Some early feedback from me...
I tried out a plain PlFi and couldn't figure out how to get out of grey contam while playing more or less normally. The character started at yellow contam, but dropped to grey pretty soon after killing a few dudes, and nothing I've done has nudged it up since. (There was a point when I actually had no contam, but base hunger drove it back up to grey pretty quickly.)
I tried Overload a few times in an effort to get my contam up, using it about once every 3 fights or so even when not strictly needed, but I was still stuck at grey. Possibly because I was killing enemies quite efficiently with Overload at the same time.
Probably the next thing I would try is to just keep abusing Overload on an empty screen, and see how running at Yellow (or higher) contam plays like.
So I guess my main feedback point right now is that it seems possible to play a melee plutonian as basically a human that ignores hunger. My suggestion would be to increase the contam from Overload, and possibly the contam from base hunger as well. (EDIT: just saw that you cut the original contam cost of Overload to 1/3. IMO higher is better - right now it feels like a costless ability)
Other suggestions:
1. It would be nice if the blast radius of Overload is previewed (Fireball style), so you know which enemies are going to get hit.
2. Is it possible to kill yourself using Overload, i.e. if you're already at low HP? I'm thinking Overload should simply be disabled below some safe threshold of HP.
3. A minor thematic thing: let !mutation and !benemut add contam. Let !cure mut reduce contam (Assuming mutations do get removed from Pl)
tedric wrote:- Can glow ever be eliminated entirely, even for just a short time? Perma-glow means Invisibility is useless, which is a drawback that hasn't been mentioned yet.
With normal melee + base hunger plus killing enemies it seems possible to stay at grey contam indefinitely. Of course Invis will add its own contam so maybe that's enough to push you into glowing.