Wargaming terrain — the buildings, walls, craters, forests, and scatter pieces that populate a tabletop game board — represents one of the best use cases for desktop FDM printing. The geometry is friendly: blocky buildings and modular wall sections print without supports, complex organic terrain like rocky outcroppings prints reliably with tree supports, and the scale tolerances are loose enough that dimensional precision matters less than aesthetics. The commercial terrain market offers products that range from excellent to expensive-but-mediocre, and the community-created file ecosystem on Printables, Thingiverse, and dedicated stores like MyMiniFactory covers essentially every game system and aesthetic. For wargamers who already own a printer or are considering one, terrain printing is a compelling economic argument: a single Warhammer 40K ruin kit from Games Workshop costs $50–80; equivalent printable files cover the same table space for under $20 in filament.
Material Choices for Terrain
PLA is the most common terrain material and is appropriate for indoor display terrain that does not travel. It paints well, prints easily, and produces clean surface detail. Its weakness in the terrain context is brittleness: thin spires, door frames, and delicate structural details snap under light handling pressure. PLA+ (modified PLA with improved impact resistance) reduces but does not eliminate this brittleness and costs little more. For terrain that stays on a dedicated table, PLA and PLA+ are fine. For terrain packed into transport cases, the brittleness becomes a real problem.
PETG is the preferred material for terrain that needs to survive transport. Its flexibility under impact prevents the snap failures that PLA produces; a thin wall that would shatter in PLA bends and returns in PETG. PETG's higher layer adhesion also means that prints survive the inevitable drop onto a hard floor. The trade-off is that PETG's surface finish is less clean than PLA — more stringing, slightly less sharp detail — and it requires dry storage to maintain consistent print quality. For competitive wargamers who regularly transport terrain to game stores, PETG is worth the modest additional complexity.
Resin printing is increasingly common for wargaming terrain at fine detail scale — 10mm and 15mm scale terrain, detailed scatter pieces, and any terrain where carved stone texture or fine brickwork needs to be legible at close range. FDM produces texture that reads well at arm's length; at 10mm scale the layer lines become visible enough to break the illusion. An MSLA resin printer for fine terrain and a large-format FDM printer for bulk buildings is the combination most dedicated terrain printers converge on.
Scale and Game System Specifics
28mm heroic scale (Warhammer 40K, Age of Sigmar, most skirmish games) uses the largest terrain: standard doorways at 35–40mm interior height, walls at 80–120mm, building footprints that accommodate 25mm and 32mm bases. Files designed for one heroic scale game are usually compatible with others. 28mm realistic scale (some historical wargames) uses slightly smaller doorways and proportions; files are often not interchangeable with heroic scale without rescaling. 15mm scale halves the dimensions and is predominantly played with DBA, FOW, and similar historical games. 10mm is the smallest commonly printed scale and requires resin for detail quality. The Printables and MyMiniFactory file listings typically specify the target scale; downloading without verifying scale produces pieces that are the wrong size for your game system.
Modular terrain systems — interlocking wall and floor sections that reconfigure for different table layouts — are particularly well-suited to FDM printing. The OpenLock system, TerrainCrate, and Dragonlock formats all define clip or peg standards that allow terrain pieces from different designers to interlock. Printing to a single interlock standard produces a terrain library that reconfigures freely, significantly multiplying the value of each print. Files compatible with OpenLock are tagged as such on most terrain file platforms.
Painting Terrain
Terrain painting is faster than miniature painting because detail expectations are lower: terrain reads at arm's length from a moving game, not at 30cm from a stationary display. The efficient workflow is zenithal priming (black base coat + gray spray from above, creating instant shadow/highlight contrast), a dry brush with a mid-tone base color, a targeted wash into recesses, and a final light dry brush for edge highlights. This process produces display-quality terrain in 30–60 minutes per medium building. Batch painting — priming and base coating 10 pieces at once, then adding washes and highlights as a batch — is the standard practice for building a full table of terrain quickly. Aerosol primer and base coats are faster than brush application at scale; Krylon and Army Painter spray primers both work well for terrain with less sensitivity to brand consistency than miniature painting requires.
What to Print First
The most common mistake in terrain printing is starting with the most complex, impressive-looking piece in a designer's catalog. The better path is starting with the modular basics: wall sections, corner pieces, doorways, and floor tiles. These print quickly, build the library that makes a full table, and are easy to paint efficiently. Scatter terrain — barrels, crates, sandbags, rubble piles — fills the board and takes 30 minutes each to print and paint. Hero pieces (the ruined cathedral, the crashed spaceship) come after the baseline is covered and the painter is experienced with the system. Large hero terrain takes 12–18 hours to print, hours to paint, and sits unused if the basic table scatter is not in place.
