This mod is derived from the official WaveDefense scenario mode. Get funding to upgrade technology by killing biters. 这是从官方场景模式“异星格勒保卫战”提取出来的功能，通过击杀虫子获得资金升级科技。如果你玩过那个模式，你就知道这个mod是干啥用的。在原基础上添加了一些可升级的科技。可以与当前科技叠加效果
Counted when a user downloads a mod release for the first time. Before Nov 2021 it counted everytime a user clicked the mods download button.
Counted when a user downloads a mod for the first time. Has no data before Dec 2022