Range is a rather powerful stat in this style of game so I agree but tried to keep it under control. As a result the only +range there is is tucked in the collection system if you didn't already discover that.
Perhaps with the upgrades tab open the game banner could take up the left side of the screen and the upgrades section take up the right side of the screen so all the upgrades could fit without scrolling. Currently about 1/4 of the game area is wasted needlessly
It would be cool to have an option to auto start new stage until the next stage has an alive VIP so you can AFK without risking missing the VIP.
Also, gear/relic or similar drops would be cool that can boost zombie stats, either having better quality the deeper you go or possibly having special effects like +movement speed, you could also consider bosses at certain levels or even a separate menu where you go and have a set time limit to kill the boss or it could require the gear you find to be strong enough to defeat the boss, maybe gear only comes from the bosses?
Definitely has potential and enjoyable so far, hoping to see more content soon though for sure.
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Range is a rather powerful stat in this style of game so I agree but tried to keep it under control. As a result the only +range there is is tucked in the collection system if you didn't already discover that.