The game clearly has a late stage high level player retention /keep playing incentive problem.
Because of me venturing in to the master league, now all my high level resource challenge events are loosing streaks, why? Cause I am up against players with max out level 10 units where I am barely max 9 starting 10, I was told it gets worst in master 2 level and so on with Whales left right centre. This wall of progressing clearly is pay to progress and subsequently pay to win. It will turn off many players, in my alliance alone, four players last til master and gave up soon after.
Change the games currency and economics is key to the survival of this game.
The devs should:
Stop charging diamonds for repeating events, put up 1000 gold or something like that to repeat the event. Such as resource challenge, it is one of the disengagement for many players to continue playing. Hence limit engagement numbers at any given time, the more player the better for any MMO, simple as that.
Extend these events, by 2X length. Say resource challenges, don’t end at 10, end at 20 with more rewards that prompt more engagements.
Increase fuel storage limit to 20 or more, or even better, make that another currency which player can choose to use to replay events instead of paying gold.
introduce customisation of colour pattern skins for units that player can diy with Dimond, put declarations what not on units for more cosmetic variation content.
Introduce one off usage randomised ability cards that can be purchased via a form of loot boxes, this adds special abilities on a selected unit in a given game, ie: laser trooper is slower but gets 2X fire power cause 40, mammoth tank is twice the speed but half the health, etc, etc. this changes how given deck be played at higher level to spice up the fun factor.
Introduce personalised battles, a type of random map where player progresses for various rewards along the way by winning certain number of games, loosing the games would also push back player progress. These modes only available for master or higher level players. Level will be capped and each match would be in different game play modes include those in the events. This mode would keep player engaged and player can pay diamonds to progress in forms of pay to progress.
Bring the game to origin pc / Xbox one with full mouse control but shares progress with mobile, but pc / Xbox has their own player pool, pc only vs pc players.