What has been your favorite Mu so far and why? What were the aspects that made the server awesome? You can talk about multiple servers or features of course.
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My favorite non-reset server so far has been Mu Philippines (Mobius) because it had a large active and friendly player base and a thriving economy; it made you feel at home, and it tickled your fantasy. I still remember it as one of the most fun Christmas periods I had in games (next to Rose Online), and maybe in general as well. There were firecrackers everywhere for the holiday period, and loads of active and friendly people online. I can't place my finger on it, but there was a huge difference between the official Mu Global and Mu Philippines. In both the items were hard to find, but in Mu Philippines you actually felt the improvement while you were grinding. In Mu Philippines you could frequently look at the market after a day of gaming, and feel like you could buy something new. Not something huge, but a steady incremental improvement, which felt very satisfying. For instance, going from a Gladius to a Crescent Axe to a Morning Star. Not all in a day or in a week perhaps, but not in a month either, a healthy in-between. Whereas in most servers, the change is usually from shitty weapon to really good weapon; usually received from high level players who have a full vault and don't really care about the item. I know because I do this as well.
Especially apparent in Mu Global, you felt immersed into the Lord of The Rings fantasy world [Did you know Mu is inspired by LOTR?] because you had to explore the entire map from monster to monster. You had no other choice because the next level of monsters was usually too strong. Sadly, you can skip entire maps and monsters in nearly all Mu servers nowadays.
TL;DR: Economy, population, sense of fantasy & significance.
[Anyway, OldSquad has a lot in common I think. Not the economy, but the people and the sense of significance. I mean yesterday we were singing the tunes of the Pokémon intro in the /post chat. It has probably been 10 years since I've had such a wholesome moment in an MMORPG. I like the grind in Mu, but only if it doesn't feel like a grind. If it is stale gameplay (a bit too hard, or too easy) I usually have fun for about a day, and stop playing altogether because I felt like I wasted loads of time. OldSquad doesn't feel like that even though the economy is a bit broken, something is definitely right. My guess is that its the steady progress experience wise and the nice people who play it. I'm having fun.]
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My favorite reset servers, I guess, have been my own (The Lord of Mu - Trailer) and Mu Israel.
On my own private server I 'exponentially' increased all of the monsters' strength so you basically needed resets to be able to kill monsters in Devias, etc. My theory to why was fourfold:
The maps are freaking beautiful pieces of art that are meant to be explored. Most reset servers are just about picking a spot and staying there for the rest of your days, how silly is that? I know it's addictive, I've done it before, but it's a waste. Hunting should be like Mu Global, in which you can only beat the next category of monsters after some decent leveling or better gear, and not just because your level is now high enough to warp to a new map.
People don't like to play on empty servers or predominantly AFK servers. An MMORPG is meant to trigger your sense of fantasy and exploration in a social setting. You can't hunt dragons with friends IRL, so that's a gap Mu should fill. So, when people are required to grind in the same map (or couple of maps) for a while, more people come across each other and the sense of community improves.
The challenge. Reset servers are usually easy. But it should be possible to create a hardcore Mu (Philippines or Global) experience with resets. For instance, being able to have a reset even while wearing a leather set +5+8; a server where Dragon Armor feels special again, and Phoenix is godlike. (This is hard to tweak though, because at one point too many stats points render items redundant.)
You can't AFK if you want to beat significantly better monsters. You have to work for significantly better gear.
I also individually, proportionally, and mathematically increased all the items strength, and level from where it drops, according to the amount of items a class has and the amount of monster levels. Now, the difference in defence between Leather and Bronze armor is insignificant. I changed all these stats so changing from one to the next kind of armor actually made a difference. I also tweaked the strength of different kinds of weapons. For instance, an axe had way more base damage and skill damage than a sword, but was noticeably much slower, and used way more mana. I even added a skill to a Flail, small axe, kris, etc. to make it useful and valuable. Oh, and the more resets, the less points per reset you got. I tried everything to make a reset server as challenging and long term as possible.
I know I'm tooting my own horn right now, in the hopes of inspiring ADMIN to 'steal' some of the ideas above. I know it works, but it needs a great server to pull it off. I wasn't capable enough. Also, GlobalMu (the private server) has also increased monster strength so resets are needed for higher maps, and it works well. However, 80% of their online players are AFK and nearly all items are useless as you get the best super fast. It's not the wholesome experience as in OldSquad no reset.
Lastly, Mu Israel. This one goes way back. It was super fun because of the 200 points per reset and stats removed. And there were BOKs+1, and bless and soul in shop so you had to grind for money in order to buy those and create your favorite excellent option set +11. And how did you we grind for money? There was a bug in some Tarkan spot where the more people were in that same spot, the more the amount of zen dropped from one monster. So if one player was there only 30k zen dropped, but if 25 people were there, 3mil zen dropped. This was a bug (I think) that felt like a feature. Everyone was together in that one spot, and that was awesome. Hence the argument number 2 a couple of paragraphs above. Anyway, I'm not saying having BOKs or jewels in a shop is necessary for a good server with resets. I'm saying it for inspiration, to think about what mechanism behind it makes it fun.
I'm beginning to sound confusing for myself, so here I stop again. Looking forward to reading what great features I haven't come across before.