There is no quest.
I didn't get to run.
Now, I know a game's title shouldn't necessarily be the best descriptor of a game, but if your name is this generic you expect it to be justified. It is not.
QuestRun is a good looking level-based turn based combat action game where you control up to 3 heroes as they fight through a series of waves of enemies. Combat is automatic except for unit positioning (there are 3 lanes, each lane can hold 1 hero and switching can be done at any time) and special abilities that charge up based on hits landed (1 per hero).
So far so good (or... So far so "I guess this is alright").
It starts falling apart when you realize that this is all there is.
There are 4 dungeons, which just boil down to a series of combat waves. No exploration of any kind in between.
Beyond that there are a number of optional quests that you use to unlock alternate forms of your heroes... which boil down to combat waves where your hero roster is predefined.
Successfully finishing a level awards you with gold, crowns and crystals (the last one only if it was a dungeon) which are used to buy things in the store, passively unlock dungeons and quests and buy special
things in the store respectively.
If this sounds like a cash-store model that could support in-app purchases then you would be correct. Even though these features are (fortunately) not present in the Steam version the original Mobile app definitely had it.
Finishing a level also resets ALL character progress, which within a level takes the form of equipment and a simplistic experience system.
This means that, assuming you win, your hard work (levels can take well up to half an hour and allows no mid-level saving) will reward you with a measly bag of gold which will net you very little in the game shop.
To give an example, dungeon gold gain is 200-300 per victory and a new hero class can easily cost 5000 gold.
The currency rate appears to still be on "cash shop" mode, meaning what progress there is is very slow.
Other than the combat there is NOTHING there.
No semblance of a plot. No exploration. No backstory for the heroes, the world, the dungeon, the enemies, the quest.
I was sorely disappointed by this game and do not recommend it.