They play just fine, probably the same way you remember them! These re-releases all come by way of a well-tuned DosBox build, so they play the way they're supposed to. The only real obstacle is being spoiled by the high-definition graphics and smoother interfaces we have these days. But I really do hope that better availability of these might lead to new remakes. For example the Atari WWI game Wings! got a remake not too long ago, and by all accounts it's a faithful adaptation of the original to modern 3D visuals.
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There are only forty people in the world and five of them are hamburgers.
-Don Van Vliet (aka Captain Beefheart)
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