
3D Building Generator for Games
Turn an idea into a stylized 3D game building
Describe it in one sentence. About 2–3 min later you download a stylized 3D game building as FBX or GLB, ready to use in your game. No 3D skills needed.
Make stylized 3D game building
Turn an idea into a stylized 3D game building. The prompts and settings are already done for you.

Prism 3.1: the most detail and sharpest textures, within this template's polygon budget.
~2–3 min · ~8k tris · on a flat ground tile · free to try
Made with this template
The card in the corner shows what went in.



Each example is an actual run of this template at Standard quality, made from a typed idea or a sketch.
From idea to file in about 2–3 min
Type what you want, then wait while 2 AI steps run. Nothing to set up.
- 1Typed“A cosy medieval tavern with a thatched roof”YouYou describe it
Or upload a sketch
- Image Studio2
AIAI draws your ideaImage Studio turns your text or sketch into a clean concept render. The building template stands one building on a flat ground tile, seen from slightly above, so roof and entrance both read clearly. The object is isolated on white so the 3D step sees one clear shape.
- Image to 3D3
AIAI builds it in 3DImage to 3D (Prism 3.1) builds the mesh with a 8,000-face face limit and Fast textures, so it's light enough for real-time use.
- FBX GLB4YoursYou download the file
As FBX or GLB. You can use it however you like.
Import it like any other asset
Drag the FBX or GLB into your project. Scale and texture size are already set for the engine you pick.


Export presets set the format, scale and texture size for each engine.
Fill a level with props before you commit to final art.
Every asset uses the same locked style, so a whole set looks like one game.
GLB opens in Blender if you want to tweak, rig or re-texture it.
How this template works
Image Studio designs the asset in a fixed style, then Image to 3D builds it within a 8,000-face polygon budget. The export presets set format, scale and texture size for your engine.
1Open Image StudioStep 1 · Image StudioDesign the asset
Image Studio turns your text or sketch into a clean concept render. The building template stands one building on a flat ground tile, seen from slightly above, so roof and entrance both read clearly. The object is isolated on white so the 3D step sees one clear shape.
Nano Banana 2.1 (text) or GPT Image 2.5 Flare (sketch)
2Open Image to 3DStep 2 · Image to 3DBuild the 3D model
Image to 3D (Prism 3.1) builds the mesh with a 8,000-face face limit and Fast textures, so it's light enough for real-time use.
Prism 3.1 · Fast textures · Standard mesh · 8,000 face limit
Do it yourself for more control
- Change the style text in the Image Studio prompt to match your game's art direction.
- Use Remesh to hit an exact triangle count or get quad topology.
- Use LOD to generate lighter versions for distant objects.
- Line buildings up on the same grid size so streets snap together.
What is 3D AI Studio?
3D AI Studio is a web app that makes 3D models, images and sounds with AI. It runs in your browser, so there is nothing to install.
A template is a saved recipe. It runs a fixed set of AI tools with settings we've already tested, so all you add is a photo or a sentence.
Step 1Image StudioDraws a picture from a sentence or a sketch.
Step 2Image to 3DTurns a single picture into a textured 3D model.
What you need
- One sentence or a sketchNo prompt skills needed
- 3D software or skillsNot needed. It all happens in the browser
- A free accountSign up with Google or email
Sign up for free and make your first one right away. Downloading the files is part of the paid plans.
The files you get
Drag it into Unity, Unreal or Roblox Studio.
For Godot, Blender, websites and AR viewers.
How to describe it
- Describe one object, not a scene: "a wooden barrel with iron rings".
- A rough sketch is enough; notes and arrows on the paper are ignored.
- Make several assets with the same template to build a matching set.
Good to know: Buildings are solid exteriors; interiors aren't modelled.
Run this template from Claude, ChatGPT or Cursor
Connect the 3D AI Studio MCP to your AI assistant and paste the brief into the chat. It runs the same steps with the same prompts and settings, shows you the result in the conversation and saves it to your library.
- Connect the MCP once in your account settings. It's included in every paid plan.
- Copy the brief and swap the example in the first line for your own.
- Paste it into a new chat. Your assistant runs every step and shows you each result.
generate_image_nano_2_1upload_imageedit_image_gptgenerate_prism_3_1generate_p2convert_modelget_generationshow_generationUse the 3D AI Studio MCP to run the "Stylized Building" template (https://www.3daistudio.com/templates/building-generator) for me.
My idea: A cosy medieval tavern with a thatched roof
Season: Summer
Condition: Well-kept
Follow these steps in order. The prompts and settings are the template's own, so use them word for word and only put my idea where it says {MY IDEA}.
1. Design the asset
Call generate_image_nano_2_1 with aspect_ratio "1:1", resolution "1K", output_format "png" and this prompt:
"""
A finished 3D game asset render of {MY IDEA}. Style: stylized hand-painted 3D game asset like a fantasy RPG prop, exaggerated chunky proportions, painterly hand-painted textures with soft gradients and warm highlights. One single standalone building only, standing on a small flat square ground tile, shown in a three-quarter view from slightly above with the front door and roof clearly visible, the entire building visible with generous empty margin, no surrounding streets or other buildings. Seamless pure white (#FFFFFF) background, soft even studio lighting, no cast shadows, no text, no signs with writing.
"""
If I want to start from a sketch or reference image instead, call upload_image so I can hand it over, then call edit_image_gpt with the upload in images, quality "low", output_format "png" and this prompt:
"""
This is a rough sketch. Recreate the object it shows as a finished 3D game asset render, keeping the sketch's design, proportions and key details, and ignore any handwritten notes, arrows and paper. Style: stylized hand-painted 3D game asset like a fantasy RPG prop, exaggerated chunky proportions, painterly hand-painted textures with soft gradients and warm highlights. One single standalone building only, standing on a small flat square ground tile, shown in a three-quarter view from slightly above with the front door and roof clearly visible, the entire building visible with generous empty margin, no surrounding streets or other buildings. Seamless pure white (#FFFFFF) background, soft even studio lighting, no cast shadows, no text, no signs with writing.
"""
2. Build the 3D model
Call generate_prism_3_1 with the task_id of the image from step 1 in images, texture_model "3.5", texture_quality "fast", geometry_quality "standard", pbr false, face_limit 8000.
For a lighter, game-optimized mesh with clean low-poly topology, call generate_p2 instead with texture_model "3.5", texture_quality "standard", pbr false and no face_limit.
3. Export
Export it for Unity unless I name another target: call convert_model on the 3D model with output_format "fbx_zip" (FBX with its textures) for Unity, Unreal / UEFN or Roblox Studio. Godot or Blender take the generated GLB as it is, no conversion needed.
After each generation call, keep polling get_generation with its task_id until it completes, then show me the result with show_generation before you start the next step.Or automate it with the API
The same tools are available through the 3D AI Studio API. Call them from your own code to make hundreds at once, build them into your app or run them in your pipeline.
Stylized Building: questions & answers
3D AI Studio is a web app that makes 3D models, images and sounds with AI. It runs in your browser, so there is nothing to install. A template is a saved recipe. It runs a fixed set of AI tools with settings we've already tested, so all you add is a photo or a sentence.
No, they're exteriors only, ideal for town views, strategy games and backgrounds.
Yes. Every building uses the same style prompt, so a tavern, a smithy and a tower match.
Sign up for free and make your first one right away. Downloading the files is part of the paid plans.
Turn an idea into a stylized 3D game building
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