The maximum total life of all enemies seems to be capped at around 1.4e16, at least that is the highest number I have seen. Most of the time the hp drops to 1e15 after reaching the limit, as if the overflown hp number just got divided by 10, and then slowly increases over the following waves, really unusual overflow behavior. Not sure if this originates from an overflow of individual unit hp or something else, since it's far above 2^32 and far below 2^64. So if you are able to go slightly beyond wave 200, ...

Did the patch change anything on the first Boss (Wave 10), seems insanely stronger than before and so far requires a strong setup to beat without losses on most turrets currently. A few bad rewards / bad free Wave 5 reward and it either destroy you entirely or at least some of your Enhancements/Turrets. Everything past that one appears normal but currently it's quite often a roadblock. Or at least a reason to restart (after losing 2+ Enhancements). Might also just require a different approach but ...

Is there anything about the developer being active, is there a roadmap of some sort?

For five straight games, I haven't gotten a synth until level 40+. For five straight games, I've had all but 6 spaces filled with low level (read T1) mods. AND For five straight games, I've lost before even reaching level 50. Because of no synths. Has the RNG changed for this mod is this just bad luck? I mean, c'mon. For all the waves that I fought tooth and nail for a win and most times losing mods because there just isn't enough damage output, don't you think a synth offered at least every 10th wave ...

Sadface for me as I wanted to try this game hit start game it pops up a window that is gray then proceeds to almost instantly shut down the game... tried to Validate files but no help I checked the requirements and I'm far beyond all requirements. yet it never even gets to a loading screen... :'(...