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- Official guide – contains details of the research tree, units and structures, as well as a beginners guide to the game
- Nameless guide – a website containing lots of definitions, build orders and things like that
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Video walkthroughs
Note: Over time these videos will obviously become somewhat outdated, due to Warzone's ongoing development. However they'll always be great resources for beginners.
- Fast Campaign Walkthrough by NoQ
- Let's play Play Warzone 2100 – a video walkthrough of the entire Campaign. While it's a little dated now, it's still a great set of videos if you're new to the game.: English / German – detailed walkthrough of the campaigns
Other resources
The game includes a set of HTML help files - find the "WarzoneHelp" folder and there's a bunch of HTML files in there.