Building apps since the App Store was new.

One developer, one company, one address. dsd 164 has been building and publishing apps from Amsterdam since 2010: for iPhone and Android, once even for Windows Phone, lately in the open. Over forty million downloads later, the garage is still shipping.

SINCE 2010 40,000,000+ DOWNLOADS USERS WORLDWIDE HQ AMSTERDAM

The road so far

From gun for hire to forty million

Sixteen years, one developer, one company. Follow the hectometre posts.

  1. 2008

    The App Store opens

    Apple invents the modern app. A Dutch developer takes notice: software you can hold in your hand, shipped straight to the whole world.

  2. 2010

    Gun for hire, Amsterdam

    Building iPhone apps for clients across the city, in the scene Mike Lee would dub Appsterdam. Magazines, clubs, shops, shipping firms, television: if it needed an app, it got a good one.

  3. 2011

    Snake '97 ships

    A pixel-faithful remake of the phone classic, released 22 May 2011. It crosses borders faster than any client project ever could, and it has not stopped since.

  4. 2012

    dsd 164 B.V. is founded

    A real company for a growing catalogue, named after its own front door: Dalsteindreef 164, Amsterdam. In December, Block 89 ships.

  5. 2010s

    Tens of millions

    The games spread worldwide, translated into dozens of languages, on iOS, Android and even Windows Phone. Apple and Google notice too: personal invitations, multiple times, at their offices.

  6. 2018

    The tools become products

    Lemmid, the content management platform built to run our own sites and services, reaches the App Store as an online toolbox.

  7. 2024

    Gran Fondo: Ride & Run

    A tracker for riders and runners: distance, elevation and the joy of going far, with the same no-nonsense stance as the games.

  8. 2025

    Into the open

    Auscultare, a libre Android player for podcasts and audiobooks, ships with its source code public. Premium Android development, Unix philosophy.

  9. 2026

    Still shipping

    Outburn 87 takes the catalogue racing. Same garage, same love, sixteen years after the first line of app code.

The name

Three letters, one number, zero meaning

Dalsteindreef 164

"dsd 164" is simply the company's front door in Amsterdam, written in the official ANWB typeface you see on Dutch road signs. It was chosen because it is internationally meaningless: the same name, the same sound, on every continent. Always lowercase, always pointing home.

The full story of the name →

The work

Sixteen years of shipping

Not a portfolio: an archive. From the Appsterdam client years (magazines, clubs, television, shipping, medicine) to the games the whole world plays. Built for iOS and Android, once even for Windows Phone, lately in the open.

Screenshot of Snake '972011Snake '97The retro phone classic. 40 million+ downloads and counting.Visit →Screenshot of Block 892012Block 89The handheld brick puzzle, rebuilt properly in 2026.Visit →Screenshot of Outburn 872026Outburn 87A retro pseudo-3D arcade racer with an endless sunset.Visit →Screenshot of Gran Fondo: Ride & Run2024Gran Fondo: Ride & RunRide and run tracker for people who like going far.Visit →Screenshot of Auscultare2025AuscultareLibre Android podcast and audiobook player. Source code public.Visit →
Screenshot of Lemmid Store2020Lemmid StoreFood ordering, launched in the covid days. Croissant Club was an original customer.
Screenshot of AppsterdamAppsterdamThe community app for Mike Lee's Amsterdam app-maker movement.
Screenshot of Smaak van RomeSmaak van RomeDutch-Italian magazine, brought to the tablet.
Screenshot of We love 2 shop (RTL)We love 2 shop (RTL)Companion app for the Dutch television programme.
Screenshot of NMT ShippingNMT ShippingThe shipping company, in app form.
Screenshot of Escape Club AmsterdamEscape Club AmsterdamApps for the Rembrandtplein nightlife institution.
Screenshot of Jantjes VerjaardagJantjes VerjaardagThe Amsterdam party, in your pocket.
Screenshot of ShopcatShopcatA 20-million-record retail index, searchable on a 2010 phone with lackluster connectivity: the optimised index shipped inside the app. Groundbreaking then. With Locatus B.V.
Screenshot of Heart HealthHeart HealthMedical risk calculators for cardiovascular care.
Screenshot of Blood Stream GuardiansBlood Stream GuardiansConcept game: players fight bad cholesterol to live the day, raising cardiovascular risk awareness.
Screenshot of Leyweg, Den HaagLeyweg, Den HaagManagement and statistics apps for the shopping street.

Live today

Three games, three sites

The catalogue is not history: it is running. Each game has its own site, built by the same hands.

Guides

Take an exit

Five short reads about the name, the years and the principles.

FAQ

Asked and answered

What is dsd 164?

The Amsterdam app company of developer W.L. Middelkoop: building and publishing apps since 2010, formally founded as dsd 164 B.V. in 2012. See the road so far.

Why is it called dsd 164?

It is the address of the headquarters: Dalsteindreef 164, Amsterdam. Deliberately meaningless internationally, always lowercase, set in the Dutch road-sign typeface. Learn more.

Which apps does dsd 164 make?

The games Snake '97, Block 89 and Outburn 87; Gran Fondo for riding and running; Lemmid tools; and the open-source player Auscultare. Before those: a decade of client apps, from RTL television to shipping. See the work.

How many downloads does the catalogue have?

Over 40,000,000 worldwide, led by Snake '97 (in the stores since 2011). Learn more.

Do the apps show ads or track users?

No. Free means free: no ads, no in-app purchases, no tracking, tiny downloads, offline play. Learn more.

Does dsd 164 build apps for clients?

That is how it all started (the Appsterdam years); today the focus is the own catalogue. For projects and collaborations, let's talk.

Which platforms do you build for?

iOS and Android throughout, Windows Phone back when it existed, the web, and since 2025 open-source releases. Learn more.

Where is dsd 164 registered?

dsd 164 B.V., Dalsteindreef 164, 1102 WX Amsterdam, The Netherlands. Chamber of commerce (KvK) 53888170, VAT NL851059752B01.

Your turn

The next app could be yours

Ideas, collaborations, skyplanes, or just a good story about 2011: the door at Dalsteindreef 164 opens from willem.com.