Cold Fortress – Retro Style Modular Environment Pack

A retro-style modular fortress environment pack with optional winter elements and crisp low-resolution textures.

Number of Prefabs: 982

Number of Models: 953

Number of Meshes: 1,301

Number of Textures: 41

Number of Materials: 37

Texture Dimensions: 256×256 (34 textures), 128×128 (1 texture), 64×64 (3 textures), 32×32 (1 texture), 16×16 (1 texture), 8×8 (1 texture)

Minimum Triangle Count: 2

Maximum Triangle Count: 1,616

UV Mapping: Yes

Rigging: No

Animation Count: 0

LOD Information: No LODs included

Texture Maps: Base color, emissive, and metallic

Example Scenes: 3

Render Pipeline: Built-in Render Pipeline

Custom Shaders: No

Snow-Ready Material Slots: Multiple models include separate top-surface material slots, allowing snowy materials to be applied to exposed upper surfaces without affecting the rest of the model.

Some textures have been acquired from www.freepik.com

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.