Outworld Max
Take your colony’s world to the next level with Outworld Max – designed for keepers who want it all: more space, more connections, and more creativity.
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Double the Size 🏞️ – Outworld Max offers twice the space of our standard Outworld, perfect for feeding larger colonies and building detailed landscapes.
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Four Connection Ports 🔗 – Expand in every direction. Connect multiple nests, Outworlds, or Zones for a modular setup limited only by your imagination.
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Landscape-Friendly 🌱 – Its spacious floor lets you decorate with sand, rocks, branches, or plants. Create deserts, jungles, or canyons – your ants will thrive and forage in a world you design.
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Crystal-Clear View 👀 – Built with the same thin, high-clarity acrylic as the rest of our Outworld series, offering great visibility.
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Part of the AntKeepers System 🛠️ – Fully compatible with all AntKeepers nests, AntGates, and accessories.
With Outworld Max, you don’t just keep ants – you create a living, breathing miniature world.
Always 30 days return guarantee
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Why AntKeepers?
FAQ
Description
Specifications
Length: 20,4 cm / 8"
Width: 14,2 cm / 5.6"
Height: 12,2cm / 4.8"
Shipping & Returns
Shipping
We are based in Stockholm, Sweden, but ship internationally. See your shipping time below*.
Sweden: 1-3 business days
Great Britain: 4-5 business days
USA: 5-7 business days
Denmark, Finland, Norway: 2-5 business days
Germany: 3-5 business days
EU: 3-5 business days
Australia/New Zealand: 8-9 business days
Other International: 3-8 business days
*Please remember that delays in customs may increase the shipping time, depending on your country regulations/custom handling.
Shipping provider
We use the Nordic logistic partner PostNord for all of our orders.
Returns
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
Read more here: Return policy
Returns
Frequently Asked Questions
Which Nest should I choose?
Choosing the right Nest depends on the size of your ant colony. The Small Nest is ideal for starter colonies with 1-30 ants, depending on the species. The Medium Nest is better suited for colonies that need more space, typically ranging from 30-150 ants. The Large Nest is designed for larger colonies with 150+ workers. Keep in mind that different ant species have varying space requirements due to their size. As your colony grows, you can easily expand their habitat by adding another Nest module.
Do you sell ants?
No, we do not sell ants. However, there are many reputable ant stores where you can purchase ants, or you can try to find ants in nature if it is permissible in your area. Always make sure to follow local laws and regulations, and treat all natural habitats and insects with respect.
Where do you ship your formicaria, and what are the shipping times?
We ship our formicaria internationally. Shipping times vary depending on your location. For orders within Sweden, delivery usually takes 1-3 days. For other European countries and the US, please allow a few extra days for delivery. We strive to pick and pack orders as quickly as possible to ensure timely shipping.
Do I need anything else besides the Nest?
Yes, in addition to the Nest, you will need an outworld where the ants can forage. We also recommend a liquid feeder, particularly for providing sugar water, which is essential for the health of your ant colony.
What ant species does this formicarium work for?
The Nest Formicarium is suitable for almost all ant species commonly kept by ant enthusiasts. The only exceptions are certain exotic species, such as weaver ants, which require a very high level of humidity that this formicarium may not be able to provide.
Can I return my products?
Yes, you can return your products. For more details, please refer to our returns policy.
Are the products suitable for kids?
Yes, our products are suitable for kids, but adult supervision is always recommended. Please be aware that the Nest Formicarium contains small parts that could pose a choking hazard to young children.
There is nothing as beautiful as Nest on the market today. All sizes are delicately designed to resemble natural ant nests. Our vision is for you to take these and then create your amazing miniature world from it, by combining the sizes to your liking together with our Outworld.
Nest is a design project years in the making, and we can finally say that thousands of ants have found their home here.
Nest and a majority of our other products are designed and produced in Stockholm, Sweden. We are happy to see the products spread across the globe. Maybe you have a colony living in them you want to share with our community?
We've gathered the measurements of all Nest sizes here for you. When buying a Nest you do not have to buy any extra Antgates, unless you have very specific connection needs. For normal usage, they are all included. The same goes for the sponges.
Nest Small dimensions:
Length: 6,4cm / 2.5"
Width: 3,4cm / 1.33"
Height: 1,8cm / 0.7"
Nest Medium dimensions:
Length: 6,4cm / 2.5"
Width: 6,4cm / 2.5"
Height: 1,8cm / 0.7"
Nest Large dimensions:
Length: 10,5cm / 4.13"
Width: 10,4cm / 4.1"
Height: 1,8cm / 0.7"
All three sizes of Nest work seamlessly together. They form a perfect shell-like shape when they are all assembled, but they can be arranged however you like. You can build your own version and create something unique.
Nest formicaria are built to be connected directly to our Outworld. But you can also connect to other brand's outworlds with vinyl tubing. Just attach the tubing to our "Antgate Tube" product and then connect the pieces.
My outworld is cracked. Honestly not sure it cracked during delivery or cause by me but i don’t remember hearing or feeling the plastic crack.
The side and top transparent plastic is very very fragile, even acrylic is harder than it. I like the concept that you can block the ant but the plastic quality is disappointing especially for the price.
This is a great product that combines both functionality and aesthetics. The only minor drawback is that when opening and closing the outworld lid, the vibrations can travel to the nest and cause some stress to the ants. However, this can be largely avoided by connecting the outworld and nest with a tube instead of attaching them directly, so it isn't a major issue.
As a customer living in South Korea, the one thing I find really unfortunate is the very long shipping time. It usually takes about a month for an order to arrive. If it weren't for that, I would consider these products practically perfect.
Love the new outworld max, tunnels and accessories. Now have 2 sets ups for 2 different species.
As expected the product received was beautiful. Hands down the most esthetic ant farm on the market. After having ordered, I wanted to add something to the order. Linus responded instantly and changed the order, sent me the payment link and everything was arranged. Great experience!
Overall all products have great quality. The only thing I would like to change would be a better "documentation" on which parts match with which other parts. This would be useful for the water towers: One is made for standing on its own, and the other one is made for connecting with the habitat with the sponge. I was not aware of that, otherwise I would have ordered the one for the sponge in the same order in which I ordered the habitats.
Leveransen tog lite väl lång tid.
Bra kvalitet och design på delarna. Skulle önska bättre "stopp-skarvar" där pluggarna inge ramlade ur lika lätt. Känns som att man ska få myror överallt om någon kommer lös. Smart design på "boet" med vridbara dörrar.
Min son är taggad på att fylla den med en koloni.
The only thing I would ask for is it to have been slightly bigger for the price me maybe have come with a tube to connect. Also just when you snap on the tunnel it doesn’t sit properly if the tunnel opening beside it has a cap on it. Overall though great and functional product and I got everything that was advertised.
I received my Outworld max in the UK extremely fast. Absolutely love it would certainly recommend.
This is such a cool idea, I love the idea of a modular ant farm that is customizable based on your personal taste as well as space. I bought one as a gift for a friend and he absolutely loves it! The outworld module lets you design and create a little terrarium that your ants can explore, which I adore. Excited to see my friend design his and then get his first ants!
Its a great box lol. Plenty of room to optimize the area for whatever species that you decide to keep or even throw in whatever flair you would like to add yourself.
Alles perfect toegekomen en alles is zoals op de foto mooi en verzorgt
The outworld design is done very well and the thought process behind the outworld and nest is very good although I did have a few issues which I feel could be resolved with a few tweaks,
The ports are all a little jiggly snd some of mine just wiggle entirely and i feel as if enough ants would just be able to push it out snd escape, Ive had to keep cotton wool permanently in 2 of the 4 outworld ports as I am a little paranoid about this. Also what I didnt see listed anywhere on the site was that if you pick the outworld up by the glass (stupid i know but I was quickly trying to move it while decorating it) the bottom half will just come off, I dont know if this is an intentional design or if mine wasnt put together correctly however i spilled dirt all over my floor 🫠 I fixed it by gluing the glass back down however I then also came upon a new problem with the ports, if any sand or dirt gets into them (which can easily happen) they are very hard to remove the dirt from and it results in making the ports not fit flush anymore or becoming very hard and scratchy to remove.
I did write an email to support asking questions multiple times however I feel that the support team is too small as I have not recieved a response even to an email I sent before I bought the bundle.
I do really like the speed, Idea, quality and design however I feel as with all things it isnt just yet perfect and a larger team could definitely help.
The ventalation insert was too wide and it cracked the acrylic, so I had to sand down the insert to make it fit. Also, the green connector on the outwold side was chipped on the corner. These things are not a huge deal to me, they are just dissapointing considering the $70 price tag.
This company is absolutely wonderful! I was so thrilled when I got an email notification about there being a restock of their products because my finance has been non stop talking about them and how badly she’s been wanting an ant farm but only from AntKeepers. I immediately went on the website and placed an order! it was such great timing because her birthday was coming up. I received a thank you email from Linus the founder/sole independent owner followed by a shipping confirmation email and a downloadable user friendly guide for new/beginner antkeepers. We have not stopped talking about how wonderful this company is and recommend them to everyone!
Outworld Max
I’m really impressed with the gear from Ant Keeps. The Nest Formicariums and Outworld Max are high-quality and the modular system works perfectly. Everything, from the Water Hub to the feeders, is well-made and functional. The ordering process was smooth and the items arrived in perfect condition. Highly recommended for any ant keeper!
Well made, smartly designed. I just wish you had a US warehouse so I didn't have to wait so long!
I recenly purchased the Outworld Max along with the medium and large formicarium. Build quality is excellent and looks great! I can't waint to move my colony in.
Wonderful products!
Den fungerar bra och är väldigt stor och funktionell men den lilla ventilations biten var väldigt svår att sätta i, blev en pytteliten spricka i glaset när den väl gick i.
Received the set, and everything went together easy. I am really digging the use of colors.
I received my Outworld Max a couple weeks ago and noticed that there was a crack in the acrylic. Although I don’t think a small crack is the end of my world, it still shouldn’t be there. I sent a message to Antkeepers and didn’t even get a reply. I’m concerned about, and unhappy with, the lack of customer care.
Update: Antkeepers contacted me, had a resonable explanation for the delay in response I had experienced, and made things right by me. I appreciate this, have adjusted my rating, and will continue to give Antkeepers my business in the future.
Hello Matthew, Linus here. I am so sorry about your experience. I see your e-mail now, and the crack from the shipping. I have sent you a reply, offering you a new Outworld Max or a refund on the existing one. Looking forward to your reply! I hope your ants will be happy in their new home. /Linus
It's such a great size, the unobstructed sides allow a great view to see all your little ants go about their business. Really good quality and fantastic price.
Fantastic, happy to hear it Joey! I hope your ants will build a great colony in their new setup. /Linus
the farm didnt have ventilation and killed my ants
Hello Matt, Linus here. I am so sorry to hear about your ants. Our Outworlds have ventilation through a metal net, and all of our modules, including Nest, Hubs, and Zones, have ventilation through small holes in the acrylic glass. We have thousands of consumers keeping their ants in our ant farms, and I have not heard about this before. I would like to know more about the issues you've been having so that nobody has the same experience in the future. You can either respond to this comment here or email me at info@antkeepers.com. Thank you for trusting us, and I am once again sorry about your ants. /Linus
all was perfect, very good material, shipping very fast
Ok, but to expansive!
This is my first attempt at keeping ants. The equipment I bought is fantastic quality, looks and feels great when put together. The way the separate units can be opened and closed with a turn of a wheel without disturbing the inhabitants is genius, a simple idea but something not many other companies do.
Mish laughton UK
Mycket välgjorda outworlds och nests. Bra priser och snabba leveranser. Har tre olika arter i tre olika setups och de trivs och utökar sina respektive kolonier.
