One developer · Aarhus, Denmark
Games by Halfdan Harring
I'm a Danish indie developer who designs, codes and ships games alone — physics arcade games, quiz battles, roguelites and stranger things, for iOS and the web. This site is where I show them off and explain exactly how they're made.
- Games
- 7
- On the App Store
- 3
- Team size
- 1
Out now
All games →Shipped, live and playable today — on the App Store and in your browser.
Out now
Dolphin Beyond
Dive deep, launch through the surface, chain tricks and ride your speed from the ocean all the way into space.
Physics arcade iOS · Web
Out now
HeadToHead
The free football prediction game — call the results, outsmart your friends, climb the table.
Sports prediction iOS · Web
Out now
Quiz Fight: Guess What?
Live 1v1 trivia battles across 185 topics, powered by a library of 500,000+ questions that never repeat.
Competitive trivia iOS · Web
In the lab
The next games, built in the open. Each one has a public devlog as it comes together.
In development
Ragnaroll
Flick dice. Score hands. Survive Ragnarök.
Dice roguelite iOS · Web
In development
Big Chair
Live a life. Take the chair. Three careers, every card a choice, every run one swipe from the end.
Career roguelite iOS
In development
TinyTrack
Portrait-mode 3D drift racing — one thumb, one perfect lap.
Arcade racing iOS · Web
In development
Runish
The real world is the game board — a map-first GPS running game.
GPS running game iOS
From the devlog
All posts →How the games are actually made — engines, physics, App Store battles and honest lessons.
Craft
How I ship fixes to live iOS games in minutes with over-the-air updates
The OTA update workflow behind my games — what Capacitor + Capgo can and can't ship past App Store review, and how it changes live-game operations for a solo developer.
Devlog
Runish devlog: turning real GPS runs into a game
Devlog for Runish, my map-first running game — custom native Capacitor plugins for background GPS and HealthKit, Mapbox as a game board, and why async is the only honest multiplayer for runners.
Devlog
TinyTrack devlog: portrait-mode drift racing and the Blender car pipeline
Devlog for TinyTrack — why a 3D racing game in portrait orientation is worth the layout pain, how Rapier drives the drift model, and the Blender-to-game asset pipeline.
Who is Halfdan Harring?
A self-taught full-stack developer from Aarhus, Denmark, who ships complete products alone — from the first sketch to the App Store listing. Games are where the craft gets pushed hardest: custom physics engines, real-time multiplayer, native plugins, and store pages, all from one keyboard.