Ideas for trophies and badges might be helpful
We're definitely planning to add all sorts of achievements and progression-style unlocking quests, we just don't want to make the game too grindy.
Let's see (not all of these are really that hard. As its nice for new players to get something fairly easy to obtain)
Experienced - Reach level 10
Very Experienced - Reach level 10 with 50(ish?) extra XP
Many faces - Unlock every race
Many abilities - Unlock every class
Many paths - Unlock every god
? - Complete the intro dungeon for each class
Polytheistic - Warship 3 gods in a single dungeon
It's Hard - Beat a hard dungeon
Not quite impossible - Beat a vicious dungeon
Altruism - Finish a dungeon with 100 pieity without spending piety, or desecrating an alter.
Well poisoned - Get poisoned 20 times (must not be already poisoned to count)
Well burned - Get mana burned 20 times (must not be already mana burned).
How low can you go - Beat the dungeon boss at level 5
Good health - obtain 150 or more max HP
Mana battery - obtain 30 or more mana
Well bricked - Gain 50(?) bonus XP from turning enemies to stone.
Challenge seeker - only kill monsters that are higher level than you.
Cha-Ching -Have 100 or more gold while adventuring.
? - Beat a dungeon with 10 or more stacks of weakness
Learning is half the battle - After damaging the boss, gain 2 levels without letting the boss reach full health.
For great speed - Beat a dungeon in under 5 minutes
Full clear - kill every monster above ground
Conversion master - gain 1000 conversion points
Don't strike first - Hit a monster that has first strike while you have first strike
Class challenges (must be completed on normal or harder dungeons):
Fighter - Beat the dungeon boss at level 6
Berserker - Beat the dungeon without killing anything above your level
Warlord - Beat the dungeon while getting mana burned at least 15 times
Thief - Beat the dungeon without collecting any power ups
Rogue - Beat the dungeon with at least 130 health
Assassin - Kill 20(?) monsters lower level than you
Priest - Beat the dungeon killing no undead, and using no health potions
Monk - Beat the dungeon with maximum physical and magic resistance
Paladin - Beat the dungeon without killing anything below your level
Wizard - Beat the dungeon with a full set of Taurog's gear.
Sorcerer - Beat the dungeon while destroying 30 walls
Bloodmage - Beat the dungeon without recovering any health from exploration.