Introduction
Herzog Zwei was something of a cult hit back in the day. Although not a commercial smash, it had a base of fans who spent countless hours battling for supremacy. I've seen it called the first real-time strategy (RTS) game a few times but never bothered to check the validity of that statement. It doesn't really matter, it was an incredibly fun game that has been overlooked by all the Genesis collections and online retro-gaming services.

Eisfrei is a ROM editor for Herzog Zwei. It has a mostly-friendly interface that makes editing incredibly easy. No messing with hex editors, decoding values, or any of that. If you can click and type then you can hack away to your heart's contentment.

This first release of Eisfrei allows editing of text, unit attributes, order attributes, and tile-based graphics. There are of course many other things that can likely be edited in the game. Whether I go back to find & implement them largely depends on the popularity of this program.


Screenshots
Thumbnail images, click for full-size:
Main Screen Order Editing Unit Editing
Text Editing Sprite List Tile Editor
Demo - Alternate Font Demo - 100 Year War Edition Demo - Bloodbath Edition


Download
Program & Source Code
Eisfrei v1.0

Demos
Eisfrei Demo Collection: Contains an assortment of .ips patches that were used to test Eisfrei.

Dependencies
.NET Framework 1.1 (if you have XP or Vista then you probably already have this)



Documentation
Documentation - updated with every major new release
Tutorial [odt] [pdf]

Technical Reference
Random notes used to develop Eisfrei


Support
Everything on this site is free. I'll never use pop-ups or randomly generated ads to support it. If you've found something here to be especially helpful or entertaining please consider making a small donation. This can be done through a secure PayPal transaction or by purchasing one of the related items below. Thanks for visiting my little web page! 
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Legal Notes


Unless otherwise noted, all content is copyright (c) 2008 Hugues Johnson and may not be redistributed in any form without express permission.

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