If you're going to keep us re-rolling races, then you need to provide a way to gain XP way faster than what is currently implemented on re-rolls. Perhaps +25% (at least) xp gain for each challenge completed with that race? Up XP gains with the owl by a ton? It's too slow to re-roll and will be just as slow when you implement new challenges.
Just tell people what the prestige boosts are rather than using language to hide the actual figures. I feel that developers who do this are being purposefully dishonest when they do this. If those figures update through testing, cool, just let us know. But telling me "slight" tells me nothing and in the end people are going to test it, post it on a site, and you'll have just hidden it from the user for no reason at all.
After a while, you're just spending a day or two waiting for it to double up your rewards. Gets way too slow eventually and you feel like you're not gaining anything of value.
Please rework upgrades for throwing knives. It's a set early skill, quickly represents 0% of you damage, but you're having 12.1B cost +100% upgrades for a skill that does 0.00% damage overall. Perhaps look into more buffs (like what we select for skills in early mastery slots otherwise) or perhaps even unique choices where we decide between buffs or a chance for it to split into multiple knives or something.
I feel that having to click chests and bowls of whatever they are should be enough rather than having to additionally hover over what fall out of them to pick them up. Unnecessary extra work for something that we have to time and click on as it is.
Please add some performance options. This game can run really hot on some PC Tablets with higher than normal resolutions. Disabling animations alone would go a very long way.
Looks like you added in some random 'heavy hitters' into the mix to attack just one raider and delay recovery times. A bit annoying having 3x higher than quest raiders and essentially having one get one-hit at random just to wait minutes before then next quest goes off. You want longer times, don't do it like this. Just cheap. Make more challenging dungeons, not cheap one-hitters.
Market seems extremely rigged. Can watch it for 5m and it will stay in one range, buy stuff, and suddenly it plummets and goes a max of +6 over the old 'low' price when before you bought it, it was +20 over.
1. Extremely slow progress past 100 (gold gain is atrocious even with 200% buff and no cat boxes at all?); 2. shouldn't have to pay to de-list a cat, only for merging (you're already losing all levels with it by doing that); 3. Abilities are design so they're only actually worth getting to a prestige point when you don't have enough money or cats with buffs from cats being not even worth noting, to say the least.
Because I'm seeing this question a ton, having unlocked everything but the 1UD trophy, I currently have 117/117 upgrades. I doubt that finally recently added money trophy will add another one, so for now I think it's a max of 117.
Once you reach the point where you're just grinding for those last 3 money trophies, game quickly becomes very boring. Needs more upgrades/goals to fill that void.
Goblin Central Bank is kind of a useless upgrade considering how low the amount of money it gives you. Please considering replacing with something more meaningful in the long run or providing some way to actually buff this to a point of being useful.
Trophies seem like wasted potential. They should affect your game in some way rather than just sitting there. Perhaps having certain trophies would unlock new upgrades with each faction or something?
Game is bugged for me graphically. Bottom left of the game is blurred out. Running latest AMD drives for my card (just updated last week). Other games run fine without similar issues.
 "Idle Grindia: Dungeon Quest"){kind=icon}
 "Cividlization 2"){kind=icon}
 "Absorber"){kind=icon}
 "Infinite Cosmos"){kind=icon}
 "The Evil Lair"){kind=icon}
 "Tap Adventure: Time Travel"){kind=icon}
 "Cosmic Raiders Alpha"){kind=icon}
 "Blacksmith Lab"){kind=icon}
 "Tap Cats - Idle Warfare"){kind=icon}
 "Realm Grinder"){kind=icon}
 "Overlod"){kind=icon}