Looking at balancing I feel like alien has some really powerful relics. I'm not saying alien should be nerfed, but I think it might be worth buffing some of the other types. I find the friends in other types to be really unique but always feel the relics need a bit more oomph.
Here's a new link to the discord server: https://discord.gg/MePkyPnjUN
Yes, an endless mode is planned for the future. Just not sure yet how to balance the exponential scaling of the late game haaha