Best casual idling time killer game

Oh and please suggest games without microtransactions. I'm broke as it is with the sale going on lol

Go find an old copy of SimEarth somewhere.

Hmm any other suggestions?

The monster clicking game :P

you demand too much. if no game exist make one, there are plenty of indie outthere, you could be one ;)
i had a game (not on steam) that you had to grow planets, and cross breed and stuff.
it was quite fun. don't remember the name sadly so not much a help

Here are a few freebies I've been playing:
Clicker Heroes
AdVenture Capitalist

Clicker Heroes and maybe that My Lands one? I think that one might have microtrans though, I'm not sure, I barely played it

If you have an android device I'd suggest Tap Titans, it's very similar to the Summer Sale Monster game

FTL or Terraria.

AdVenture Capitalist

civ 5, tropico 4