Put simply, 100 Mist per day is enough for -one- T2 run, assuming no deaths and a good party. That roughly comes out to an hour of playtime per day unless you buy into the Crowns:CE exchange system... which is what most players are doing. This would be fine if the Crown:CE market was stable and easy to enter/stay in, but it's not; in fact, I would argue the complete opposite: that it encourages "unsportsmanlike" mercantile behaviors that will hurt the game in the long run.
There are no checks and balances to the Crown:CE exchange. Crowns are essentially infinite, but Crystal Energy is not. What this leads to is a glut of crowns since Crystal Energy is consumed far more quickly than crowns are. This causes most paying users to just hoard CE and not buy into the Crown Exchange, while the few that do charge "too much" for free users.
Problems of the exchange in bullet format:
-100 CE already costs more than what you make from 100 energy in T1.
-100 CE will eventually cost more than what you make from flawless King Jelly farming.
Suffice to say, anyone that buys into the Crown Exchange is now also tied into a very sensitive and very unenjoyable fear of "wasting" Energy by not making a profit during their runs. This leads to planning runs just to make sure they can play for more than an hour (which more or less amounts to only playing when you have a stable King Jelly party).
This is a problem. This constant fear of not being able to play the game (due to not profiting from CE-funded runs), makes people not play the game. It's a vicious cycle: "I can't keep playing if I don't make X amount of crowns, so why should I do anything but Jelly runs with my guild? I'll just wait until they log in... in a few hours... guess I won't play."
The Energy system needs a solution such that:
A) Free users can play for longer durations.
B) Users are not forced to "plan runs" in order to prevent loss of in-game profit/playtime.
C) Crystal Energy still has a reason to be purchased (read: Three Rings won't be hurt by the change).
Possible solutions:
1) Allow gate access with no Mist Energy.
-When no Mist Energy remains to pay for gates, Crowns received is reduced by 80%; no Heat is gained. Must pay CE to revive, obtain Heat or craft items.
2) CE can be directly purchased from the game via Crowns.
-Limitations to Direct CE purchases per day: 2 x 100 CE for 3000 Crowns per?
-CE purchase from other users remains unlimited.
3) Add a Crown sink within T3 content to balance Crown vs. CE consumption.
-increases demand for Crowns to match demand for CE.
4) Expand Mist Energy bar to 300 maximum w/ 300 per day.
5) Other nondescript Mist Energy revamp.
I don't have all the answers, only a few ideas. All I know is that, if no changes are made, two things will happen:
-The Crown:CE market will inflate to the point where even players in T2 will become Mist-only users due to cost restrictions.
-The game is not enjoyable as a Mist-only user due to severe restrictions on playtime. Even free users pay for CE with Crowns. Mist alone isn't fun.
Thank you for your time. Hopefully we can figure this out before we reach hyperinflation and start losing users.
150 Mist Energy is good. Nothing higher than that.