Castle Keep Hideaway
An 11-piece rebuildable hamster hideaway for $20, made to order in Kansas. Build it in minutes, rearrange it anytime, and expand it with the same HabitatLink™ connector system.
- ✓ 11 castle pieces
- ✓ Connectors included
- ✓ Pet-safe plastic
- ✓ Ships in 3–8 business days
✓Founding offer includes a free 10-piece connector expansion pack at checkout.
5 Theme SetsNow Showing
Castle Keep
What Is Hamsteropolis?
A modular enrichment system — not a cage replacement.
Hamsteropolis is not a cage replacement. It is a modular enrichment system designed to fit inside a proper small-pet enclosure. Each piece connects through HabitatLink™, our hidden slide-in rail system, allowing walls, towers, bridges, tunnels, platforms, and accessories to lock together into themed environments.
Modular enrichment
Create new layouts over time with interchangeable pieces that support exploration, hiding, climbing, and curiosity.
Built for real enclosures
Designed to live inside a safe, appropriately sized habitat — not replace one.
Endless themes
Start with a castle, then expand into forests, caves, villages, outposts, and future worlds.
Build it together. Bond like never before.
Kids build the world — their hamster explores it. Hamsteropolis turns everyday pet care into a shared adventure, sparking hands-on creativity and a friendship your little one will never forget.
Start Building TogetherHands-on building
Snap pieces together by hand — no tools, no screens. Just real, tactile creativity.
Real bonding
Designing and caring for their pet’s world brings kids closer to their hamster than ever.
Endless rebuilds
Tear it down and dream up a brand-new world any afternoon. The fun never runs out.
The Brand Pillars
Five ideas. One connected system.
Everything we make is shaped by the same five principles — from the first sketch to the final snap-in piece.
Design
Thoughtful themed pieces, safe shapes, and expandable layouts.
Engineer
HabitatLink™ — a shared slot-and-rail connector designed for repeatable assembly.
Build
Snap-in walls, floors, bridges, tunnels, stairs, platforms, and accessories.
Explore
Multiple paths, hideouts, climbing areas, and theme zones.
Enrich
More variety, movement, discovery, and environmental interest for small pets.
Meet HabitatLink™
One hidden connector. Endless layouts.
Every major Hamsteropolis piece uses the same hidden slide-in connector, HabitatLink™. Long vertical rails slide into matching wall slots, creating a clean, seamless connection without glue, screws, or permanent assembly.
Slide in the rail
A long connector rail slides into the built-in slot on the side of a wall, tower, bridge, or accessory.
Join the next piece
Another piece slides onto the exposed side of the same connector, creating a strong hidden joint.
Rebuild anytime
Separate, rearrange, and expand the world as your pet’s layout changes.
Each Hamsteropolis piece is designed around HabitatLink™, a shared slot-and-rail system, so theme sets can connect, separate, and rebuild into new layouts.
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Snap-in Castle pieces
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Hidden connector — HabitatLink™
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Layouts you can build
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Happy-Hamster Guarantee
Safety & Care
Designed around small-pet safety
Every Hamsteropolis piece should make the habitat more interesting without making it harder to monitor, clean, or keep safe.
Open visibility
Layouts stay easy to see into, monitor, and adjust — so you can always keep an eye on your pet.
Easy to remove
Every piece comes apart for cleaning, redesign, or replacement — no glue, no permanent assembly.
Enrichment first
The goal is movement, curiosity, hiding, exploring, and safe novelty — never clutter.
Themed Worlds
Theme worlds that grow over time
Castle Keep is just the first world. The same HabitatLink™ connector can support many future styles, so customers can build a collection instead of buying one static toy.
Available NowCastle Keep
Turrets, ramparts, and arched tunnels for a fortress to climb and explore.
Compatible with HabitatLink™Shop the set →Concept ThemeForest Treehouse
Elevated platforms, rope-style bridges, and leafy hideouts up in the canopy.
Compatible with HabitatLink™Concept ThemeCanyon Cave
Rocky burrows, slot canyons, and shaded dens for natural digging instincts.
Compatible with HabitatLink™Concept ThemeVillage Cottage
Cozy rooms, little doorways, and a homestead layout for nesting and resting.
Compatible with HabitatLink™Concept ThemeExplorer Outpost
Lookout towers, gangways, and gear-room hides for the adventurous explorer.
Compatible with HabitatLink™The Build Path
Start small. Snap together. Rebuild anytime.
Loose pieces
Walls, floors, ramps, and accessories — the building blocks of a habitat.
Snap-in system
HabitatLink™ slot-and-rail connectors lock pieces together for a sturdy, repeatable fit.
Theme Sets
Bundled kits bring a complete look — castle, forest, canyon, and more.
Expandable worlds
Connect sets into sprawling, multi-zone habitats you can rebuild anytime.
Designed for Enrichment
Built for more than looks. Built for enrichment.
A great habitat does more than fill a tank — it gives small pets reasons to move, hide, climb, and explore.
Hide & nest
Cozy dens, burrows, and covered corners that satisfy natural nesting instincts.
Climb & move
Ramps, ladders, bridges, and platforms that keep small pets active and agile.
Explore & discover
Winding tunnels, multiple paths, and new zones that reward curiosity.
Refresh & rebuild
Reconfigure the layout anytime to keep the habitat novel and engaging.
Start with the $20 Hideaway.
Eleven pieces and the connectors you need arrive ready to build. Your first order also earns a free 10-piece connector expansion pack at checkout.
🛡️ 30-day returns on unused items · damaged orders replaced or refunded
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