Great game. Some annoying bugs, but most have been mentioned by TheFantacyClub already.
About the bug mentioned by Kirochi3 below me: You can get the recruits to start doing the quests again by first firing them, then waiting for any ongoing quest to finish so you see the "START", and then hire the recruits again.
What the gentleman said below, plus : sometimes recruits just won't do the quests, you need to restart the game :(
Bugs found:
Multiplier does not decrease below 0.01% in time (in other terms, hero stones are worthless beyond certain cuantity, approx. 20).
Time counter does not goes below 0.1 seconds in time (the greatest feature of exponential/idle games are the first task is overpowered), so the first quests are useless (from the forth unlocked last to the first are useless). If you buy recruiters, they simply can't be useful beyond 0.1 sec, because there are a limit in the counter. If you have a problem with graphical artifacts, simply put a white rectangle instead a increasing counter. Simpler is better.
If you have all recruits, the discounts in daily kingdom news are meaningless. Same with items, armor, pets... (what's the point in offer a discount in armour when you have all of them)
The money you gain with the rent the free space is not linear with the amounts you need to buy, compared with the 2 in the middle and the 3 lasts. The money you gain equals the experience you gain, so this is a very weak point to redo the adventure. The castle, without recruits, gives you 1k when rent at max, costs 1 M; the povince costs 1Sp and gives you 100Sx. (10% vs 0.1% means A LOT).
The "permanent gain" does not mean "permanent" when restart the adventure, this means all the gains goes to the closet when restart (the perma buff in some quests are quite significant and useful to invest in the third selection). The same goes into the invest time: hero spirits does not decrease the time to complete an invest (if quests are faster, invests, too).
You force to use the invest when entered in the lasts upgrades, there is no quests available to reach 10^36, 10^39.
It's imperative to put in the options menu one option to change from exponential to nominal exponents: "K-M-B-T-Qa-Qi-Sx-Sp-Oc-No-Dc-Un-Do" means "10^3-6-9-12-15-18-21-24-27-30-33-36-39"
The 2nd last monster needs some Qi (still blocked when you have 1Oc, nonsense).
The game is awesome, I really adore to extract the formulas you used to craft this game. Very accurate and well done. Check the bugs and good luck.
I like the game, but the speed modifiers actually slow me down instead of speed me up. I think, anyway.
It says my speed modifier is x0.01
Fun game, decently addicting, but for some reason buying the speed multipliers has sent my speed multiplier down to 0.69.
If that gets fixed then it should be a lot easier to progress.