Mastrowcorp
Mastrowcorp builds things.
We work with tech and we build stuff. Products, prototypes, websites, tools, and experiments.
Just a small team focused on making useful, interesting things and getting them out into the world.
What we make
Web products and useful tools.
How we work
Start small, test early, build fast.
What matters
Shipping cool things people can use.
Mission.
Build cool, fun stuff.
That means picking interesting problems, using tech well, and shipping things that feel simple, useful, and a little exciting.
We like prototypes, product ideas, weird experiments, and polished little tools that earn their place.
How things get built.
Usually it starts with an idea, becomes a prototype, gets tested, and turns into something real.
- 1
Start with the idea
Figure out what is worth making and what the first useful version should be.
- 2
Shape the scope
Cut away the noise and keep the part that can become real quickly.
- 3
Prototype quickly
Build something tangible fast so the idea can be seen, used, and discussed.
- 4
Test with real people
Learn what works, what does not, and what should change before going further.
- 5
Build and launch
Turn the promising version into a real thing that people can use.
Why this works
We prefer making something real early instead of over-planning it.
It keeps progress visible and gives good ideas a chance to become actual products.
Things we've built so far.
Some of the products, prototypes, and experiments we've put into the world.
NARNOK
NARNOK is our latest project, a turn-based auto-battler on Steam where players build universes, assemble alien lineups, and battle ghost teams.
Undeadlock
We built a beautiful website for Valves pre-release game Deadlock that has all the information you need to know about the game.
Govhack 2024 - AI-Powered Australian Style Guide Linter
This project aims to leverage AI technologies to enhance the application of the Australian Government Style Guide.
About.
Mastrowcorp is a small, build-first outfit working in tech. The focus is simple: make good things and keep shipping.

Dan Mastrow
Founder
Dan is a developer who likes building end-to-end products, prototypes, and web tools. Mastrowcorp is the place where those ideas get made.