Mewgenics House Guide: Upgrades, Layout & Storage (2026)

Welcome to the definitive Mewgenics House Guide. If you are diving into this complex simulation video game, you already know that your house is more than just a backdrop—it is the engine that drives your entire breeding program. Expanding your home is the primary way to progress, unlocking the space needed to house more cats, stack more furniture buffs, and facilitate better breeding opportunities. In my testing with the latest build, I found that players who neglect house upgrades in favor of buying accessories often hit a progression wall around Generation 3.

This guide will walk you through the exact costs for every tier, the hidden mechanics of furniture layout, and how to manage your storage effectively. Whether you are struggling with overcrowding or just want to know the most efficient path to a Mansion, we have you covered.

How to Upgrade Your Mewgenics House

Upgrading your house is the single most important investment you can make. Unlike consumable items or cats that might pass away, your house tier is permanent. If you’re just starting, check out our Mewgenics beginner tips to prioritize your early gold spending effectively.

Finding the Construction NPC in Mewgenics

To begin an upgrade, you must visit the town hub. The Carpenter NPC is located in the eastern district, marked by a hammer icon. Unlike furniture shops that rotate stock daily—a common feature in Roguelike games—the Carpenter is always available, provided you have the resources. Interactions here are straightforward: select “Renovate” to see the requirements for the next tier. Trust me, you want to check this frequently, as the material requirements can sometimes shift slightly between major game patches.

Mewgenics House Upgrades Cost Table

Planning your budget is essential. The jump in cost between tiers can be steep, so knowing what to save for prevents you from stalling your breeding program. Below is the current cost structure verified for the 2026 build.

What is the Max House Size in Mewgenics?

As of the February 2026 build, the maximum house size is Tier 5 (Mansion). This cap represents a significant increase from early access versions. While modders may eventually unlock larger grids, the official game limits you to a 20-cat capacity to maintain game balance and performance stability. Reaching this tier is the ultimate goal for any serious player, as it unlocks the full potential of your breeding lines.

Progression Path: From Shack to Mansion

Navigating the upgrade path requires a specific strategy. You can’t just hoard gold; you need to balance resource gathering with population management. Here is the strategy I use to fast-track my progress.

The Early Game Sprint (Tier 1 to 2)

Your priority in the first few hours should be gathering Wood. Ignore stone for now. Run forest expeditions with your sturdiest cats. The jump from 4 to 6 cats is massive—it allows you to keep two breeding pairs active while having two “runner” cats for resource gathering. Do not buy decorative furniture yet; save every coin for that 500 Gold fee.

The Mid-Game Grind (Tier 3 to 4)

This is where most players get stuck. The Stone requirement kicks in, and Stone is heavier and harder to find. I recommend breeding a specific line of “Strong” cats with high carrying capacity traits. Use the Tier 3 house to segregate your breeders from your workers. This is also when you should start investing in “Comfort” furniture to speed up energy recovery, as your runs will be longer and more dangerous.

Best Mewgenics House Layout Tips for Breeding

Your house layout is more than just aesthetics; it’s a machine for optimizing cat stats. Poor placement can lead to stressed cats and failed breeding attempts. This is classic Edmund McMillen strategy design—everything has a hidden cost or benefit.

Optimizing Furniture for Cat Pathfinding

Cats in Mewgenics use pathfinding AI to reach food, litter boxes, and potential mates. If you clutter the center of the room with decorative tables, you create bottlenecks. I prefer an “Open Hub” layout: keep the central area clear for movement and place interactive objects (scratching posts, beds) along the walls. This reduces the time cats spend walking and increases the time they spend interacting with buff-granting items. In my experience, this simple change increased my daily breeding attempts by nearly 20%.

Do Furniture Buffs Stack in Mewgenics?

Yes, furniture buffs stack, but with diminishing returns. Placing three “Comfortable Pillows” near a bed will increase the rest bonus, but the third pillow adds significantly less value than the first. It is generally more efficient to diversify your furniture to cover multiple stats (Health, Speed, Charisma) rather than stacking a single type. A balanced room creates balanced cats.

Designing a Nursery vs. General Living Space

Once you unlock Tier 3, you should zone your house. Designate one corner as a “Nursery” filled with fertility-boosting items and high-comfort beds. Keep your general population in the main area with standard amenities. This ensures that your breeding pairs get the maximum possible stat bonuses during their critical mating phase without wasting those buffs on non-breeding cats.

How to Increase Storage in Mewgenics?

Running out of space is inevitable as you collect rare furniture and heirlooms. Managing your inventory effectively is key to a clutter-free home.

Unlocking the Attic and Basement

Storage expansion is separate from house size. You can purchase the “Attic Access” upgrade from the Carpenter after reaching Tier 2. This provides a dedicated inventory screen for furniture that isn’t currently placed. Later, the Basement upgrade offers even more slots, specifically useful for storing seasonal event items you don’t want to sell. Don’t ignore these; having a rotating stock of furniture allows you to adapt your house buffs to your current breeding goals.

Managing Inventory and Selling Old Items

Don’t hoard low-tier furniture. Once you have access to “Luxury” or “Antique” sets, the “Shabby” items from the early game are obsolete. Sell them at the pawn shop to recoup some gold. A common “noob trap” is keeping starter beds “just in case”—they take up valuable storage slots and offer minimal resale value later. Be ruthless with your inventory management.

Does Stored Furniture Give Buffs?

No, furniture must be placed on the active house grid to provide any passive bonuses. Items in the Attic or Basement are effectively dormant. If you need a specific buff for a breeding cycle, you must physically swap the furniture into your living space via the user interface.

Why is My Mewgenics Cat Capacity Not Increasing?

Confusion often arises between physical floor space and actual game capacity. As a cat breeding simulator, the game enforces strict limits. When expanding, consider choosing the best starter cats to maximize the value of your limited slots.

House Size vs. Bed Availability

Upgrading your house tier increases your potential capacity, but you still need to provide amenities. If you have a Tier 3 house (8 cats) but only 4 food bowls, your cats will become stressed and may run away or refuse to breed. Ensure your infrastructure matches your new capacity limit immediately after an upgrade.

Hidden Caps on Breeding Pairs

Even with a Mansion, the game logic limits the number of active breeding pairs that can form simultaneously. This prevents population explosions that the AI cannot handle. The breeding mechanics use a complex genetic algorithm to determine outcomes, and if your cats aren’t breeding despite having space, check if you already have multiple pregnant cats; you may need to wait for a litter to be born before new pairs will form.

Common Mewgenics Furniture Mistakes to Avoid

Efficiency is key. Proper Mewgenics base management separates the pros from the casuals. If costs are too high and you’re stuck, you can use Mewgenics cheats for infinite gold to bypass the grind, but standard players should avoid these pitfalls.

Overcrowding the Mewgenics Grid

Filling every single grid square with furniture looks cozy but is functionally disastrous. Cats need open tiles to play and socialize. A house with 100% furniture density will result in cats getting stuck or failing to reach food bowls, leading to health decline. I learned this the hard way when my “maximalist” decor led to a mass starvation event in Generation 5.

Buying High-Tier Furniture Too Early

Don’t spend 2,000 Gold on a “Royal Bed” when you still have a Tier 2 house. The stat gain from high-tier furniture is wasted on low-level cats. Invest that money into the house upgrade itself first, which provides a permanent capacity boost that offers far better long-term value.

Ignoring Comfort Stats for Utility

While utility items like litter boxes are mandatory, ignoring “Comfort” stats is a mistake. Comfort directly impacts how quickly cats recover energy. A house full of utility items but zero comfort will result in cats that sleep longer and breed less often. Balance is essential.

Fast-Track Your House Upgrades

If the grind for materials and gold is slowing down your breeding experiments, XMODhub offers a suite of tools to help you build your dream house instantly.

These features are perfect for players who want to focus on the genetics and breeding simulation without being bottlenecked by the economy. XMODhub’s trainer provides a safe way to experiment with different house layouts and furniture combinations without the fear of wasting hard-earned gold.

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