External Resources
Epyx Resources
The best online resources for Epyx history, game documentation, SID music, and preservation.
Fan Sites & Preservation
epyxgames.com
Dedicated Epyx fan site with company history, full game catalogue documentation, and preservation resources. An excellent starting point for any deep dive into the Epyx catalogue.
Lemon64
Community reviews, screenshots, and technical information for all Epyx C64 titles. Impossible Mission, California Games, Summer Games, and Winter Games all have dedicated pages with user ratings and comments.
SID Music
HVSC - High Voltage SID Collection
The definitive archive of Commodore 64 SID music, with full composer credits for all Epyx titles including California Games (Chris Grigg) and Impossible Mission. Downloadable SID files for local playback.
DeepSID
Browser-based SID player with subtune support. Essential for listening to California Games' multi-event score. Used by this site's music player. No installation required.
remix.kwed.org
Community SID remixes. California Games and Impossible Mission have confirmed remixes from multiple arrangers. A great way to hear these classic tunes given modern production treatment.
Game Databases
MobyGames - Epyx Publisher Page
Complete Epyx catalogue with full credits, screenshots, and cover art. The most comprehensive database of Epyx titles with developer, composer, and producer credits for every game.
Lemon64 - California Games
Dedicated Lemon64 page for California Games with user reviews, high-resolution screenshots, SID information, and community discussion. Includes download links to the original game files.
Lemon64 - Impossible Mission
Dedicated Lemon64 page for Impossible Mission with user reviews, screenshots, and technical details about the ESS speech synthesis implementation.
History & Analysis
The Digital Antiquarian - Epyx Series
Jimmy Maher's meticulous series of articles on Epyx history, covering the Automated Simulations origins, the Games series era, and the Lynx disaster. The definitive written history of the company available online.
Wikipedia - Epyx
The Wikipedia article on Epyx covers the full company history with citations. Useful as a starting point and for verifying specific dates, sales figures, and key facts about the company's history.
Speedruns
Speedrun.com - Impossible Mission
Active speedrun community for Impossible Mission with any% and category extension leaderboards. The game's puzzle timer makes it a natural speedrun subject with meaningful routing decisions.
Games Done Quick
GDQ archive contains Impossible Mission speedrun VODs from charity marathon events. Search the GDQ VOD archive for "Impossible Mission" runs. High-quality commentary and live performance.