Look for documented pixel dimensions and grid size, both gridded and gridless files, compatibility with the way you actually play, a license that covers your use, and maps that progress through a real campaign environment instead of repeating unrelated rooms. Black Lantern Forge map packs currently use 4096 × 4096 PNG files on a 30 × 30 grid, which works out to roughly 136.5 pixels per square, with gridded and gridless versions for VTT, tabletop TV, and physical play.
A DM buys a starter dungeon pack the night before session five. Half the maps are too small to survive a close zoom. The files only come in one grid format. The art style changes from room to room. By the time the session starts, the DM has spent more time fixing the pack than preparing the encounter.
That is the real difference between buying a folder of images and buying a useful map pack. A good pack should remove prep work, not create a new category of it.
This guide covers the technical specs, grid options, VTT workflow, theme progression, licensing, delivery terms, and campaign-fit questions that matter before you buy.
What actually makes a battle map pack worth buying?
You should know the actual pixel dimensions and grid count before buying. Those two numbers tell you much more than vague labels such as “HD” or “4K quality.”
Gridless is flexible for VTT overlays. Gridded is convenient for print, simple displays, tabletop TVs without a software grid, and direct reference.
Consistent dimensions and square counts across the pack mean you can reuse the same setup logic instead of recalculating every map.
The maps should feel like places your party can move through in sequence, not ten images grouped together because they share a palette.
What resolution and file format should you look for?
For screen use, total pixel dimensions and pixels per grid square are more useful than PPI or DPI metadata. A map can say “300 DPI” and still be too small for a large VTT Scene if its actual pixel dimensions are low.
That is the current Black Lantern Forge map density. It is high-resolution, but it is not a universal VTT standard. Foundry, for example, lists 70, 100, 140, and 200 pixels per square as common map grid sizes. Use the map's actual documentation instead of assuming every 4K map uses the same value.
PNG is a strong delivery format for high-quality digital maps because it preserves detail without lossy compression. For some VTT workflows, converting a large opaque PNG to WebP or high-quality JPG can reduce file weight while keeping the map visually strong at play zoom.
Do not buy based on “4K” alone. Look for actual pixel dimensions, square count, and file format. Those numbers tell you whether the map fits your VTT, TV, or print workflow.
Gridded or gridless: which version do you actually need?
You are importing into Foundry, Roll20, Owlbear Rodeo, or another VTT that can draw its own grid. The software overlay gives you control over grid size, color, opacity, and alignment.
You are printing the map, displaying it as a flat image on a tabletop TV, sharing it outside a VTT, or want the square system permanently visible without software setup.
The most useful packs include both. That lets the same map move between a Foundry session, a printed convention table, and a tabletop TV without forcing you to recreate the artwork.
For a deeper breakdown, see Gridded vs. Gridless Battle Maps: Which Should You Use?
How do you judge VTT compatibility before buying?
VTT compatibility is not just a logo list. Most major platforms accept standard image files. The useful question is how much setup the map needs once it is imported.
Foundry lets you configure the grid around the actual pixels-per-square value. Roll20 accepts high-resolution map uploads but currently applies account storage and per-asset limits, so file weight matters there. Consistent source dimensions make both workflows easier even when the exact setup steps differ.
How do you match a map pack to your campaign?
| Pack | Theme | Best For |
|---|---|---|
| Dark Encounter Battle Maps Pack | Outdoor fantasy encounters, forest routes, darker terrain, ruins, and underground spaces | Campaign arcs that move from familiar wilderness into more dangerous territory |
| Shadows Beneath the Tavern | Tavern interiors, back rooms, underground corridors, ritual spaces, arena terrain, and market environments | Urban mystery, crime, roleplay-to-combat transitions, and layered dungeon-style exploration |
A strong pack should let the campaign move forward without visually resetting every time the Scene changes. The environments can become darker, denser, more damaged, more urban, or more ritualistic, but the art and layout language should still feel like one connected arc.
That is the difference between buying maps and buying a usable sequence of campaign locations.
What licensing and delivery terms should you check?
At the current $14.99 price for a 10-map pack, the illustrative cost works out to about $1.50 per map before any taxes or future price changes. The more important value is consistency across resolution, art style, grid versions, and campaign theme.
License terms matter if your game leaves the private table. Current Black Lantern Forge product terms cover personal use, home games, online campaigns, and non-commercial livestreams. Commercial or monetized use requires separate commercial permission.
Delivery matters too. Current Black Lantern Forge map listings use instant digital delivery, and the Shadows Beneath the Tavern product page states lifetime file access. For any seller, check how files are delivered, whether access expires, whether you can re-download later, and whether commercial rights are included or sold separately.
Why do map pack purchases feel like a waste?
A good map pack is not ten pictures of rooms. It is a sequence of places your party can actually move through.
How do you know you bought the right pack?
The real test happens at the table. Did the file import without unexpected conversion work? Did the grid align using the documented square count? Did the map remain readable at normal zoom? Did the pack cover the next few locations in the arc, or did you immediately need to shop for another visual style?
Do not rely on vague resolution labels alone
Needed for predictable VTT setup
Lets one map work across more setups
Check upload and storage limits too
Private, streamed, or commercial use can differ
Look for different encounter roles, not visual duplicates
4096 × 4096 PNG files, documented 30 × 30 grid scale, gridded and gridless versions, instant digital delivery, and environments designed to move through a real campaign arc.
Browse Map Packs →Frequently Asked Questions
What resolution should a D&D battle map pack use?
There is no universal required pixel dimension. Look for enough resolution to stay readable at your intended grid density and zoom level, plus a documented square count. Black Lantern Forge currently uses 4096 × 4096 pixels on a 30 × 30 grid, or roughly 136.5 pixels per square.
Do I need both gridded and gridless map versions?
Ideally, yes. Gridless files are flexible inside VTTs because the software can apply its own grid. Gridded files are convenient for print, tabletop TV displays without a VTT overlay, and direct image sharing. Having both lets you switch formats without editing the source map.
Will these maps work with Roll20, Foundry, Fantasy Grounds, and Owlbear Rodeo?
Standard PNG map files can be used across major VTTs, but the exact import and grid setup differs by platform. Consistent dimensions and a documented 30 × 30 square count make setup predictable. For VTTs that render their own grid, use the gridless version and configure the software overlay to match the map.
Can I use a Black Lantern Forge map pack for a monetized stream or commercial project?
Current product terms cover personal use, home games, online campaigns, and non-commercial livestreams. Commercial or monetized use requires a separate commercial license. Check the specific product terms before publishing or monetizing content that uses the maps.
How many maps should be in a good battle map pack?
The exact number matters less than the role each map plays. Ten maps can cover a strong short arc when they include distinct terrain, encounter types, transitions, and a climax. A larger pack is not automatically better if most of the maps repeat the same composition.
What is the difference between Dark Encounter and Shadows Beneath the Tavern?
Dark Encounter is better suited to wilderness and darker fantasy progression, with outdoor routes, ruins, and underground spaces. Shadows Beneath the Tavern is built for an urban mystery arc, moving through tavern interiors, hidden areas, underground corridors, ritual spaces, arena terrain, and a market environment.
Do Black Lantern Forge map packs include instant delivery and ongoing file access?
Current Black Lantern Forge map listings use instant digital delivery, and the Shadows Beneath the Tavern listing states lifetime access to purchased files. Always check the specific product listing because delivery and access terms can change over time.
Sources
| Foundry VTT | Scenes and Grid Configuration |
| Black Lantern Forge | Map Collection and Current Pack Specs |
| Black Lantern Forge | Shadows Beneath the Tavern Product Details |
