One-Shot Wonders RPG: The Map Library Expansion Pack

Unfold vivid battlegrounds in seconds, sketch dynamic hazards right onto the grid, and bring planar encounters from the Fey Realm and Shadow Realm straight to your tabletop.

The Map Library: Expansion Pack (illustrated by Venatus Maps and published by Roll & Play Press) expands the ENNIE Award-winning Map Library system with 40 brand-new, double-sided fantasy battle maps engineered for instant table readiness. Designed as a direct companion to One-Shot Wonders: Volume 2 while remaining fully compatible with any grid-based fantasy tabletop roleplaying game, this expansion packs 20 durable, foldable sheets into a compact slipcase. Each sheet unfolds to a generous 17 x 22-inch (A2) play area overlaid with crisp 1-inch square grids, eliminating mid-session drawing delays and dropping miniatures straight into richly detailed environments.

The collection balances classic adventure locales—such as bustling coastal harbors, ancient temple sanctums, subterranean dungeons, and elevated treehouses—with otherworldly planar battlegrounds set in the Fey Realm and Shadow Realm for the first time. Every map is finished with a durable dry-erase laminate coating, empowering Game Masters to annotate environmental traps, spell templates, shifting terrain hazards, and hidden secrets on the fly without damaging the artwork. Rounding out the set is a selection of blank and customizable terrain grids for improvised encounters, making it an essential utility kit for both planned dungeon crawls and unexpected party detours.

GM and Adventure Content:

This 40-map expansion set equips Game Masters with table-ready tactical grids for both physical and virtual sessions.

• 40 Hand-Drawn Battle Maps: Detailed, full-color tactical maps illustrated by Venatus Maps, covering classic fantasy dungeons, coastal ports, sanctuaries, and custom blank terrain sheets.
• Fey Realm & Shadow Realm Environments: Dedicated planar battlegrounds featuring glowing fey gardens, twisted shadowscapes, and arcane crossings tailored to One-Shot Wonders: Volume 2.
• Dry-Erase Laminated Surfaces: Wipe-clean protective coating lets GMs draw custom walls, areas of effect, and environmental hazards directly on the 1-inch grid.
• Compact Fold-Flat Portability: Sheets fold neatly down to standard A4 size (8.3 x 11.7 inches) for effortless storage inside standard RPG bags and binder sleeves.

Book Contents:

• 20 Double-Sided Fold-Out Battle Map Sheets (40 Unique Maps Total)
• 17 x 22-Inch (A2) Unfolded Grid Layout with 1-Inch Squares
• Classic Dungeon, Coastal, Temple and Planar Fey/Shadow Realm Maps
• Customizable Blank Terrain and Improvised Encounter Grids
• Protective Collector Storage Slipcase

Book Information:

• Publisher: Roll & Play Press
• Release Year 2026
• Game Type: 5th Edition D&D Campaign Sourcebook
• Age Range: 12+
• Primary Genre: High Fantasy / Planar Exploration / Adventure Anthology