Hello,
yes the worm is fun, you can even crush tanks with it :D
When you cannot start the map due to "incompatible with this version of openRA" then you have d2kA a map which was made for a previous release of OpenRA.
The last "official" release of d2kA, where all the maps, including VsMission maps were playable was OpenRA 20200503. You'd have to install that version of OpenRA to play the maps. (See downloads)
Also N.N did an update of the d2kA skirmish maps to the OpenRA version 20210321 which is basically bug free, (see downloads section) so you can install that version of OpenRA as well if you only care about the skirmish maps.
The current version of OpenRA is 20231010. Unfortunately, those older maps are not compatible with that version of OpenRA, sorry.
SirCakealot
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