Dear SK people, I really want to see this game get as many buyers as possible.

problems 1,2,3,4:

reaching T2 is too rewarding and easy to accomplish (high crown/heat payout (especilly jelly king))
meshing new players and experienced T1 players together for days, if no money is paid.
crown inflation
afk parties at entry stage for higher tiers

sollution:
remake tiers

T1 (floor 1-4)

random recipes at floor4, separate from T2 beginning, "floor4x"
to offer something to do for more advanced T1 players, floor 4 will also feature optional lift down to a special combat zone

T2lite (floor 4x-13)

Available with 1* gear
Reaching it would feel rewarding, while being easily accomplished by freebies
Crown payout closer to T1 than to current T2
Here is where people want to start spending money (for 3* gear)

T2Hard (floor 13x-23)

Available with 3* gear
Crown payout like current T2
Difficulty on 18-23 about current T3 (not the brutal stages)
Possibly 5* equip on floor 23

T3 (floor 23x-???)

No idea
Balance heat/crown payout, balance stages (shock/freeze status areas and crowded fiend areas are just a lot harder than poison/plains areas)
Perhaps 5* requirement, if they'll be sold on floor 23

Some benefits:
Since T2lite is not much more than a glorified T1, and requirements to get to T2hard aren't so high either, people could easily feel like to and make the step up with real money, like they do from T1 to T2 currently.

T2Hard second half could actually be hard, lowering crown payout for newer T2hards still.

problem 5:
jelly king is the most rewarding thing to do

sollution:
add more content, balance regular vs special stage payout, balance T3 payout

problem 6:
Not enough continuous gametime to get sucked in

sollution:
weekly mist bar of 100

this will allow a new player to play for 300 on the first day (with the free steam tank), while only increasing daily Mist Energy gain by 14,3
also encouraging people who dont play daily