I guess you probably wanted some info on the kind of world (or game) that happens with Grim Tales, here's some advice:
In a system without generic classes (Expert, Commoner) and specifically a system where no 'invisible boundary' exists between hero's and farmers (in d20M, only 'heroes' can select talents or take advanced classes) then hero's are somewhat different then they are in the traditional D&D/Fantasy RPG:
1 - Heroes are more cautious (in a realistic way). That farmer they just walked past (eps. at low levels) probably has as good or better a chance of being able to kill them as anything they 'bump into' in the woods...
2 - Heroes are more heroic. Without that 'invisible barrier' that super hero games (*like D&D & d20M - I'll make a footnote about this) it becomes "You no what, I'm no better than you, farmer john, but _I'm_ going to go try to save the town. Go plant so wheat." - They're heroes because of what they _try_ to do, not what they're capable of.
3 - Heroe's are more humble. Much like #1, when even though your 8th level, you know you can't just go in, kill the army and take over a nation (due to your SUPER-POWER*) then you tend to not get arrogant as levels progress.
Footnotes
* D&D & D20M are superhero games, no way around it. Don't agree:
Why was superman a superhero? (Yes, he had good morals & faith & stuff, but so did Lois Lane...) Superman could to things no mortal could do: Fly, Have Super Strength, Heat/Laser Vision, See Thru Walls, etc...
Wizard lvl9 and d20M Fast 6/Tough 6 are super heroes. Wiz9 can fly, see through walls or in the dark, alter his body...all things Com2 adn Exp9 can't do. Same with f6t6 - he can withstand blows, evade, dodge, (list of other talents here) all of wich Ordinary12 can't even hope to do.
Any system where you're a hero because you're capable of feats (no pun intended) that 90% of the world isn't is a superhero game.