Subnautica Prop Replicas – Life-Size Survival Knife & Thermoblade, 3D Printed Cosplay & Display Props, Glow-in-the-Dark Options (Thermoblade)

• Authentic Game-Inspired Design – Based on Subnautica’s Survival Knife and Thermoblade, recreated with bold shapes and accurate proportions.
• Life-Size Collectible – Each prop measures approximately 25 cm, ideal for cosplay, display, or fan collections.
• Glow-in-the-Dark Options – Choose from standard or glow-blade versions; Thermoblade and glowing knives emit blue-white light after charging.
• Eco-Friendly & Safe – Crafted from biodegradable PLA plastic, lightweight, blunt-edged, and safe for indoor use.
• Handmade in the UK – 3D printed to order with smooth detail and hand-finished quality by fellow Subnautica fans.

Product description Bring the spirit of Subnautica’s deep-sea survival into your home or cosplay collection with these life-size prop replicas of the iconic Survival Knife and Thermoblade. Expertly 3D printed in eco-friendly PLA plastic, each piece is handmade in the UK and designed for safe cosplay or indoor display. Available in standard or glow-in-the-dark variants, these replicas feature accurate proportions, smooth detailing, and bold shapes inspired by the in-game models. The Thermoblade glows with a blue-white light after charging under sunlight or LED, while the Survival Knife offers both a classic and glowing option. Lightweight, blunt, and durable, they’re perfect for fans, collectors, or anyone wanting to display a piece of their underwater adventure. Safety Warning Not a Weapon