We do code. And ship it.
XOR-A Binary Research is a small studio building apps, games and custom devices — from gear management to exam prep to original game design to build-to-order prototypes.
$ whoami
xor-a binary research
$ cat about.txt
we do code.
$ ls apps/ games/
rigbench/ teds/ corewarstudio/ kickroll/ crystalward/ nemesis/
// what_we_do
What we build
Apps
Mobile and server-side apps that solve real problems and make life and work easier. We scratch our own itch, then build the thing we were looking for.
Games
We build games to explore the line — how much fun it is for you, and for us.
Porting
We port between systems and platforms, so what we build reaches further than where it started.
./see our porting work →Build-to-order prototypes
Custom prototypes built to your brief, end to end: hardware, firmware, software and the server behind it. Currently focused on wearables and embedded devices. Got an idea? Let's talk.
./tell us what you need →// products
What we're building
TEDS
Exam training for shooters — offline prep for the PZSS shooting license exam, with simulations and a full ISSF module.
Available now ./open →
RigBench
A full inventory for your guitars, amps, and gear — specs, history, strings, and maintenance, tracked offline.
Releasing this week ./open →
NRG 2026
Offline companion app for NRG — a games, digital culture, and demoscene festival at the Poznań International Fair.
Live now ./open →
Core War Studio
Write Redcode warriors, watch them fight in a virtual computer, step through every instruction, and test them in tournaments — for Mac, iPad and iPhone.
TestFlight beta ./open →// games
Games
KickRoll
An upcoming game from XOR-A Binary Research. Coming soon — details to follow.
Game · Coming soon ./open →
CrystalWard
An upcoming game from XOR-A Binary Research. Coming soon — details to follow.
Game · Coming soon ./open →
Nemesis
An original game project from XOR-A, currently in development.
Game · In development ./open →// about
About XOR-A
XOR-A Binary Research designs and builds software with a research mindset — whether that means organizing a musician's gear, training someone for a licensing exam, or designing systems for a game. Small team, shipped products.
// contact
Get in touch
Questions about any of our apps, or interested in working with us? Reach out at info@xor-a.com.