $3.00 CAD
Monster Brief: Goblins

Monster Brief: Goblins

Regular price $3.00 CAD

Regular price Sale price $3.00 CAD
Monster Brief: Dungeon Dwellers

Monster Brief: Dungeon Dwellers

Regular price $3.00 CAD

Regular price Sale price $3.00 CAD
Mythic Monsters: Mythos - 13 Lovecraftian Creatures for Pathfinder RPG | Legendary Games

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Mythic Monsters: Mythos - 13 Lovecraftian Creatures for Pathfinder RPG | Legendary Games

Regular price $7.00 CAD

Regular price ~~$11.00 CAD~~ Sale price $7.00 CAD

Sale
The Manual of Mutants & Monsters: Infected Zombie

The Manual of Mutants & Monsters: Infected Zombie

Regular price $2.00 CAD

Regular price Sale price $2.00 CAD
The Manual of Mutants & Monsters: Nuclear Toxyderm

The Manual of Mutants & Monsters: Nuclear Toxyderm

Regular price $2.00 CAD

Regular price Sale price $2.00 CAD
Book of Beasts: Monsters of the Great Druid (13th Age Compatible)

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Book of Beasts: Monsters of the Great Druid (13th Age Compatible)

Regular price $4.00 CAD

Regular price ~~$6.00 CAD~~ Sale price $4.00 CAD

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Exotic Encounters: Carbuncles

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Exotic Encounters: Carbuncles

Regular price $1.00 CAD

Regular price ~~$2.00 CAD~~ Sale price $1.00 CAD

Sale
Exotic Encounters: Froghemoths - Free Pathfinder Monster Supplement

Exotic Encounters: Froghemoths - Free Pathfinder Monster Supplement

Regular price $0.00 CAD

Regular price Sale price $0.00 CAD

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Comprehensive Monster & Creature Sourcebooks for Tabletop RPGs

Essential Bestiaries & Creature Collections

Specialized Monster Sourcebooks by Type

Exotic Encounters & Unique Creatures

Campaign Setting Monster Books

Monster-Focused Bundles & Value Collections

Supporting Resources

Collection: Monster Books

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