# How to Prepare and Sell 3D Assets on Game Marketplaces: The Complete Seller's Guide
Most 3D artists leave serious money on the table. Not because their work isn't good enough—but because they ship assets that buyers can't use without extra cleanup. Broken normals, missing LODs, inconsistent naming, blurry previews: these are the reasons carts get abandoned and refund requests pile up. This guide cuts through the noise and gives you a production-grade checklist for preparing, packaging, and listing game-ready 3D assets that actually sell.
1. File Structure and Naming Conventions That Buyers Expect
Before you export a single mesh, get your folder structure right. Buyers on professional marketplaces are often studio pipelines that auto-import assets via scripts. Inconsistent naming breaks those pipelines and generates support tickets—which tanks your seller rating.
Use this structure for every asset pack:
```
asset-pack-name/
├── Models/
│ ├── AssetName_LOD0.fbx
│ ├── AssetName_LOD1.fbx
│ ├── AssetName_LOD2.fbx
│ └── AssetName_Collision.fbx
├── Textures/
│ ├── AssetName_Albedo_4096.png
│ ├── AssetName_Normal_4096.png
│ ├── AssetName_ORM_4096.png
│ └── AssetName_Emissive_4096.png
├── Materials/
│ └── AssetName_Mat.mat
├── Prefabs/ ← Unity-specific
│ └── AssetName.prefab
├── Documentation/
│ └── README.txt
└── Preview/
├── cover.png
├── wireframe.png
└── texture_breakdown.png
```
Naming rules: no spaces, use PascalCase for assets, snake_case for textures with suffixes. Always include the LOD level in the mesh filename. Always pack Occlusion + Roughness + Metallic into a single ORM map—it halves your texture count and every major engine supports it.
2. LOD Requirements and Polycount Guidelines
This is where most amateur uploads fail. Buyers need LODs. Period. A hero prop with 80,000 triangles and no LODs is unusable in a real-time scene without manual work—and most buyers won't do that work, they'll just buy from someone else.
Standard LOD targets for environment props:
| LOD Level | Triangle Budget | Screen Coverage |
|-----------|----------------|------------------|
| LOD0 | 100% (full detail) | > 25% screen |
| LOD1 | 40–50% of LOD0 | 10–25% screen |
| LOD2 | 15–20% of LOD0 | 5–10% screen |
| LOD3 | 5–8% of LOD0 | < 5% screen |
| Impostor/Billboard | 2 tris | Very far |
In Blender, use the Decimate modifier non-destructively to generate LODs, then apply only on export:
```python
import bpy
def add_lod_decimates(obj, ratios=[1.0, 0.5, 0.2, 0.07]):
"""Add Decimate modifiers for each LOD level."""
for i, ratio in enumerate(ratios[1:], start=1):
mod = obj.modifiers.new(name=f"LOD{i}_Decimate", type='DECIMATE')
mod.ratio = ratio
mod.use_collapse_triangulate = True
print(f"Added {len(ratios)-1} LOD modifiers to {obj.name}")
# Apply to selected object
add_lod_decimates(bpy.context.active_object)
```
Always check topology after decimation—Decimate can produce non-manifold geometry on complex meshes. Run Mesh > Clean Up > Merge by Distance and check for interior faces before export.
3. Texture Maps: Resolution, Format, and Channel Packing
Texture quality determines first impressions. Resolution requirements vary by asset tier:
- Hero props / characters: 4096×4096 minimum
- Standard environment assets: 2048×2048
- Small/modular props: 1024×1024
- Trim sheets: 4096×1024 or 2048×512
Always export textures in PNG (lossless) for albedo and normal maps. Use JPG only for assets where buyers explicitly won't need lossless source files. Export your ORM map as PNG—compression artifacts on metallic/roughness channels are visible in-engine.
For Blender baking, here's a reliable ORM bake node setup via Python:
```python
import bpy
def setup_orm_bake_target(mat_name="ORM_Bake"):
mat = bpy.data.materials.new(name=mat_name)
mat.use_nodes = True
nodes = mat.node_tree.nodes
nodes.clear()
# Image texture node for bake target
img_node = nodes.new("ShaderNodeTexImage")
img_node.image = bpy.data.images.new(
"ORM_4096", width=4096, height=4096, alpha=False
)
img_node.location = (0, 0)
return mat
setup_orm_bake_target()
```
Set Bake Type to Combined for albedo, Normal for normal maps, and use custom passes for ORM (AO baked to R, Roughness to G, Metallic to B).
4. Preview Renders That Convert
Your cover image is your conversion rate. A flat-lit turntable render with a grey background will not sell. Study the top-selling packs on any marketplace—they all have the same formula: dramatic lighting, multiple angles, texture breakdowns, and an in-engine screenshot.
Minimum preview set for a professional listing:
- Hero shot – 3/4 view, dramatic HDRI lighting, shadow catcher, white or gradient background (1920×1080 minimum)
- Wireframe overlay – same angle, 50% wireframe blend over solid
- Texture breakdown – flat-lit, albedo / normal / ORM arranged in a grid
- In-engine screenshot – the asset in Unity, Unreal, or Godot in a real scene context
- LOD comparison – side-by-side LOD0 through LOD3 with triangle counts labeled
In Blender, use a three-point light rig with an area light as key (energy 300+), a fill light at 20% key strength, and a rim light behind the asset. Use a grey plane with a Shadow Catcher material for ground shadow. Render at 2× your target resolution and downscale for anti-aliasing.
5. Pricing, Licensing, and Listing Optimization
Pricing 3D assets is part market research, part positioning. Don't race to the bottom—buyers associate low prices with low quality, and the numbers bear this out: mid-tier packs ($25–$60) consistently outsell $5 assets because studios trust them more.
Pricing benchmarks by asset type:
| Asset Type | Low Tier | Mid Tier | Pro Tier |
|------------|----------|----------|----------|
| Single prop (no LODs) | $5–$10 | — | — |
| Single prop + LODs | $10–$20 | $20–$35 | — |
| Modular environment pack | — | $35–$80 | $80–$200 |
| Character + rig + animations | — | $50–$120 | $120–$300 |
| VFX / particle system | $10–$25 | $25–$60 | — |
For your listing title, lead with the engine (Unity, Unreal, Godot), the asset type, and one key differentiator. Bad: "Rock Pack". Good: "Modular Rock Formation Pack – UE5 + Unity, 4 LODs, PBR, 23 Pieces".
Always include polygon counts, texture resolutions, supported engines, and LOD counts in the listing body. Buyers search for these specs, and missing them means missing the sale.
For a streamlined listing and delivery experience, BitSoul's marketplace handles hosting, licensing, and delivery infrastructure so you can focus on creating rather than managing downloads and license keys.
6. Common Mistakes That Kill Sales
- No README: Buyers don't know how to use your asset. Include a one-page README with import instructions for each target engine.
- Embedded textures in FBX: Always ship textures as external files. Embedded textures inflate file size and can't be replaced by buyers.
- Z-up vs Y-up confusion: Blender is Z-up, Unity and Unreal are Y-up. Always export with the correct axis correction (`-Y forward, Z up` in Blender's FBX exporter for Unity; use UE5 preset for Unreal).
- Non-applied transforms: Apply all transforms (Ctrl+A > All Transforms) before export. Scaled objects cause physics and LOD issues in-engine.
- Missing collision meshes: Props need collision. Name them `UCX_AssetName` for Unreal or provide a separate `_Collision.fbx` for Unity's custom mesh collider workflow.
Closing: Ship Assets That Sell Themselves
The difference between a pack that earns $50 and one that earns $5,000 isn't talent—it's preparation. Buyers reward sellers who make their lives easier. Clean file structures, proper LODs, packed textures, and great previews do most of the selling for you.
Start with one high-quality asset pack, document your workflow, and iterate based on buyer feedback. The compounding effect of good reviews and search ranking will do the rest.
Ready to list your first pack? Browse what's already selling—and see what gaps you can fill—at BitSoul's marketplace.
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*This post is part of the Ultimate Guide to Free 3D Game Assets — BitSoul's complete reference for formats, texturing, rigging, optimization, and engine integration.*