Easy "Arena" Achievement...
	Easy "Lights Out" Achievement...
	Easy "No Time to Explain" Achi...
	Easy "Uncle Scrooge" Achieveme...
	Easy "Whip It Good" achievemen...
	Various Steam Achievements...

To unlock this achivement you need to beat twenty waves of enemies in the arena mode. Play as the warlock as he gets respawns when his demon is leveled up, this essentially means you can have as much lives as you need. Before entering the portal to the arena mode play the first stage normally (play up until the castle door) this way you can get extra items and potions that will transfer with you to the arena mode increasing your chances. This method also works for endless dungeon mode. Save your healing items as they're rare in this mode.

Rocks can be used as throwing items to stun enemies. The first level is bountiful with rocks, so each time your start a new game, pick them up and hit enemies with them. Rocks can also be found scattered throughout the game, but they spawn often in the first area. There are also a few club-like weapons that stun enemies on criticals, which can be useful to achieve this.

Not a very hard achievement but here are some tips.

Step 1: Play on easy mode for weaker enemies.
Step 2: Skip all the side rooms and skipable rooms (i.e rooms that don't lock you into a fight)
Step 3: Play the assasin class as he has the best movement speed at the start.

Pretty simple achievement though still involves a bit of luck, that being said here are some tips.

Don't buy anything at the shops.
Destroy all the clutter around each room to maximize your gold.
Some items can help you make this achievement easier: the "thieve's mask" doubles the value of each coin.

The "endlees pouch" gives you three coins per new room and finally the pirate sword gives you a gold coin f" gives you 3 coins per new room and finally the pirate sword gives you a gold coin for each enemy killed or destroyed item. if you're lucky enough to get both the mask and the sword then this achievement will be a lot easier.

Get the Hammer of Elements. Swap to an element that the monster you are going to attack is immune to. For example, if targeting flying skulls, switch to fire damage.

Complete the indicated task to unlock the achievement.

Achievement	How to unlock
A Bull in a China Shop	Destroy 10000 decorations.
A Devilish Rock Off	Kill 100 demons.
Adept of Magic	Deal 10000 points of damage with magic.
Assassinated	Kill your first boss.
Bar Fly	Find all haunted inns (the devil, potion shop and ghosts).
Black Widow	Poison 200 enemies.
Boxed	Kill 10 enemies with the dwarven contraption.
Breaking Through	Destroy 200 shields.
Bullseye	Hit enemies 25 times with a throwing weapon.
Cannonball	Hit 7 enemies with one dash attack.
Cheat the Devil	Turn all cards in the game with the devil.
Chop! Chop!	Hit 7 enemies with a single throwing axe.
Cimmerian	Complete Grand me revenge!, Crush and Oversized.
Cleaning Garbage	Throw 200 enemies into chasms.
Color of Magic	Deal 100000 points of damage with magic.
Crush	Crush 10 enemies by stomping.
Crushed	Kill 10 enemies with the Mighty Foot.
Crushing Blow	Hit for 250 or more witha single hit.
Crushing Boots	Kill 100 enemies with stomp.
Demolition Man	Hit 200 enemies with explosions.
Demonic Greed	Open 13 demonic chests.
Dungeon Crawler	Go through 1000 rooms.
Early in the Morning	Get drunk.
El Dorado	Collect more than 20 coins during the Gold Rush event.
Elder Ones	Use 5 altars.
Executioner	Decapitate 25 enemies.
Exorcist	Remove any curse from yourself.
Forest Den	Get treasure from the forrest den.
Forest Sheppard	Complete Grave Robber, Get Trippy and Forest Den.
Friendship is Magic	Win a multiplayer game.
Get Trippy	Get high with the magic mushroom.
Give Me the Booty	Collect 1000 gold.
Gooooooal!	Send 200 enemies flying by kick.
Grand Slam	Slam enemies 200 times to the ground with upper cut attack.
Grant Me Revenge!	Kill 50 enemies.
Grave Robber	Loot graveyard.
Gravity is a Harsh Mistress	Drop 10 giants into a chasm.
Heigh Ho, Heigh Ho	Have 7 familiars at once.
I Love Shopping!	Buy 100 items.
I Shall Pass!	Win the battle on the castle bridge.
I'll Be Back	Die 5+ times and still win the game on Hard or higher.
It's Not Lupus	Heal 5000 hp.
It's Raw, You Donkey!	Kill the cook.
Jack of All Trades	Win the game with all classes on Hard or higher.
Just Chillin'	Freeze 200 enemies.
King	Win the game on Insane difficulty.
Klaatu Barada Nikto	Kill 25 enemies cursed by the Book from the Cabin.
Knight	Win the game on Hard difficulty.
Librarian	Find 10 books of magic.
Lights Out	Stun 100 enemies.
Like a Boss	Win all statistics when completing a level.
Man of War	Complete King, Jack of All Trades and Untouchable.
Master Thief	Lockpick 200 chests.
Misfortunate	Hit all rewards on the Wheel of Misfortune.
No Time to Explain	Win the game in less than 30 minutes.
Not Even a Scratch	Kill 25 enemies in a row without being hit.
On the Highway to Hell	Complete A Devilish Rock Off, Exorcist and Elder ones.
One Man Army	Kill 1000 enemies.
Open Sesame	Open 20 chests.
Oversized	Kill a giant.
Please Don't Hurt Me!	Die 5 times. Get an access to a casual mode.
Roasted	Deal 5000 points of burn damage.
Safety Dance	Clear 100 rooms without being hit.
Sailing the Seven Seas	Complete Give me the booty, Open sesame and Early in the morning.
Saving Private Player	Ressurect a friend via combat in a multiplayer game.
Scribbler	Use 3 scrolls.
Shadow Warrior	Complete Bullseye, Why so jumpy? and Assassinated.
Soldier	Win the game.
Steady Hand	Lockpick 50 chests without fail.
Sword and Sorcery	Complete Adept of Magic, Scribbler and Librarian.
Tasty Bewerage	Drink up 200 potions.
The Bigger Ones Fall Harder	Kill 100 giants.
Through the Looking-Glass	Win the game in Shadow World.
Tough Luck, Mate	Have 3 curses at once.
Uncle Scrooge	Have 1000 gold in your pocket.
Untouchable	Win the game without dying on Hard or higher.
We Are Closed	Buy the shop out.
Whip It Good	Build the hit counter up to 50.
Why so Jumpy?	Acquire double jump.
Wizard Buster	Kill 10 wizards.