Here is a simple guide on how to enable dev console with the cheat codes in WRATH Aeon of Ruin.
givehealth — Health. Heals the player in full.
give ammo — Full Ammunition.
give all — Get all items.
notarget — Invisibility. Enemies can’t see you.
noclip — Turn Ghost Mode on/off. No clipping lets you go through walls.
kill — Kills the player. Begin again on the current map with your original health, weapons, ammo, and more.
give red key — Gives you the Red Key.
give blue key — Gives you the Blue Key.
give weapons — Gives you all weapons.
give invulnerability — Invulnerability.
fly — Flying Mode.