I've never played EU3 but realized the older paradox titles from previous games have a good amount of quality to them so I was wondering how does EU3 compare to EU4? Is there any difference?
Are you talking EU3 vs EU4 or HOI3 vs HOI4? OPer, I think graphics and demention wise EU4 is better, but understanding the game and mastering it is definately alot easier with EU3. EU3 is its own game, but we better catch up and enjoy EU4, because you never know when EU5 might dropI'd hesitate to call one "better" than the other. HOI4 is more polished, and with the expansions has a lot more content, but HOI3 is a less railroaded game which feels more "organic" to me. HOI3 uses varying degrees of randomization (depending on which country you play) in selecting a new mission upon completion of the previous, while HOI4 has fixed mission trees; each method has its good and bad points. The games are similar in some ways, and very different in others.
Personally, I prefer the older game, but not by a huge margin, but you may want to save before completing a mission in HOI3 and reload if it hands you an impossible or stupid one (such as "Make Bohemia vote for us" for HRE Emperor, but Bohemia will ALWAYS vote for itself unless vassalized). HOI3 does need at least the first couple of expansions to fix some early wonkiness and fill out the voids in content, but the full game (including the Divine Wind expansion) isn't that expensive if you catch it on sale, usually sold in two parts: one with the base game and early expansions, and the last few expansions bundled as the second. HOI4 and even a moderate selection of DLCs will run you some serious cash.