Alright this isn't exactly perfect but it should help me explain myself. Uploaded with ImageShack.us The problem with rs is that the time it takes to get a level is an exponential curve the same way that experience required is. Now it make sense for the experience required to be exponential because you need it to be more of a challenge, what doesn't work is having time required be a sharper curve. In current game the xp rate reaches a maximum, which for most skills has reach a level which people are satisfied to achieve level 99. 120 is such a huge distance away that the current caps wouldn't allow you to level in a decent amount of time. What needs to happen to fix that is to move the exponential growth in time require into experience required. There is no reason that time required shouldn't be a linear function. In my ideal model the say the time for 98 - 99 is 10 hours, the time between 119-120 should be say 20 (all numbers are arbitrary), instead in the current live game if 98 - 99 is 10 hours 119-120 could be 100 hours. This scale of time required doesn't fit the play style of the game and the majority of people wouldn't partake because the time between achievements becomes so large. World of Warcraft has a near perfect example of leveling curves, the amount of xp required can grow by as much as 55% at the upper levels, and the amount of xp you gain per quest scales at a near same rate. This allows for the time between levels to grow, so you have to work for the next one, but not outpace the amount of experience required. If WoW had a system where level 40-41 was 2 hours and level 84-85 was 100 hours it wouldn't be nearly as successful. This is because the game is based on end game content, while Runescape is more about the process of getting to the end. Another problem lies in this because the player base is moving away from the Runescape style of leveling to one where end game actually means something to many people. This is why a total rehaul of the system would be required. If your interested in this, I've also come up with a way to overhaul smithing/crafting/mining to suit a higher level cap, but that can be a post for a later date.