Games by Harring | Indie Games by Halfdan HarringThe official games portfolio of Halfdan Harring — a Danish indie developer building physics arcade games, quiz battles, sports prediction games and more for iOS and the web. How they were made, why, and what shipped.https://gamesbyharring.com/enHow I ship fixes to live iOS games in minutes with over-the-air updateshttps://gamesbyharring.com/devlog/ota-updates-shipping-fixes-without-app-review/https://gamesbyharring.com/devlog/ota-updates-shipping-fixes-without-app-review/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.Mon, 17 Aug 2026 00:00:00 GMTRunish devlog: turning real GPS runs into a gamehttps://gamesbyharring.com/devlog/runish-gps-running-game/https://gamesbyharring.com/devlog/runish-gps-running-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.Tue, 04 Aug 2026 00:00:00 GMTTinyTrack devlog: portrait-mode drift racing and the Blender car pipelinehttps://gamesbyharring.com/devlog/tinytrack-portrait-drift-racing-blender/https://gamesbyharring.com/devlog/tinytrack-portrait-drift-racing-blender/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.Tue, 28 Jul 2026 00:00:00 GMTBig Chair devlog: designing a career roguelite you play with one thumbhttps://gamesbyharring.com/devlog/big-chair-designing-career-roguelite/https://gamesbyharring.com/devlog/big-chair-designing-career-roguelite/Devlog for Big Chair — how Reigns-style swipe decisions, flick mini-games and a data-driven career engine combine into runs through a footballer's, rock star's or founder's life.Tue, 07 Jul 2026 00:00:00 GMTRagnaroll devlog #1: flicking real 3D dice with Three.js and Rapierhttps://gamesbyharring.com/devlog/ragnaroll-3d-dice-three-js-rapier/https://gamesbyharring.com/devlog/ragnaroll-3d-dice-three-js-rapier/First devlog for Ragnaroll, my Norse dice roguelite — why the dice are real rigid bodies, how Rapier and React Three Fiber run the table, and the fight to make a flick feel fair.Thu, 18 Jun 2026 00:00:00 GMTQuiz Fight: how I generated and curated 500,000+ trivia questions with AIhttps://gamesbyharring.com/devlog/quiz-fight-500000-questions-ai-pipeline/https://gamesbyharring.com/devlog/quiz-fight-500000-questions-ai-pipeline/The making of Quiz Fight's content engine — an AI generation and validation pipeline that built a 500,000-question library across 185 topics, and the live 1v1 duels it powers.Tue, 12 May 2026 00:00:00 GMTHeadToHead: shipping a real iOS game with React, Capacitor and Firestorehttps://gamesbyharring.com/devlog/headtohead-shipping-ios-game-react-capacitor/https://gamesbyharring.com/devlog/headtohead-shipping-ios-game-react-capacitor/The making of HeadToHead, my free football prediction game — one shared TypeScript engine for app and server, Firestore for live leagues, and a 30-second core loop.Tue, 14 Apr 2026 00:00:00 GMTHow I built Dolphin Beyond's deterministic physics engine in pure TypeScripthttps://gamesbyharring.com/devlog/dolphin-beyond-deterministic-engine/https://gamesbyharring.com/devlog/dolphin-beyond-deterministic-engine/The making of Dolphin Beyond's engine — why determinism was the first decision, how it powers replays and cheat-proof leaderboards, and how one core ships two different games.Thu, 05 Mar 2026 00:00:00 GMTWhy I build games alone — with web technologyhttps://gamesbyharring.com/devlog/why-i-build-games-alone-with-web-tech/https://gamesbyharring.com/devlog/why-i-build-games-alone-with-web-tech/The manifesto behind Games by Harring. Why one Danish developer ships complete games solo with TypeScript, React and Capacitor instead of a game engine and a team.Tue, 10 Feb 2026 00:00:00 GMT