TL;DR
- Comfort controls breeding frequency. Keep it high in rooms where you want kittens.
- Stimulation is king for inheritance. High Stimulation means kittens get their parents’ best stats and abilities.
- Appeal affects your entire house. Higher Appeal brings better stray cats to your door.
- Specialize your rooms. Breeding room, recovery room, and overflow room should have different furniture setups.
- Buy Food Storage furniture immediately. The default 100 food cap runs out fast with a full house.
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Most MewGenics players treat furniture like decoration. They toss a couple chairs in a room, maybe a lamp, and wonder why their kittens keep inheriting garbage stats. The house system is one of the most important mechanics in the game, and getting it right changes everything about your breeding results, stray quality, and run consistency.
This guide covers how every house stat works, which NPCs to prioritize, and how to set up specialized rooms that actually produce strong cats. If you’re still learning the basics, check out our MewGenics beginner guide first.
The Five House Stats Explained
Every room in your house tracks five stats. These aren’t just flavor numbers. They directly control breeding outcomes, cat health, and the quality of strays that show up at your door. Here’s what each one does and when to prioritize it.
| Stat | Icon | What It Does | Priority |
|---|---|---|---|
| Comfort | Sleeping Cat | Increases breeding frequency, reduces fighting between cats, boosts chance of multiple kittens per litter | High (breeding rooms) |
| Stimulation | Yarn Ball | Kittens inherit better stats and abilities from parents. High Stimulation means kittens take the higher of two parent values instead of the lower | Highest (breeding rooms) |
| Health | Medicine | Injured cats recover overnight. Low Health increases the chance of disorders developing | Medium (recovery rooms) |
| Mutation | DNA Helix | Increases chance of random mutations during breeding. Can be powerful but unpredictable | Situational |
| Appeal | House | Determines stray cat quality across your entire house. Higher Appeal brings strays with better base stats and unique abilities | High (always) |
⚡ Key detail: Appeal is the only stat that applies to your entire house, not just the room it’s in. Every other stat is room-specific, so furniture placement per room matters.
Stimulation deserves extra attention. When a kitten is born, the game checks both parents’ base stats. With high Stimulation, the kitten gets the higher value. If the father has 2 Constitution and the mother has 8, the kitten gets 8. With low Stimulation, you might get 2 instead. The same applies to active and passive ability inheritance. This is why Stimulation is the single most important stat for producing strong cats. Our breeding guide covers how to use Stimulation alongside body shapes, stat stacking, and inbreeding management to engineer cats for specific class builds.
Comfort has a hidden mechanic that trips up a lot of players: each cat in a room past the first four reduces Comfort by 1 point. Cram eight cats into one room and your Comfort tanks, breeding slows down, and cats start fighting. Fights can cause injuries or even deaths.
How to Get Furniture
Furniture doesn’t show up until you clear the Cave region in Act 1. Once you do, an NPC named Baby Jack appears and starts selling furniture from your house. His shop restocks every in-game Sunday, so check back weekly.
There are over 750 unique furniture pieces in MewGenics, each with standard and rare variants. Rare versions have doubled stat bonuses and unique visual designs. You won’t collect them all, but you don’t need to. Focus on pieces that boost the stats you actually need.
Furniture Boxes are the other main source. During runs, you’ll occasionally find box tiles on the map (they replace the usual skull markers or chest indicators). Stepping on one gives you a furniture box that you can equip for +8 Shield but -5 Movement. Don’t equip it. Keep the box in your inventory and finish the run. It opens automatically when you get home and gives you a random furniture piece. If you equip the box and the shield breaks, you lose it entirely.
⚡ Pro tip: Furniture boxes from Act 2 areas (Bunker, Crater) contain higher-value pieces. Prioritize grabbing these when you see them.
Sell furniture you don’t need. Items sitting in storage provide zero stat bonuses. Only placed furniture affects your rooms. Offload low-tier pieces at the pawn shop to recoup some coins for Baby Jack’s better stock.
Room Expansion and NPC Upgrades
Your house starts with one room. To expand, you need to donate cats to specific NPCs through the tube system. Each NPC wants a different type of cat and rewards you with a different upgrade. Here’s every NPC and what they unlock:
| NPC | Wants | Unlocks | Priority |
|---|---|---|---|
| Frank | Retired cats (any that completed an adventure) | New house rooms (max 5 total) | 🔴 Top |
| Butch | Retired cats from new zones | Expanded item storage + class collars | 🔴 Top |
| Baby Jack | Injured cats | More furniture in the shop | 🟡 High |
| Tracy | Cats aged 5+ years | Better shop items, Blank Collars | 🟡 High |
| Tink | Kittens (1 year old) | Family tree view, personality info, cat stats | 🟢 Medium |
| Dr. Beanies | Mutated/afflicted cats (batches of 5) | Invention side quests | 🟢 Medium |
Prioritize Frank and Butch first. More rooms means you can separate breeding pairs from your general population, and expanded storage keeps your inventory from overflowing during runs. Both need retired cats, so plan your retirements carefully. Don’t dump every cat into one NPC.
Baby Jack comes next. Sending him injured cats expands his furniture selection, which directly improves your room optimization options. Cats that come back from runs with missing eyes or limps are perfect candidates. Tracy is worth investing in once you have older cats, since she eventually stocks Blank Collars that let you run two cats of the same class.
Tink is lower priority but still valuable. Donating kittens unlocks the family tree view and detailed stat breakdowns. Once you’re breeding seriously, this information helps you avoid inbreeding and track which bloodlines produce the best offspring.
⚡ Important: Donated cats are gone permanently. Never send a cat with strong genetics or unique abilities to an NPC. Use cats with weak stats, dead-end bloodlines, or genetic problems you don’t want in your breeding pool.
Room Specialization: Setting Up Your Rooms
Once you have multiple rooms from Frank, stop treating them the same. Each room should serve a specific purpose with furniture chosen to match.
The Breeding Room
This is your most important room. Stack it with high Stimulation and Comfort furniture. Stimulation ensures kittens inherit the best stats from their parents, and Comfort keeps breeding frequency high while preventing fights. Put your two best cats in here and nobody else. Every extra cat past four drops the room’s Comfort.
Expect trade-offs. Stimulation-heavy furniture like the Toxic Waste Barrel (+4 Stimulation, -2 Comfort) boosts inheritance quality but tanks Comfort. Balance these with pure Comfort pieces like the Microwave (+1 Comfort) or Newspapers (+1 Comfort) to offset the penalty.
The Recovery Room
Cats come back from runs injured. A room with high Health stat lets them heal overnight instead of carrying injuries into your next adventure. Move banged-up cats here after a run and let them recover before sending them out again or moving them to the breeding room.
The Overflow / Stray Room
New strays, kittens you haven’t evaluated yet, and cats waiting for NPC donations go here. Keep it basic. You don’t need high stats in this room because these cats aren’t breeding. The main goal is keeping them separated from your breeding pairs so they don’t dilute your Comfort or accidentally produce unwanted litters.
Food Management
Every day costs 1 food per cat. With a full house, that adds up fast. The default food cap is 100, which sounds like a lot until you’re running 15+ cats across multiple rooms. Buy Food Storage furniture as soon as Baby Jack stocks it. Each Food Storage unit adds 40 to your maximum capacity. Without it, you’ll be forced into supply runs when you’d rather be breeding.
If you can’t afford to feed everyone, cats starve and die. Ruthless population control sounds harsh, but donating weak cats to NPCs serves double duty: it reduces food costs and progresses your upgrades.
Furniture Placement Tips
Furniture placement isn’t just about cramming high-stat pieces into every corner. Cat pathfinding matters. If cats can’t reach food bowls, litter boxes, or each other efficiently, your breeding rates drop regardless of your stats.
Use an open hub layout. Keep the center of the room clear for movement. Place interactive furniture (scratching posts, beds, food bowls) along the walls. This reduces the time cats spend walking and increases time spent interacting with stat-boosting items.
Stack furniture on flat surfaces. Some pieces with flat tops (tables, counters) let you place smaller items on top of them. This is how you squeeze extra stat bonuses into a room that’s running out of floor space. Wall items (posters, shelves) work separately and don’t compete for floor space at all.
Watch for stat trade-offs. Most powerful furniture pieces come with penalties. The Daruma Statue gives +1 Appeal and +1 Stimulation but costs -1 Comfort. The Taxidermy Pigeon gives +1 Mutation but tanks Health and Appeal. Always check the net effect on your room before placing something new.
Separate food from waste. If food bowls and litter boxes are right next to each other, it increases cat stress and can trigger illness. Keep them on opposite sides of the room.
Playing with a Controller
MewGenics supports controllers natively, and the tactical grid combat translates well to a gamepad. If you’re spending long sessions managing your house and running adventures, a good controller makes a difference.
Xbox Elite Series 2 Controller
Premium PC controller with adjustable tension thumbsticks and paddles
MewGenics has full controller support, and the tactical grid combat feels great with a gamepad. The Xbox Elite Series 2 gives you adjustable tension thumbsticks for precise unit selection, back paddles for quick ability access, and works with PC and Steam Deck natively via Bluetooth or USB-C.
Common Mistakes to Avoid
Overcrowding rooms. This is the number one house management mistake. Each cat past four in a room drops Comfort by 1. Comfort crashes, cats fight, injuries happen, and breeding stops. Keep your breeding room to two cats maximum. Use overflow rooms for everyone else.
Ignoring Food Storage. The 100 food cap is a trap. You’ll hit it within a few in-game weeks with a growing population. One Food Storage piece adds 40 capacity. Buy it the moment Baby Jack has it.
Sending good cats to NPCs. Every cat you donate is gone forever. Never tube a cat with strong stats, rare mutations, or abilities you want to breed. Use weak cats, inbred cats with defects, or genetic dead-ends.
Hoarding junk furniture. Furniture in storage does nothing. It provides zero stat bonuses unless it’s actively placed in a room. Sell low-tier pieces at the pawn shop instead of letting them collect dust.
Leaving kittens with their parents. Kittens that grow up in the same room as their parents will eventually breed with them. Inbreeding produces cats with birth defects and lower stats. Move kittens to a separate room as soon as they’re born.
Frequently Asked Questions
How many rooms can you have in MewGenics?
Five total. You start with one and unlock four more by donating retired cats to Frank. Each room tracks its own stats independently, except Appeal which applies to the whole house.
What’s the best furniture to buy first?
Food Storage. It increases your maximum food capacity by 40, which prevents the food shortage spiral that kills runs. After that, prioritize Stimulation-boosting pieces for your breeding room and Appeal furniture for your house overall.
Does furniture in storage give stat bonuses?
No. Furniture only provides bonuses when placed in a room. Items sitting in storage are completely inert. Sell pieces you aren’t using.
How do I get rare furniture?
Rare variants drop from furniture boxes found during runs, especially in Act 2 areas like the Bunker and Crater. Baby Jack occasionally stocks rare pieces in his Sunday shop rotation as well. Rare furniture has doubled stat bonuses compared to standard versions.
What happens if I run out of food?
Cats starve and die. Each day costs 1 food per cat. If you can’t cover the cost, the game forces you to choose which cats survive. Buy Food Storage furniture early and keep your population manageable through NPC donations.
Summary
The house system in MewGenics isn’t a side feature. It’s the backbone of everything you’re doing between runs. Specialize your rooms, prioritize Stimulation and Comfort for breeding, keep Appeal high for better strays, and don’t let overcrowding tank your progress. Feed your NPCs the right cats in the right order, and your house turns from a cat storage facility into a genetic powerhouse.
Once your cats are bred and ready to fight, check our team comp guide to build the strongest party for every playstyle.