Quest-only (make players choose from a selection of 2-3 Axls after quest is finished. This allows players to feel unique from other players despite finishing the same quest).
Side story-only
Region-only
Mutated
Shiny
General Gameplay
Daily & Weekly Quests
Sidequests (possibly to unlock hidden areas)
Special events
Permanent in-game store
Adventures (send Axolotls to adventures and they will return with goodies. Sending healthy Axolotls will yield the highest rewards, rarities will give bonuses)
Interactive Gameplay
Buildable special facilities (different from unlockable facilities)
Repairing broken bridges and broken ladders to gain access to hidden areas.
Resource gathering
Extra Gameplay
Side stories (Separate monetized content - most likely just gives new Axolotls instead of new Facilities to avoid P2W. Cosmetic items should be included too.)
Misc Gameplay
Screenshot Mode
UI Themes (can be bought at fixed price through in-game store, cosmetic only).
Weather
Random Cloud Spawning
Blessing of the Elders
Release 5 Healthy Exquisite Axolotls to gain access to a mysterious island.
Axolotls
General Gameplay
Interactive Gameplay
Extra Gameplay
Misc Gameplay
Blessing of the Elders