Buy armour whenever you can afford it as it will effectively double your health.
Carve out a space
If you can dominate one side of the screen without worrying too much about everything at once, that will make survival easier.
Classes and Modes
You can spend your fame points to unlock the following classes and content.
Class
How to unlock
Wizard
3,000 points
Knave
5,000 points
Advanced Mode
8,000 points
Boss Rush Mode
10,000 points
Don't approach monsters too hastily
Let monsters float onto the screen before you get near, so they don't have a chance to score a free hit as they're arriving.
Don't miss the shopkeeper.
When you complete a level, or as you begin a new one, the shopkeeper briefly appears to sell you important items. Don't miss your opportunity to spend that hard-earned loot. It's more important to spend than to save!
Extra Characters
Concentrate your efforts on earning enough HP to unlock the extra characters as this will make the game easier and more interesting.
Get yourself a Dragon's Scale
The item is expensive (5000 fame points), but will let you keep playing after you die.
Grab loot immediately
It disappears within a few seconds of appearing, so don't give it that chance.
Monitor your health meter constantly
Since you'll have to restart if you let yourself die, there's really nothing more important to pay attention to than your health bar.
Quest often
Any quests that you complete net you all-important fame points.
Rate the game
If you rate Slayin on the App Store, you'll be rewarded with 500 easy fame points.
Tweak the controls
Do you prefer right-handed or left-handed play? Either way, there's a setting for that. Just check the Options menu.