1.30.0

• Twelve Pacific islands join the map: Honolulu, Guam, Koror, Majuro, Port Moresby, Honiara, Nouméa, Suva, Nuku’alofa, Apia, Pago Pago and Papeete. The cables across the Pacific now stop where they really land, and a POP on an island splits a long crossing into shorter hops that each carry more: California to Sydney goes from 400G to 1.6T per wave via Honolulu and Suva, Hong Kong and Manila to Los Angeles from 400G to 800G via Guam, and Santiago to Sydney from 400G to 800G via Tahiti. Twelve new cables, among them SEA-US Later, Echo-Chamber and Coral Sea Shanty, link the islands, and the old ones gain island stops. Only islands with a real exchange today get one: Honolulu, Guam, Suva, Nouméa and Honiara. Island telcos from Hawaiian Telecombo to Never Too Atoll join the networks, PacNOG meets in Suva every December, Guam, Port Moresby and Honiara have unreliable power, Tonga’s cable has a volcano for a neighbour, and a new scenario, Stepping Stones, asks you to hop the Pacific at 1.6T.
• Big networks are snappier again: working out each day's traffic takes about a third less time on phones and half on desktops, so game days and clicks pause for less. Traffic goes exactly where it went before, and the game makes far less garbage for the browser to clean up.
• Your own subsea cable can no longer be longer than any optic can light (#88). New York to Sydney now says so before you pay, instead of after the ship comes home. Calling off a cable while it is still being laid returns most of the price of the part not laid yet, and an unusable cable from an older save goes back for a full refund.
• Your own IX can now live in either building of a two-site metro, or in both with a second switch, so a dark building no longer takes your exchange down (#36). The LAG buttons that did nothing on your own IX are gone.
• Upgrading the only router in a POP that has nothing plugged in yet no longer opens a maintenance window or a NOC warning (#105).
• Declining a loan offer clears the bank badge right away, even while the game is paused (#104).
• The 3.2T transponder now falls back to 1.2T between 4,000 and 5,500 km (6,000 to 8,250 km subsea), like the 1.6T one, instead of dropping to 800G (#107). A bigger optic now carries at least as much as a smaller one at every distance.
• Parallel waves of different sizes now show each size on the map, like 800G + 400G, instead of a misleading 2 × 1.2T (#56).
• Picking a subsea route from a city without a cable landing, like Oslo, now names the nearest landing station instead of saying its cables reach "nowhere" (#50).

1.29.0

• Big networks lag a lot less: on a network with a hundred POPs and a thousand peering ports, the NOC dashboard opens six times faster, the side panels three times faster, and each game day takes about a third less time. The map needs about a third fewer drawing steps per frame, and open panels only update what changed, which keeps them smooth and lets the traffic bars glide to their new values. The connection and customer lists in the NOC dashboard show 100 rows at a time, with a button for more. While the game is paused or animations are off, the map is only redrawn when something on it changes, which saves a lot of battery on phones. On a phone, the map also rests while the NOC dashboard fills the screen, so scrolling it stays smooth.
• Africa grows from five cities to twenty-six, across nineteen countries, and a new scenario, Cape to Cairo, asks you to cross it. New: Dakar, Abidjan, Accra, Douala, Kinshasa, Luanda, Casablanca, Algiers, Tunis, Djibouti, Addis Ababa, Mombasa, Dar es Salaam, Kampala, Kigali, Maputo, Durban, Windhoek, Lusaka, Harare and Gaborone, each with its own IX. Overland fiber across an African border costs twice as much, and Kinshasa, Lusaka and Harare have unreliable power.
• Brazil now has all forty IX.brrr locations, from Manaus to Lajeado, so you can build a real national network. Fiber into the Amazon costs twice as much and its repair crews go by boat, Oi Oi, TIM-TIM Mobile and Brisanada join Brazil's networks, and a new scenario, Order and Progress, asks you to peer on 20 IX.brrr exchanges.
• Series of Tubes now speaks Portuguese (Brazil). The game follows your browser's language the first time, and you can switch to Português under Settings or on the title screen.
• Come chat with other players in the new Series of Tubes Signal group. It's linked from the title screen, the menu and How to play: share screenshots, report bugs and argue about peering policy.
• RouteScript speaks more BGP. prefer transit and avoid transit set which upstream goes first, like local-pref, prepend transit PROVIDER 1-3 moves part of an upstream's traffic away, the way AS-path prepending nudges the rest of the internet, and protect customers routes business traffic first when links are congested, so home users take the hit instead of your SLAs. A new Optimize button drafts a script from live traffic and points out networks you could reach over an IX or a PNI instead of transit.
• Twelve more Latin American cities: Montevideo, Asunción, Córdoba, La Paz, Quito, Medellín, Caracas, Guatemala City, San José, Querétaro, Monterrey and Guadalajara. Moviestar, Liberty Latte America, Antelope and Tiger Mobile join them, and Salvador and Montevideo get cable landings.
• Seven new cables around Africa (ACE of Spades, SAT-3-Legged Stool, MainOne-Track Mind, Mint Tea West Africa, Set SAIL, Sea-Comedy Hour and Dare-Devil-1), and the existing ones now stop in the new cities. Set SAIL and SACS-y Cable link Brazil to Cameroon and Angola, and Sea-Comedy Hour links Djibouti to Mumbai. Liquid Lunch Networks, Sea-Comedy Networks, Angle-a Cables, Djibouti Calling, Empty-N, Air-Tell Africa, Ethio-Tele-Calm and Atlas Shrugged Telecom join the networks.
• Hamburg and Munich join the map, with the Moin-IX and the Brezn-IX. Stuttgart and Frankfurt are back where they belong on the map, with Stuttgart between Frankfurt and Zurich instead of halfway to Prague.
• Swapping router models now sells the old ones on eBuy for 30% of their price, and removing a router does too (#82). A POP takes one swap a day, so a double click no longer buys two upgrades, and optics and waves now say which port speed they need instead of naming one model.
• Fiber between nearby cities bends gently again instead of looping wide around the neighbourhood, so dense regions like Toronto, Ottawa and Montreal stay readable.
• The game no longer gets slower after a long pause. The money that floats up from your cities on payday kept piling up off-screen instead of fading, hundreds of them on a big network.

1.28.0

• Belgium and Luxembourg join the map: Brussels, Oostkamp and Bettembourg (#79). Belgian POPs and transit cost more, and Belgian homes stay with their two big ISPs unless you run an ad campaign there. Telenyet, Proxyminus, B.I.G.S., Citrus Belgium and CityMess join the networks, a new cable connects London to Oostkamp through some very busy fishing grounds, and Bettembourg's cooling depends on a steady supply of waste wood.
• Four new cities in North America: Kansas City, Calgary, Vancouver and Ottawa (#76). Canada gets two more big networks, Tell Us and Bodgers Communications, which you also reach through the Tier 1s they buy transit from. Ottawa's power grid is about as reliable as you would expect, and Canadian fiber has a new natural enemy.
• New waves can join any route you already have between two cities, so two waves can run on the main route and two on the diverse one (#77). Each extra route shows up as its own choice, priced like the route it joins.
• Embedded caches can now sit in either building of a two-site metro (#69). A new box goes to the building with fewer of them, you can move boxes between A and B in the Peering tab, and a dark building only takes out the boxes inside it.
• Reach in the top bar no longer rounds up to 100% when it is just short, and the Goals tab now says why you are not Tier 1 right now (#73). Tier 1 needs more than 99.9% reach, so one small network out of reach is enough to lose the title.
• Customers in Russian cities no longer get unhappy because of Goggle's throttling (#70). People there simply get, and ask for, half as much Goggle video, so a well-built network serves the whole city again and the throttled half no longer fills your links.
• Incidents now come first in the NOC, with the ones you can fix in one click at the top (#63). No more scrolling past hot ports and congested links to replace a broken optic.
• Opening a link from the NOC on mobile now closes the NOC sheet so the link details are visible.

1.27.0

• New "Leased lines" tab in the NOC dashboard shows which leased waves, fabric circuits and dark fiber IRUs between your POPs you could replace with cheaper capacity: leased dark fiber, your own fiber or your own subsea cable. Each option lists the up-front cost, the monthly cost, how much you would save and when it pays for itself, with a button to plan the build.
• You can now upgrade, grow and cancel transit, PNIs, IX ports, cache boxes and fabric ports straight from the Connections tab of the NOC dashboard. Each row offers the next port size and another LAG member at the same prices as the POP panel, and cancelling asks you to confirm first.
• DKNOG in Copenhagen joins the conference calendar every March.
• A PNI in the customer’s city now meets their local-breakout requirement while your network is Tier 1 (#20).
• Customers no longer ask for independent routes where the available cables cannot provide them. Impossible diversity requirements in older saves are removed.
• A deal’s “Go there” button takes you to a required city without a POP, instead of returning to a city you already serve.

1.26.1

• Subsea cables no longer disappear when you zoom in on the map (#49).

1.26.0

• Customer levels now go up to 13 instead of 4. Every new level asks for more peak traffic, POPs and continents, ending at 50 Tbps and 80 POPs on six continents, and each one unlocks new customers, gear or deals. Reaching level 13 earns a new legendary badge.
• Seven new router models arrive between levels 5 and 13, including the first 3.2T routers with 3.2T ports and 12.8T waves. The Absolute Unit 3.2T is the main upgrade; whitebox, licensed, deep-buffer, Finnish and budget side-grades sit next to it.
• Paid-peering giants now give you a free PNI once you are big enough. Doitsche Telekomm gives in at level 6, then Voda-Phony, Tel-Mess, Etis-a-lot, China Moble, Du-opoly and Ooh-redoo.
• Loans got stranger, and good ones got harder to get. Your credit rating now adds a
  risk premium to the interest rate, the big banks only lend to strong ratings, and a
  loan worth more than five months of revenue also takes 2–8% of your revenue until
  it is repaid.
• Your own subsea cables now run much faster optics over long distances (#66). Subsea fiber is built for its whole route, so optics reach about half as far again as on land: Paris–Ashburn gets 1.2T per channel instead of 400G, and the 1.6T transponder gains a 1.2T long-haul setting on land too.
• Leased subsea waves now follow the same physics as your own cables (#68). A wave can only be as fast as its cable's length allows: transatlantic still takes 6.4T, the longest transpacific cables top out at 400G or 800G. Waves you already have keep running.
• You can lay your own subsea cable between two landing stations that also share a landmass, like Marseille–Singapore or Cairo–Palermo (#67).
• Declined PNI requests no longer repeat over and over behind an open window such as a DE-KICKS quote. Buttons hidden behind a window can no longer be pressed with the keyboard, and a declined PNI now shows why straight away instead of leaving its button there.
• New customers at the higher levels: esports world finals, sovereign cloud regions, cloud gaming platforms, metaverse platforms, AGI labs and Mars mission ground stations.
• Traffic keeps growing as you level up. Levels 5, 8, 10 and 12 each start a new era (4K everywhere, cloud gaming, VR, AI agents) that raises how many eyeballs every city wants.
• New optical gear for big networks: ROADMaster 9000 C+L line systems with 128 channels, Sienna WaveMagic 3.2T transponders, and eight fiber pairs in your own land trenches. Your own exchange gets a 102.4T fabric and scrubbing goes up to 100T.
• The "Next level" hint keeps names like Edge Lord 400 readable instead of lower-casing them.
• Your own subsea cable now runs beside the existing cable on its route instead of looping far out to sea (#64). Leased and own fiber next to a busy trench no longer swing out in giant loops either, on any route.
• New lenders: Ballooney Brothers (nothing to pay until it all comes due at once),
  Stormy Weather Lending (every open incident adds 2% to your rate), Peer Pressure
  Partners (you repay with 30% of your transit bill), Horoscope Holdings (the stars set
  your rate each month) and Papa Pizza Capital (cheap, but every incident means pizza
  for the NOC).
• New loan conditions: an odd number of POPs, no building in Bude, no diesel
  generators, no new links on a Friday, no Goggle caches, a job for the CEO's nephew
  and a yacht for the chairman.
• The in-app "What's new" is shorter: the first sentence of each change, at most
  five, with a link to the full release notes on GitHub.

1.25.2

• Tier 1 networks can lay their own subsea cable (#22). Pick two cities with a
  cable landing station, pay a frankly rude amount of money, wait while a cable
  ship crosses the ocean, and own up to eight fiber pairs outright. It pays for
  itself in a few years if it replaces enough leased waves. Whales may cause
  delays.

1.25.1

• Once you have half a billion in the bank, the banks stop sending loan offers
  (#52). They come back if your cash drops below that again.

1.25.0

• Your own trench can carry more than one fiber pair (#35). Once a ROADMaster
  9000 has all 64 channels lit, light the next pair: another ROADMaster and
  another chain of amplifiers for 64 more channels, up to four pairs.

1.24.0

• New scenario: Flood Season. Amsterdam in peak botnet season: a DDoS flood
  every few days, a third of them in the terabits and growing all year, on
  top of everything else that breaks. Hold 20 floods, 5 of them over 1 Tbps,
  with the city under attack still getting 97% of its traffic. Expect smart
  toasters, sentient fridges and one very determined printer.
• Fixed: when a DDoS attack started while another was still running, the
  first one ending could wipe out the new one early.