[url=https://pcgamingwiki.com/wiki/Worms_3D ]Worms 3D[/url] (2003) is the only PC Worms game which is not available on digital distribution (barring the original versions of World Party and Worms 4: Mayhem).
Worms Forts: Under Siege (2004) has been released on GOG with some fixes [url=https://pcgamingwiki.com/wiki/Worms_Forts:_Under_Siege]according to PC Gaming Wiki[/url].

It should be noted that that while Worms Ultimate Mayhem (Steam) contains all Worms 3D and 4 levels, none of the Worms 3D weapons were ported.

UPDATE:
The forum omitted the entire first sentence from my post and doesn't allow adding PC Gaming Wiki hyperlinks — there's apparently nothing I can do.

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