DnD5 seems more popular because it is the one that brought in a lot of newer players from the younger generation, that in itself does not make it better, many youth are just to lazy to work out how the old version works. Some of the best rpgs have always used the 3.0 version because the OGL [open game license] provides so much more to work with then 5.0. Modders could do a lot more with BG3 if they use the 3.0 set up. Yes there is the legal question- is modding a 5.0 edition to be a 3.0 legal? My understanding is that because it is licensed by Larian Games, you would not be able to make the mods paid, otherwise you can mod it?
That still sounds like a whole lot of "no evidence to suggest that people don't like 5e" ^.^
Might it interest you to know that since 5e launched, there hasn't been a single major game launched that uses 3.0 or 3.5?
Might it also interest you to know that 5e is, as the official edition, older and longer running now that 3.0 OR 3.5? It has actually had more time as the official game edition than any other edition, in fact! It's not the 'new hotness' - it's the edition that has had the MOST staying power of ANY D&D edition, at this stage. Yes - it's actually been that long, believe it or not... and unlike 4e, which showed its lack of popularity and was functionally scrapped within two years, this one has drawn people in and retained old players alike, and has shown its longevity.... whether you personally like it or not.
As an aside, I'm curious, to leucrotta - What part of 5e are you under the impression has monsters and PCs not playing by the same rules? They do play by the same rules, they're even built using the same rules and strictures, thee same progression, the same rules governing hit dice and proficiency bonus, etc., their abilities and saves are derived in the same way, their damage is derived in the same way... They absolutely play by the same rules as player characters do.
That is why i am asking here. @Larian are we allowed to mod the game to 3.0? Is it feasible? Since the game is still in early access, this could be useful for modders going forward.... i am myself not a modder, but i plan to learn to make mods. Thanks
At the end of the day, your question is simple: Mods are Mods - there is no legality or permission involved because they are mods. You don't need any license or permission to mod a game into something else, because it's protected, legally, as transformative work, or fair use laws, or the equivalent rules in your own country. You can mod the game to be tits and arse nudie sex adventure if you want (SatSA for NWN was amusing ^.^) - you don't need permission.
The issue, rather is that Larian have already shown that they really don't like D&D much, and would rather not use it, don't understand it, and would rather keep the game as closely aligned to their original game engine designs as they can rationally get away with without alienating too many fans (and they've pushed that boundary hard before beginning to reel back)... So if you're looking for a 3.5 D&D experience, this is most likely not the game for it, and you'd do better finding another game that's more like what you're after too begin with. Some of the first mods out, and some of the most popular mods currently are mods that bring BG3 more into line with 5e rules than it currently is - a complete 5e conversation/fix mod is currently being developed and updated, and is already one of the most popular/in demand mods readily available.
If it's what you want to do, go for it, by all means - but it would be an extremely large project for relatively little gain.