everyone knows the complaints, and everyone is tired of hearing the same old new guy saying "HEY, EVERYONE, LOOK WHAT I JUST DISCOVERED!!!!" as if the rest of us didn't notice.
now, the big problem with the energy system, is that it pushes players to play other games when they are out of energy, many of them often giving up on continuing a "free" account. now, if the game was more "multiplayer friendly", it wouldn't hinder your play time, and here is the simple solution.
have it so that if you don't pay for the floor your on, you don't keep anything, and all the spoils and crowns, etc. go to the players who "paid the 10 energy" at the elevator. I've seen a couple other posts like this, but they always "want something".
if you removed rewards for people out of energy, the incentive to grind is gone, but the fun isn't. they can still enjoy your game and play with their friends, rather than sitting in the haven twirling their thumbs.
this could even cause a player to fork out a little bit of cash for ce when they are doing runs with their friends if they keep finding good spoils, and decide to purchase some ce so it so they can maybe make a better weapon before their ce runs dry again for the day. that said, if you do this as part of an update, I'd recommend increasing the amount of rare drops and finds, like being able to find weapons and armor of up to a certain star level based on the tier your playing with, and danger rooms yielding much larger pay outs.
you could even justify this new system by saying, the 10 energy you were using allowed you to send your spoils to a storage thing at the elevator, and so if you didn't take that 10 energy with you, you can't keep anything from that depth. simple, the game is still fun, everyone wins right?
thoughts, corrections, feelings?
The CE pays for the cost of the servers (at least in part).
You will put the same load on the servers regardless of if you are playing and collecting drops, or not collecting them.
If they do this, they will likely need to counter the increased costs by making other things more expensive, such as making it cost 20 energy for the elevator, or even more for crafting.
Also, would you be able to choose what levels you paid for, i.e. even if you did have energy, could you choose to not pay. I don't want to use up my CE that I am saving up for crafting, to go play levels. So if I am still forced to pay for the elevator if I can afford it, I won't be playing any more than with the current system. If the energy cost go up to compensate, then I will likely play even less.
However, if you can choose to pay, then it can be exploited, people will go through the first stratum of a tier without paying, and go through other small paying levels without paying, and save the energy for big payouts like arenas. Which personally, I think would be awesome if it was just for me, but overall, it will just lower the value of crowns and serve to be pointless. Those who go and play like this, will ruin it for those who play normally and pay for each level.