Create imposing fortresses, fortified castles, keeps, and medieval strongholds with a modular system of 980+ prefabs designed for grid-based level building. Build complete exterior defenses and detailed interior spaces using modular walls, floors, battlements, roofs, doors, windows, stairs, railings, and a wide variety of structural and decorative pieces.
Cold Fortress features a distinct low-resolution texture style, combined with crisp filtering, creating a unique aesthetic that blends retro charm. It captures a nostalgic feel without the limitations of old game engines or consoles.
The included demo scenes showcase both snowy and non-snowy fortress environments, demonstrating how the winter elements can be used or omitted depending on your project. A separate prefab showcase scene is also included for easy asset browsing.
KEY FEATURES
- 953 models and 982 prefabs
- Fully modular system (walls, floors, battlements, pillars, roofs, stairs, railings, doors, windows, and more)
- Supports both interior and exterior environments
- Winter elements are optional, allowing the pack to be used for both snowy and standard fortress environments
- Includes snow piles, wall-edge snow, icicles, frozen water, snowfall, and blizzard effects
- Includes full, half, and corner snow piles for flexible placement against walls and corners
- Multiple models include separate top-surface material slots for selective snow materials
- Includes furniture, food, cookware, storage, books, parchments, weapons, shields, lighting, and other interior props
- Includes modular drainage and culvert pieces
- Includes 18 ready-made decoration presets
- Primarily 256×256 textures with a crisp pixel style
- Designed for grid-based placement using Unity's standard 1-unit snapping
- Smaller models may require smaller increments such as (0.25, 0.25, 0.25)
- Real-world scale proportions
- 3 example scenes included: snowy fortress, non-snowy fortress, and prefab showcase
- Built-in fire, smoke, snowfall, and blizzard VFX prefabs included
- Drag-and-drop ready prefabs
TEXTURES AND MATERIALS
- 41 low-resolution textures and 37 materials, including stone, wood, roof, metal, fabric, snow, ice, drainage, food, shields, smoke, and flame FX.
Materials are prepared for the Built-in Render Pipeline and can be easily converted to URP.
Converting to URP
- Select all materials (they should appear magenta), from the top menu, click Edit > Rendering > Materials > Convert Selected Built-in Materials to URP.
- For Unity 6, open Window > Rendering > Render Pipeline Converter. Select the Built-in pipeline as the source and choose your target pipeline. Select “Material Upgrade,” then click “Initialize and Convert.”
- Ensure all textures have their Filter Mode set to “Point (no filter)” to prevent blurriness.
- Texture Compression should be set to None.
No custom shaders are used. Materials are compatible with URP and HDRP, though HDRP has not been explicitly tested.
NOTE: Some materials use double-sided rendering in URP. In the Built-in pipeline, the Particle/Standard Surface shader is used to achieve double-sided behavior.
