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Fibre Tycoon: build Britain's full fibre network

It is 2010. The country runs on copper, the incumbent is still pushing fibre to street cabinets, and nobody has heard of an altnet. You have £45m of the bank's money, two build teams and a map of Britain. Everything after that is up to you.

Version 6, the current build. There are two earlier films further down if you want to see how far it has moved.

Play Fibre Tycoon

Plays in any modern browser. Nothing to install and no account needed. Your game saves itself, so you can close the tab and pick it up later. Best on a big screen with the sound on, and it fits a phone if that is what you have.

Your progress is saved, and your score can go on the board

The two questions people asked most have both been answered.

You will not lose your company. The game saves your position automatically as you play, so closing the tab, a flat battery or a stray browser update will not cost you thirty years of building. There are also three named save slots, and you can export the whole thing to a file you keep.

There is a leaderboard, and it is permanent. Retire from any game and you can put your name and score on it. Every completed game stays there, with views for all time, this month, this week and the most recent runs. If you build networks for a living, we would genuinely like to know how much of the country you can connect.

What it actually looks like

Every screen below is from a real run, finished in July 2026 after fifteen game years. Each one is doing a job that maps onto something real in UK telecoms, and between them they are the whole game.

Fibre Tycoon game map of the United Kingdom in July 2026, showing a pink full fibre network reaching Glasgow, Belfast, Newcastle, Liverpool, Birmingham, Cardiff and London, with rival networks in other colours
The map is the game. 285 real towns and cities at their true coordinates, from Thurso down to Plymouth. Your network is one colour, and every rival is another. You click a town, pay to trench fibre out to it from your nearest connection, and watch the digger crawl along the route. The status bar along the bottom is your whole company in one line.
Take-up graph in Fibre Tycoon showing 57% of homes passed buying the service, against rival networks clustered between 15% and 35%
This is the lesson the industry learned the hard way. Passing a home earns you nothing. Take-up is the share of those homes actually buying from you, and it is the only number that pays the bills. Anything above 30% is respectable and above 50% is very good indeed. Every company that has ever traded is plotted here, and the faded lines are the ones that went under.
Fifteen years of accounts in Fibre Tycoon showing build costs, running costs, interest, revenue and profit for each year from 2012 to 2026
The years that hurt come first. This run lost £665.8m in 2012 and £554.9m in 2013 before it made a penny, which is exactly the shape of a real altnet build. The money goes into the ground long before it comes back, and most people who give up on the game do so in those first three years. Fifteen years later the same company had turned over £54.53bn.
Bank panel in Fibre Tycoon showing a balance of 36.57 billion pounds with no loan outstanding, a net debt to EBITDA ratio of zero, and a lender view of comfortable
Debt is cheap right up until it is not. You borrow to build, and interest lands every quarter whether the customers arrived or not. Lenders start to worry above six times earnings: past that your facility is cut and your margin rises, which is precisely when you can least afford either. This company finished debt free, which is rarer than it sounds.
Community and trust panel in Fibre Tycoon showing a five star score from 350,687 reviews, with eight running programmes including a social tariff, digital skills for older people, online safety and parental controls, and free broadband for domestic abuse refuges
Service is not a cost, it is the growth lever. Your TrustScore decides whether a household will switch to a name they have not heard of. It is built from customer service spend, network maintenance and community programmes, and every one of those goes straight through EBITDA, so they genuinely lower your valuation. They also do what they say on the tin, which is rather the point.
League table in Fibre Tycoon with Martin-Smith Networks first, and a Competition Authority panel showing remedies in force at 97.1% coverage with retail pricing capped
Win too hard and somebody official calls. You can take stakes in your rivals, and buy one out entirely from 25%. But a formal investigation opens once your group covers 38% of the country, and remedies bite above 45%: no further stakes, and your retail pricing is capped. You can divest a region to escape, though it is cheaper to see it coming.
Upgrades screen in Fibre Tycoon showing duct and pole access, micro-trenching, aerial deployment, exclusive wayleaves, One Touch Switch and XGS-PON symmetric kit
Every upgrade here is a real thing. Duct and pole access lets you pull fibre through infrastructure that already exists, cheaper to build but you pay rent forever and the rate card is not yours. Micro-trenching cuts a slot in the footway instead of opening the road. Aerial deployment on poles is how most of rural Britain actually gets connected. One Touch Switch and wayleaves both work the way they do in the real market.
Rank and rating breakdown in Fibre Tycoon scoring 929 out of 1000, with full marks for coverage, take-up, reputation, profitability and balance sheet, and 29 out of 100 for growth
You are scored out of a thousand, on six things at once. Coverage, take-up, reputation, profitability, balance sheet and growth. A large network with furious customers stalls. So does a beautifully run village network. Growth is the one that gets you in the end: at 97% of the country there is nowhere left to go, which is a problem the real market is starting to recognise.
Coverage heat map in Fibre Tycoon showing network density across the United Kingdom, with the brightest areas the most heavily built
Six map modes, including this one. Coverage density, rival networks, street detail, labels on or off, and the weather. The weather is scenery rather than a mechanic: leave it on the seasons and it snows in January and rains in November. There is a warning on the thunder setting for anybody sensitive to flashing images.
Medals screen in Fibre Tycoon showing 14 of 25 earned, including First light in summer 2010, The first million in spring 2013, All four nations and Not a penny owed
Twenty-five medals, and they live with your save. Some are milestones, like the first million homes or reaching all four nations. Some are harder and stranger: still trading in 2040, buying a rival outright, selling a region, or seeing the aurora. Nobody has collected them all yet.

How it has changed since July

The game launched on 26 July 2026. These three films are five weeks apart, and almost everything between them came from people who emailed, commented or reported a bug. It is the clearest way to see what a month of player feedback actually does to a piece of software.

Version 4, thirty minutes, unedited. If you want to know whether the game is for you before you spend an evening on it, this is the honest answer: a full run at normal pace, mistakes included. By this point the map had grown to 285 towns, you could plot your own, and you could divest a region to escape merger remedies. All three of those came from one commenter on ISPreview.
Version 2, where it started. Worth watching mainly for the contrast. No per tier pricing, no add-ons, no leaderboard, no soundtrack, no offline play, and text small enough that one player told us it stopped his group from playing at all. Fixing that turned out to be the most important message we received.

Between those two films and this one: the interface now scales and respects your browser's font setting, you can price all four broadband tiers separately, sell add-ons, buy a rival out entirely, put your score on a permanent leaderboard, play offline, and hear a soundtrack that follows how your company is doing. Seven scenarios instead of three.

Your first ten minutes

Most people who give up do so in the first three years, because the money goes out long before it comes back. That is not a flaw in the game. It is the single truest thing about this industry, and it is worth knowing before you start.

  1. Pick one town and connect it properly. Click a town on the map, then Connect. A build team sets off and trenches the route. Resist the urge to start four towns at once with two teams: half-built towns earn nothing at all.
  2. Watch what happens when it goes live. Homes passed climbs immediately. Customers do not. Take-up builds over quarters, and that gap between the two is where altnets live or die.
  3. Do not touch the price yet. The temptation is to undercut everybody on day one. Every pound you take off is a pound off every bill for the rest of the game.
  4. Draw down debt deliberately. You start with a £70m facility and £45m already drawn. The rest is there to build with, and interest lands every quarter whether the customers arrive or not.
  5. Build a cluster, not a scatter. Trunk routes cost more the further you reach. Three neighbouring towns cost far less than three towns three hundred miles apart, and they defend each other when a rival turns up.

By 2013 or so you should have a handful of towns live, take-up climbing, and a nervous look at the bank. That is the game working correctly.

Five mistakes almost everyone makes

1. Confusing homes passed with customers

Passing a home earns you nothing. Nothing at all. You have spent the money to dig past the door and until somebody inside signs up you have bought a liability. Real altnets have been caught by exactly this, and the game will not let you forget it.

2. Cutting the price to win the street

Dropping your retail price does lift take-up, and it does it quickly, which makes it feel like the answer. But the margin goes for good, on every customer, including the ones who would have joined anyway. Try it late in a run and watch what it does to your valuation.

3. Treating customer service as a cost

Your TrustScore is what makes people switch to you, and it is built from service spend, network maintenance and community programmes. A network with furious customers stops growing no matter how much fibre it has in the ground. This is the mechanic people who work in the industry recognise fastest.

4. Borrowing right up to the limit

Debt is cheap and useful right up until it reaches six times earnings. At that point your facility gets cut and your margin rises, which is precisely when you can least afford either. Leave headroom before you need it, not after.

5. Covering too much of the country

Take a stake past half of a rival, or cover too much of the map, and the competition regulator starts asking how many towns you both already serve. You can divest a region to get out of it, but it is cheaper to see it coming.

What the numbers actually mean

Every figure in the game maps onto something real in UK telecoms. If you have ever wondered what these mean when they appear in a press release, this is a painless way to find out.

If you want the real versions of these, our research reports use the same measures on actual UK data.

It is built on how UK broadband really works

What players asked for, and got

The game launched in July 2026. Almost everything added since came from the people playing it, who emailed, commented and reported bugs.

Where it came from

Two things. The first is twenty years of working in UK telecoms and the broadband comparison business, and wanting to show people why their street got fibre in 2019 and the next village over is still waiting. The second is Chris Sawyer's Transport Tycoon, which took up a great many happy months of my childhood and taught me more about business than anything I read at university. The debt to it is obvious and entirely deliberate, right down to the bevelled windows and the performance rating out of a thousand.

How far can you get

There are eleven ranks, and each one needs three things at once: a good performance rating, real scale, and customers who do not resent you.

  1. Cable Puller
  2. Jointer
  3. Gang Foreman
  4. Works Supervisor
  5. Area Manager
  6. Regional Director
  7. Managing Director
  8. Chief Executive
  9. Group Chairman
  10. Knight of the Realm
  11. Peer of the Realm

Reach the top two and the game starts addressing your chief executive as Sir, Dame, Lord or Baroness. Services to digital infrastructure.

Start digging

Questions

Is it free?

Completely. There is no signup, no account, no payment and no advertising inside the game. It is a thing we made because we wanted to.

Will I lose my game if I close the tab?

No. The game saves your position automatically as you play and picks it up when you come back. There are also three named save slots, and the Game menu will export your whole position to a file you keep.

Is there a leaderboard?

Yes, and it is permanent. Retire from any game and you can add your name and score. There are views for all time, this month, this week and the most recent games, and you can reach it from the Game menu at any point. You can leave a comment with your score if you like, which we read before it appears.

How long does a game take?

A first run to a decent network is about forty minutes at normal speed, and you can wind the clock faster once you know what you are doing. The scenarios are shorter and have a stated goal. The open game runs as long as you want it to, and some players have taken companies well past 2050.

Does it work on a phone?

Yes. Every panel was rebuilt in August 2026 to fit whatever screen you have, and it is tested at fourteen different sizes from a large desktop down to an iPhone. It is still a game about reading a map of Britain and juggling a dozen windows, so a laptop or a tablet in landscape gives you an easier time of it.

Are the figures real?

The geography is real, the towns are real, the sequence of events is real, and the UK population figures follow Ofcom and ONS estimates. Every financial number is tuned so the game is enjoyable rather than so it forecasts anything, and the game says so in two places. If you want our actual research, that lives in our reports.

Are the rival companies real?

No. Every competitor is invented, with a name chosen to raise a smile from anybody who works in this industry. Any resemblance to a network currently digging up your street is entirely affectionate.

Does it collect anything about me?

Almost nothing, and we would rather tell you exactly what than say "nothing" and be vague about it.

Anonymous counters. The game adds one to a daily tally when a company is created, when the first town goes into build, at three points in the timeline, and when somebody retires. It records the date and which version of the game you played. It does not record your IP address, your browser, any identifier, any session, or anything at all about your company. We use it to see whether people get past the first screen.

The leaderboard, only if you choose it. When you retire you can put your score on the board. That sends the name you type, your score and headline figures, and a comment if you write one. Nothing is sent unless you press the button.

Your saves stay on your device. The automatic save, the slots, your chosen text size and your own top ten runs are all held in your browser's storage. Clearing your browser data removes them. Nothing about your saved games is sent to us.

There is also a suggestion box that opens your own email client, which sends nothing until you press send.

Can I play it offline?

Yes. In the Game menu, choose Play offline and the game and its soundtrack are kept on your device, so it works on a train or anywhere else with no signal. It is about seventeen megabytes. The leaderboard still needs a connection.

Can I suggest something?

Please do. Most of what has been added since July came from players, and there is a suggestion box in the Game menu that reaches a human. Several people have had their idea in the game within a week of asking.

While you are here

The game is a bit of fun. If you want the real thing, these are the pages that actually save people money.