The basics:

• You play as a mage. 
• You kill enemies with your wands/spells.
• You progress downward through levels and reach safe zones where you can purchase new wands, spells and perks.
• When you die, it's game over and the entire game restarts (quite literally due to the design).
• If you progress far enough you'll reach the end-game boss. 
• Defeat said boss to achieve victory!

• You have one life and there are no saves.
• Zero hand-holding. The game tells you the controls and off you go to explore and die.
• Enemies do not fuck around. They will wreck your shit.
• Bosses laugh at you and ragdoll your corpse if you're not prepared.
• Everything else can and will kill you.

Pros:

• There's a HUGE variety of spells for your wands as well as player perks.
• Spells can be linked together in weird and wonderful ways for maximum carnage. 
• It's insanely fun (and dangerous) experimenting with different spell and perk combinations.

• Without spoiling too much, the game is a lot larger than it appears. 
• Try going off the beaten track and see what you can find. 
• There's a lot of secrets to be discovered. Some are massively cryptic though, so I found myself having to search for answers online.

• Awesome variety of enemies with unique stats and abilities.
• You'll find yourself learning enemy behaviour and capabilities.
• A spell which is effective against one enemy might be totally useless against another.

• Everything in the game can be destroyed in one way or another.
• Solid rock can be nuked into oblivion, liquids turned into gas and flammable items burned so you can unleash your inner pyro.

• You can collect all kinds of liquids in bottles which act as utility items.
• For example, some put out fires while others provide temporary buffs (and debuffs).

Cons:

• The random spells, wands or potions you find might be undesirable depending on your situation.
• On the flipside it pushes you to adapt and figure out how to make it work in your favour.

• It's not uncommon to accidentally explode yourself because you did not see a single pixel right in front of you during a fight.
• It's also quite easy to become blocked or trapped by a single pixel while you're manoeuvring or fleeing.

• I personally do not think this is a bad thing, but others might. The game is designed to be challenging and harsh.
• You will die easily and frequently.
• Losing everything after many hours of hard work can be really frustrating but that's the nature of the game.

Pain and suffering guaranteed

It's all about the journey, not the destination

You get better ny learning, not by grinding

High replayability is the rule here

Verdict

Pay Your Taxes

Pray to RNGesus

Point and Shoot