Essays
These are full-blown essays, papers, and articles.
Presentations
Slideshows and presentation materials from conferences.
Interviews and Panels
Reprints of non-game-specific interviews, and transcripts of panels and roundtables.
Snippets
Excerpts from blog, newsgroup, and forum posts.
Laws
The "Laws of Online World Design" in various forms.
Timeline
A timeline of developments in online worlds.
A Theory of Fun for Game Design
My book on why games matter and what fun is.
Insubstantial Pageants
A book I started and never finished outlining the basics of online world design.
Links
Links to resources on online world design.
All contents of this site are
© Copyright 1998-2010
Raphael Koster.
All rights reserved.
The views expressed here are my own, and not necessarily endorsed by any former or current employer.
Обзор GSM/UMTS-телефона Sony Ericsson Hazel J20
Do you still have your old Sony Ericsson J20i in a drawer? Share your memories of using WhatsApp in 2012 in the comments below! whatsapp sony ericsson j20i
He slid the phone open. The keys clicked with a satisfying tactile precision that modern glass screens could never replicate. He navigated to the menu. The grid icons were charmingly retro. He checked the gallery: photos of his high school graduation, grainy and pixelated but full of heart. The keys clicked with a satisfying tactile precision
It was part of Sony Ericsson's "GreenHeart" range, made from recycled plastics and featuring low power consumption—a vibe that still feels relevant in 2026. Connectivity: He checked the gallery: photos of his high
ended years ago as Meta discontinued the app for older proprietary operating systems and Java ME (J2ME)
As of my last update, WhatsApp has ended support for many older phones, including many feature phones like the Sony Ericsson J20i, due to their inability to meet the app's growing requirements for security and functionality.
