I think it would be nice to add bonus to purchased RE,
for example, if you buy 1010RE for 6.99$USD, you should add 10% (101 RE) more of RE you get after purchase,
if you go for 4040RE for $25.99USD, you add 10% (404 RE) more, and so on...
I think it's not much, but still something nice to do. You could pick a date when you get the opportunity to get the purchase bonus RE, like once a week/month, or first/last day of a month.
Also another idea regarding PK, It will seems like I'm complaining but its true, yesterday when I was leveling and also helping new players, we got killed by high level player, I stopped counting how many times we died after we got killed 3 times in a row (it happened in Naurchen), my suggestion is to turn the PK MODE off in low leveling zone maps, for example for Yllse
Sedless
Naurchen
Big Tree (also know as The Great Jungle)
Light Dungeon
Most of people will have problems continue playing this game if they get PK'ed right at the start of their journey with Dragon Raja, they won't even get to know how fun this game is, especially low level players, I wouldn't say anything if the opponent would be at the same level as me or at least close to it (10-20 levels difference), still have a chance to beat him, but any player CC and above killing players level 35-50, it's not fun and shouldn't be allowed at the first place, maybe before when we hot hundred of players, but not in current time.
If turning the PK mode off on low leveling zone maps doesn't make sense, maybe you should think of something that would replace it, sure I can give you few ideas below
1. Level 100 and below only
- level difference: if the player is 10-20 levels higher than you, he can't kill you in any leveling zone (or low leveling zone - read the up part)
- add safe level: easy way saying you can't get killed by another player until you reach specific level, f.e. level 60/80
- add buff NPC in town: the buff should make you unkillable for any other players, level 60/80 and below only
Pretty much that's it for me, hope that helps you, take care guys and help new joining players.
